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Publish docs for v3.2.0 (#3713)

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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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Fix auto-close MRE script posting comment without closing (#3386)
Fix WorkOS token scope verification bypass 🤖 Generated with Codex (#3407)
Fix initialize McpError fallthrough 🤖 Generated with Codex (#3413)
Fix transform arg collisions with passthrough params (#3431)
Fix get_* returning None when latest version is disabled (#3439)
Fix get_* returning None when latest version is disabled (#3421)
Fix server lifespan overlap teardown (#3415)
Fix $ref output schema object detection regression (#3420)
resolved annotations (#3429)
Fix async partial callables rejected by iscoroutinefunction (#3438)
Fix async partial callables rejected by iscoroutinefunction (#3423)
fix: add version to components (#3458)
fix: use intent-based flag for OIDC scope patch in load_access_token (#3465)
Fixes #3461
fix: normalize Google scope shorthands and surface valid_scopes (#3477)
fix: resolve ty 0.0.23 type-checking errors and bump pin (#3481)
fix: shield lifespan teardown from cancellation (#3480)
fix: forward custom_route endpoints from mounted servers (#3462)
fix updates _get_additional_http_routes() to traverse providers,
Fixes #3457
fix: remove hardcoded version from CLI help text (#3456)
fix: monty 0.0.8 compatibility, drop external_functions from constructor (#3468)
fix: task test teardown hanging 5s per test (#3499)
Closes #3498
fix: validate workspace path is a directory before cursor install (#3440)
Fixes #3426
fix: handle re.error from malformed URI templates in build_regex (#3501)
fix: reject empty/OIDC-only required_scopes in AzureProvider (#3503)
fix: restrict $ref resolution to local refs only (SSRF/LFI) (#3502)
fix warnings and timeouts (#3504)
close upgrade check issue when build passes (#3505)
Closes #3484
fix: URL-encode path params to prevent SSRF/path traversal (GHSA-vv7q-7jx5-f767) (#3507)
fix: prevent path traversal in skill download (#3493)
fix: prefer IdP-granted scopes over client-requested scopes in OAuthProxy (#3492)
fix: remove unrelated transform and http.py changes from PR scope
fix: remove forced follow_redirects from httpx_client_factory calls (#3496)
fix: stop passing follow_redirects to httpx_client_factory
fix: restore follow_redirects=True for custom httpx client factories
Closes #3509
fix: CSRF double-submit cookie check in consent flow (#3519)
fix: validate server names in install commands (#3522)
fix: use raw strings for regex in pytest.raises match (#3523)
fix: reject refresh tokens used as Bearer access tokens (#3524)
fix: route ResourcesAsTools/PromptsAsTools through server middleware (#3495)
fix: resolve Pyright "Module is not callable" on @tool, @resource, @prompt decorators (#3540)
fix: filter warnings by message in KEY_PREFIX test (#3549)
fix: suppress output schema for ToolResult subclass annotations (#3548)
fix: increase sleep duration in proxy cache tests (#3567)
fix: store absolute token expiry to prevent stale expires_in on reload (#3572)
fix: preserve tool properties named 'title' during schema compression (#3582)
Fix loopback redirect URI port matching per RFC 8252 §7.3 (#3589)
Fix app tool routing: visibility check and middleware propagation (#3591)
Fix query parameter serialization to respect OpenAPI explode/style settings (#3595)
Fix dev apps form: union types, textarea support, JSON parsing (#3597)
fix(google): replace deprecated /oauth2/v1/tokeninfo with /oauth2/v3/userinfo (#3603)
fix: resolve EntraOBOToken dependency injection through MultiAuth (#3609)
fix(docs): correct misleading stateless_http header (#3622)
fix: filesystem provider import machinery (#3626)
Closes #3625 (issues 2, 3, 6)
fix: recover StdioTransport after subprocess exits (#3630)
fix(server): preserve mounted tool task metadata (#3632)
fix: scope deprecation warning filter to FastMCPDeprecationWarning (#3649)
fix imports, add PrefabAppConfig (#3650)
fix: resolve CurrentFastMCP/ctx.fastmcp to child server in mounted background tasks (#3651)
Fix blocking docs issues: chart imports, Select API, Rx consistency (#3652)
closed by default (#3657)
Fix prompt caching middleware missing wrap/unwrap round-trip (#3666)
fix: serialize object query params per OpenAPI style/explode rules (#3662)
Fixes #2857
fix: HTTP request headers not accessible in background task workers (#3631)
fix: restore HTTP headers in worker execution path for background tasks (#3681)
fix: strip discriminator after dereferencing schemas (#3682)
fix: remove stale ty:ignore directives for ty 0.0.26 (#3684)
Fix docs gaps in app provider pages (#3690)
fix: dev apps log panel UX improvements (#3698)
fix dev server empty string args (#3700)
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5
docs/cli/install-mcp.mdx
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@ -65,6 +65,7 @@ See [Server Configuration](/deployment/server-configuration) for the full config
| Python | `--python` | Python version (e.g., `3.11`) |
| Project | `--project` | Run within a uv project directory |
| Requirements | `--with-requirements` | Install from a requirements file |
| Config Path | `--config-path` | Custom path to Claude Desktop config directory (`claude-desktop` only) |
## Examples
@ -92,6 +93,10 @@ fastmcp install cursor server.py --env-file .env
fastmcp install claude-desktop server.py \
--python 3.11 \
--with-requirements requirements.txt
# With custom config path (claude-desktop only)
fastmcp install claude-desktop server.py \
--config-path "C:\Users\username\AppData\Local\Packages\Claude_xyz\LocalCache\Roaming\Claude"
```
## Generating MCP JSON

1
docs/cli/overview.mdx
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@ -18,6 +18,7 @@ fastmcp --help
| Command | