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chore: Update SDK documentation (#2494)

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1
docs/docs.json
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@ -359,6 +359,7 @@
"python-sdk/fastmcp-server-auth-providers-bearer",
"python-sdk/fastmcp-server-auth-providers-debug",
"python-sdk/fastmcp-server-auth-providers-descope",
"python-sdk/fastmcp-server-auth-providers-discord",
"python-sdk/fastmcp-server-auth-providers-github",
"python-sdk/fastmcp-server-auth-providers-google",
"python-sdk/fastmcp-server-auth-providers-in_memory",

71
docs/python-sdk/fastmcp-server-auth-oauth_proxy.mdx
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@ -26,17 +26,23 @@ production use with enterprise identity providers.
## Functions
### `create_consent_html` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L237" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_consent_html` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L259" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_consent_html(client_id: str, redirect_uri: str, scopes: list[str], txn_id: str, csrf_token: str, client_name: str | None = None, title: str = 'Application Access Request', server_name: str | None = None, server_icon_url: str | None = None, server_website_url: str | None = None, client_website_url: str | None = None) -> str
create_consent_html(client_id: str, redirect_uri: str, scopes: list[str], txn_id: str, csrf_token: str, client_name: str | None = None, title: str = 'Application Access Request', server_name: str | None = None, server_icon_url: str | None = None, server_website_url: str | None = None, client_website_url: str | None = None, csp_policy: str | None = None) -> str
```
Create a styled HTML consent page for OAuth authorization requests.
**Args:**
- `csp_policy`: Content Security Policy override.
If None, uses the built-in CSP policy with appropriate directives.
If empty string "", disables CSP entirely (no meta tag is rendered).
If a non-empty string, uses that as the CSP policy value.
### `create_error_html` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L394" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_error_html` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L429" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_error_html(error_title: str, error_message: str, error_details: dict[str, str] | None = None, server_name: str | None = None, server_icon_url: str | None = None) -> str
@ -95,7 +101,16 @@ This allows stateless JWT validation while still being able to look up
the corresponding upstream token when tools need to access upstream APIs.
### `ProxyDCRClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L182" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `RefreshTokenMetadata` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L182" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Metadata for a refresh token, stored keyed by token hash.
We store only metadata (not the token itself) for security - if storage
is compromised, attackers get hashes they can't reverse into usable tokens.
### `ProxyDCRClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L204" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Client for DCR proxy with configurable redirect URI validation.
@ -125,7 +140,7 @@ arise from accepting arbitrary redirect URIs.
**Methods:**
#### `validate_redirect_uri` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L211" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `validate_redirect_uri` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L233" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
validate_redirect_uri(self, redirect_uri: AnyUrl | None) -> AnyUrl
@ -139,7 +154,7 @@ This is essential for cached token scenarios where the client may
reconnect with a different port.
### `TokenHandler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L487" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `TokenHandler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L522" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
TokenHandler that returns OAuth 2.1 compliant error responses.
@ -162,7 +177,7 @@ Per MCP spec: "Invalid or expired tokens MUST receive a HTTP 401 response."
**Methods:**
#### `response` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L506" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `response` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L541" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
response(self, obj: TokenSuccessResponse | TokenErrorResponse)
@ -171,7 +186,7 @@ response(self, obj: TokenSuccessResponse | TokenErrorResponse)
Override response method to provide OAuth 2.1 compliant error handling.
### `OAuthProxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L536" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `OAuthProxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L571" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
OAuth provider that presents a DCR-compliant interface while proxying to non-DCR IDPs.
@ -251,14 +266,18 @@ OAuth Flow Implementation
State Management
---------------
The proxy maintains minimal but crucial state:
The proxy maintains minimal but crucial state via pluggable storage (client_storage):
- _oauth_transactions: Active authorization flows with client context
- _client_codes: Authorization codes with PKCE challenges and upstream tokens
- _access_tokens, _refresh_tokens: Token storage for revocation
- Token relationship mappings for cleanup and rotation
- _jti_mapping_store: Maps FastMCP token JTIs to upstream token IDs
- _refresh_token_store: Refresh token metadata (keyed by token hash)
All state is stored in the configured client_storage backend (Redis, disk, etc.)
enabling horizontal scaling across multiple instances.
Security Considerations
----------------------
- Refresh tokens stored by hash only (defense in depth if storage compromised)
- PKCE enforced end-to-end (client to proxy, proxy to upstream)
- Authorization codes are single-use with short expiry
- Transaction IDs are cryptographically random
@ -281,7 +300,7 @@ Handles provider-specific requirements:
**Methods:**
#### `get_client` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L917" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_client` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L968" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_client(self, client_id: str) -> OAuthClientInformationFull | None
@ -293,7 +312,7 @@ provided to the DCR client during registration, not the upstream client ID.
For unregistered clients, returns None (which will raise an error in the SDK).
#### `register_client` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L933" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `register_client` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L984" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
register_client(self, client_info: OAuthClientInformationFull) -> None
@ -307,7 +326,7 @@ redirect URI will likely be localhost or unknown to the proxied IDP. The
proxied IDP only knows about this server's fixed redirect URI.
#### `authorize` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L982" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `authorize` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1033" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
authorize(self, client: OAuthClientInformationFull, params: AuthorizationParams) -> str
@ -324,7 +343,7 @@ If consent is disabled (require_authorization_consent=False), skip the consent s
and redirect directly to the upstream IdP.
#### `load_authorization_code` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1061" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `load_authorization_code` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1112" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
load_authorization_code(self, client: OAuthClientInformationFull, authorization_code: str) -> AuthorizationCode | None
@ -336,7 +355,7 @@ Look up our client code and return authorization code object
with PKCE challenge for validation.
#### `exchange_authorization_code` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1108" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `exchange_authorization_code` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1159" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
exchange_authorization_code(self, client: OAuthClientInformationFull, authorization_code: AuthorizationCode) -> OAuthToken
@ -354,16 +373,19 @@ Implements the token factory pattern:
PKCE validation is handled by the MCP framework before this method is called.
#### `load_refresh_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1293" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `load_refresh_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1337" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
load_refresh_token(self, client: OAuthClientInformationFull, refresh_token: str) -> RefreshToken | None
```
Load refresh token from local storage.
Load refresh token metadata from distributed storage.
Looks up by token hash and reconstructs the RefreshToken object.
Validates that the token belongs to the requesting client.
#### `exchange_refresh_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1301" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `exchange_refresh_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1366" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
exchange_refresh_token(self, client: OAuthClientInformationFull, refresh_token: RefreshToken, scopes: list[str]) -> OAuthToken
@ -380,7 +402,7 @@ Implements two-tier refresh:
6. Keep same FastMCP refresh token (unless upstream rotates)
#### `load_access_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1515" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `load_access_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1570" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
load_access_token(self, token: str) -> AccessToken | None
@ -399,7 +421,7 @@ The FastMCP JWT is a reference token - all authorization data comes
from validating the upstream token via the TokenVerifier.
#### `revoke_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1571" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `revoke_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1626" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
revoke_token(self, token: AccessToken | RefreshToken) -> None
@ -407,11 +429,12 @@ revoke_token(self, token: AccessToken | RefreshToken) -> None
Revoke token locally and with upstream server if supported.
Removes tokens from local storage and attempts to revoke them with
the upstream server if a revocation endpoint is configured.
For refresh tokens, removes from local storage by hash.
For all tokens, attempts upstream revocation if endpoint is configured.
Access token JTI mappings expire via TTL.
#### `get_routes` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1615" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_routes` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oauth_proxy.py#L1659" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_routes(self, mcp_path: str | None = None) -> list[Route]

4
docs/python-sdk/fastmcp-server-auth-oidc_proxy.mdx
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@ -52,7 +52,7 @@ that is OIDC compliant.
**Methods:**
#### `get_oidc_configuration` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oidc_proxy.py#L367" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_oidc_configuration` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oidc_proxy.py#L373" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_oidc_configuration(self, config_url: AnyHttpUrl, strict: bool | None, timeout_seconds: int | None) -> OIDCConfiguration
@ -66,7 +66,7 @@ Gets the OIDC configuration for the specified configuration URL.
- `timeout_seconds`: HTTP request timeout in seconds
#### `get_token_verifier` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oidc_proxy.py#L384" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `get_token_verifier` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/oidc_proxy.py#L390" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_token_verifier(self) -> TokenVerifier

6
docs/python-sdk/fastmcp-server-auth-providers-azure.mdx
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@ -14,13 +14,13 @@ using the OAuth Proxy pattern for non-DCR OAuth flows.
## Classes
### `AzureProviderSettings` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/azure.py#L29" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `AzureProviderSettings` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/azure.py#L34" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Settings for Azure OAuth provider.
### `AzureProvider` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/azure.py#L62" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `AzureProvider` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/azure.py#L67" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Azure (Microsoft Entra) OAuth provider for FastMCP.
@ -55,7 +55,7 @@ Setup:
**Methods:**
#### `authorize` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/azure.py#L293" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `authorize` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/azure.py#L312" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
authorize(self, client: OAuthClientInformationFull, params: AuthorizationParams) -> str

72
docs/python-sdk/fastmcp-server-auth-providers-discord.mdx Normal file
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@ -0,0 +1,72 @@
---
title: discord
sidebarTitle: discord
---
# `fastmcp.server.auth.providers.discord`
Discord OAuth provider for FastMCP.
This module provides a complete Discord OAuth integration that's ready to use
with just a client ID and client secret. It handles all the complexity of
Discord's OAuth flow, token validation, and user management.
Example:
```python
from fastmcp import FastMCP
from fastmcp.server.auth.providers.discord import DiscordProvider
# Simple Discord OAuth protection
auth = DiscordProvider(
client_id="your-discord-client-id",
client_secret="your-discord-client-secret"
)
mcp = FastMCP("My Protected Server", auth=auth)
```
## Classes
### `DiscordProviderSettings` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/discord.py#L43" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Settings for Discord OAuth provider.
### `DiscordTokenVerifier` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/discord.py#L68" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Token verifier for Discord OAuth tokens.
Discord OAuth tokens are opaque (not JWTs), so we verify them
by calling Discord's tokeninfo API to check if they're valid and get user info.
**Methods:**
#### `verify_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/discord.py#L90" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
verify_token(self, token: str) -> AccessToken | None
```
Verify Discord OAuth token by calling Discord's tokeninfo API.
### `DiscordProvider` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/auth/providers/discord.py#L172" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Complete Discord OAuth provider for FastMCP.
This provider makes it trivial to add Discord OAuth protection to any
FastMCP server. Just provide your Discord OAuth app credentials and
a base URL, and you're ready to go.
Features:
- Transparent OAuth proxy to Discord
- Automatic token validation via Discord's API
- User information extraction from Discord APIs
- Minimal configuration required

13
docs/python-sdk/fastmcp-server-dependencies.mdx
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@ -7,19 +7,19 @@ sidebarTitle: dependencies
## Functions
### `get_context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L33" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `get_context` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L34" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_context() -> Context
```
### `get_http_request` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L45" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `get_http_request` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L46" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_http_request() -> Request
```
### `get_http_headers` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L61" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `get_http_headers` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L62" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_http_headers(include_all: bool = False) -> dict[str, str]
@ -35,7 +35,7 @@ By default, strips problematic headers like `content-length` that cause issues i
If `include_all` is True, all headers are returned.
### `get_access_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L110" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `get_access_token` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/dependencies.py#L111" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
get_access_token() -> AccessToken | None
@ -44,6 +44,11 @@ get_access_token() -> AccessToken | None
Get the FastMCP access token from the current context.
This function first tries to get the token from the current HTTP request's scope,
which is more reliable for long-lived connections where the SDK's auth_context_var
may become stale after token refresh. Falls back to the SDK's context var if no
request is available.
**Returns:**
- The access token if an authenticated user is available, None otherwise.

40
docs/python-sdk/fastmcp-server-proxy.mdx
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@ -7,7 +7,7 @@ sidebarTitle: proxy
## Functions
### `default_proxy_roots_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L523" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `default_proxy_roots_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L533" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_proxy_roots_handler(context: RequestContext[ClientSession, LifespanContextT]) -> RootsList
@ -165,7 +165,7 @@ from_mcp_tool(cls, client: Client, mcp_tool: mcp.types.Tool) -> ProxyTool
Factory method to create a ProxyTool from a raw MCP tool schema.
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L282" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L284" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, arguments: dict[str, Any], context: Context | None = None) -> ToolResult
@ -174,7 +174,7 @@ run(self, arguments: dict[str, Any], context: Context | None = None) -> ToolResu
Executes the tool by making a call through the client.
### `ProxyResource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L301" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyResource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L303" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A Resource that represents and reads a resource from a remote server.
@ -182,7 +182,7 @@ A Resource that represents and reads a resource from a remote server.
**Methods:**
#### `from_mcp_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L321" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_mcp_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L323" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_mcp_resource(cls, client: Client, mcp_resource: mcp.types.Resource) -> ProxyResource
@ -191,7 +191,7 @@ from_mcp_resource(cls, client: Client, mcp_resource: mcp.types.Resource) -> Prox
Factory method to create a ProxyResource from a raw MCP resource schema.
#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L339" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L343" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
read(self) -> str | bytes
@ -200,7 +200,7 @@ read(self) -> str | bytes
Read the resource content from the remote server.
### `ProxyTemplate` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L354" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyTemplate` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L358" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A ResourceTemplate that represents and creates resources from a remote server template.
@ -208,7 +208,7 @@ A ResourceTemplate that represents and creates resources from a remote server te
**Methods:**
#### `from_mcp_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L364" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_mcp_template` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L368" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_mcp_template(cls, client: Client, mcp_template: mcp.types.ResourceTemplate) -> ProxyTemplate
@ -217,7 +217,7 @@ from_mcp_template(cls, client: Client, mcp_template: mcp.types.ResourceTemplate)
Factory method to create a ProxyTemplate from a raw MCP template schema.
#### `create_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L380" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `create_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L386" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_resource(self, uri: str, params: dict[str, Any], context: Context | None = None) -> ProxyResource
@ -226,7 +226,7 @@ create_resource(self, uri: str, params: dict[str, Any], context: Context | None
Create a resource from the template by calling the remote server.
### `ProxyPrompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L415" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyPrompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L423" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A Prompt that represents and renders a prompt from a remote server.
@ -234,7 +234,7 @@ A Prompt that represents and renders a prompt from a remote server.
**Methods:**
#### `from_mcp_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L427" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_mcp_prompt` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L435" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_mcp_prompt(cls, client: Client, mcp_prompt: mcp.types.Prompt) -> ProxyPrompt
@ -243,7 +243,7 @@ from_mcp_prompt(cls, client: Client, mcp_prompt: mcp.types.Prompt) -> ProxyPromp
Factory method to create a ProxyPrompt from a raw MCP prompt schema.
#### `render` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L449" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `render` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L459" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
render(self, arguments: dict[str, Any]) -> list[PromptMessage]
@ -252,14 +252,14 @@ render(self, arguments: dict[str, Any]) -> list[PromptMessage]
Render the prompt by making a call through the client.
### `FastMCPProxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L456" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `FastMCPProxy` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L466" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A FastMCP server that acts as a proxy to a remote MCP-compliant server.
It uses specialized managers that fulfill requests via a client factory.
### `ProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L533" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L543" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A proxy client that forwards advanced interactions between a remote MCP server and the proxy's connected clients.
@ -268,7 +268,7 @@ Supports forwarding roots, sampling, elicitation, logging, and progress.
**Methods:**
#### `default_sampling_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L566" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_sampling_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L576" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_sampling_handler(cls, messages: list[mcp.types.SamplingMessage], params: mcp.types.CreateMessageRequestParams, context: RequestContext[ClientSession, LifespanContextT]) -> mcp.types.CreateMessageResult
@ -277,7 +277,7 @@ default_sampling_handler(cls, messages: list[mcp.types.SamplingMessage], params:
A handler that forwards the sampling request from the remote server to the proxy's connected clients and relays the response back to the remote server.
#### `default_elicitation_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L592" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_elicitation_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L602" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_elicitation_handler(cls, message: str, response_type: type, params: mcp.types.ElicitRequestParams, context: RequestContext[ClientSession, LifespanContextT]) -> ElicitResult
@ -286,7 +286,7 @@ default_elicitation_handler(cls, message: str, response_type: type, params: mcp.
A handler that forwards the elicitation request from the remote server to the proxy's connected clients and relays the response back to the remote server.
#### `default_log_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L611" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_log_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L621" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_log_handler(cls, message: LogMessage) -> None
@ -295,7 +295,7 @@ default_log_handler(cls, message: LogMessage) -> None
A handler that forwards the log notification from the remote server to the proxy's connected clients.
#### `default_progress_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L621" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `default_progress_handler` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L631" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
default_progress_handler(cls, progress: float, total: float | None, message: str | None) -> None
@ -304,7 +304,7 @@ default_progress_handler(cls, progress: float, total: float | None, message: str
A handler that forwards the progress notification from the remote server to the proxy's connected clients.
### `StatefulProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L634" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `StatefulProxyClient` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L644" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A proxy client that provides a stateful client factory for the proxy server.
@ -318,7 +318,7 @@ Note that it is essential to ensure that the proxy server itself is also statefu
**Methods:**
#### `clear` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L655" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `clear` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L665" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
clear(self)
@ -327,7 +327,7 @@ clear(self)
Clear all cached clients and force disconnect them.
#### `new_stateful` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L663" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `new_stateful` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/server/proxy.py#L673" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
new_stateful(self) -> Client[ClientTransportT]

22
docs/python-sdk/fastmcp-tools-tool_transform.mdx
View file

@ -7,7 +7,7 @@ sidebarTitle: tool_transform
## Functions
### `forward` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L37" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `forward` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L38" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
forward(**kwargs: Any) -> ToolResult
@ -36,7 +36,7 @@ tool has args `a` and `b`, and an `transform_args` was provided that maps `x` to
- `TypeError`: If provided arguments don't match the transformed schema.
### `forward_raw` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L67" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `forward_raw` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L68" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
forward_raw(**kwargs: Any) -> ToolResult
@ -62,7 +62,7 @@ y=2)` will call the parent tool with `x=1` and `y=2`.
- `RuntimeError`: If called outside a transformed tool context.
### `apply_transformations_to_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L933" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `apply_transformations_to_tools` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L935" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
apply_transformations_to_tools(tools: dict[str, Tool], transformations: dict[str, ToolTransformConfig]) -> dict[str, Tool]
@ -75,7 +75,7 @@ are left unchanged.
## Classes
### `ArgTransform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L94" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ArgTransform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L95" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Configuration for transforming a parent tool's argument.
@ -137,7 +137,7 @@ ArgTransform(name="new_name", description="New desc", default=None, type=int)
```
### `ArgTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L208" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ArgTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L209" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A model for requesting a single argument transform.
@ -145,7 +145,7 @@ A model for requesting a single argument transform.
**Methods:**
#### `to_arg_transform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L226" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `to_arg_transform` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L227" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
to_arg_transform(self) -> ArgTransform
@ -154,7 +154,7 @@ to_arg_transform(self) -> ArgTransform
Convert the argument transform to a FastMCP argument transform.
### `TransformedTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L232" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `TransformedTool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L233" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
A tool that is transformed from another tool.
@ -171,7 +171,7 @@ inherited from the parent tool but can be overridden or disabled.
**Methods:**
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L259" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `run` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L260" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
run(self, arguments: dict[str, Any]) -> ToolResult
@ -190,7 +190,7 @@ functions.
- ToolResult object containing content and optional structured output.
#### `from_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L364" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `from_tool` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L365" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
from_tool(cls, tool: Tool, name: str | None = None, title: str | NotSetT | None = NotSet, description: str | NotSetT | None = NotSet, tags: set[str] | None = None, transform_fn: Callable[..., Any] | None = None, transform_args: dict[str, ArgTransform] | None = None, annotations: ToolAnnotations | NotSetT | None = NotSet, output_schema: dict[str, Any] | Literal[False] | NotSetT | None = NotSet, serializer: Callable[[Any], str] | NotSetT | None = NotSet, meta: dict[str, Any] | NotSetT | None = NotSet, enabled: bool | None = None) -> TransformedTool
@ -272,7 +272,7 @@ async def custom_output(**kwargs) -> ToolResult:
```
### `ToolTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L887" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `ToolTransformConfig` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L889" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
Provides a way to transform a tool.
@ -280,7 +280,7 @@ Provides a way to transform a tool.
**Methods:**
#### `apply` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L919" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
#### `apply` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/tools/tool_transform.py#L921" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
apply(self, tool: Tool) -> TransformedTool

15
docs/python-sdk/fastmcp-utilities-ui.mdx
View file

@ -28,13 +28,14 @@ Create a complete HTML page with FastMCP styling.
- `content`: HTML content to place inside the page
- `title`: Page title
- `additional_styles`: Extra CSS to include
- `csp_policy`: Content Security Policy header value
- `csp_policy`: Content Security Policy header value.
If empty string "", the CSP meta tag is omitted entirely.
**Returns:**
- Complete HTML page as string
### `create_logo` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L492" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_logo` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L501" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_logo(icon_url: str | None = None, alt_text: str = 'FastMCP') -> str
@ -51,7 +52,7 @@ Create logo HTML.
- HTML for logo image tag.
### `create_status_message` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L507" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_status_message` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L516" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_status_message(message: str, is_success: bool = True) -> str
@ -68,7 +69,7 @@ Create a status message with icon.
- HTML for status message
### `create_info_box` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L530" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_info_box` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L539" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_info_box(content: str, is_error: bool = False, centered: bool = False, monospace: bool = False) -> str
@ -87,7 +88,7 @@ Create an info box.
- HTML for info box
### `create_detail_box` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L559" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_detail_box` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L568" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_detail_box(rows: list[tuple[str, str]]) -> str
@ -103,7 +104,7 @@ Create a detail box with key-value pairs.
- HTML for detail box
### `create_button_group` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L582" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_button_group` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L591" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_button_group(buttons: list[tuple[str, str, str]]) -> str
@ -119,7 +120,7 @@ Create a group of buttons.
- HTML for button group
### `create_secure_html_response` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L600" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
### `create_secure_html_response` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/utilities/ui.py#L609" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
```python
create_secure_html_response(html: str, status_code: int = 200) -> HTMLResponse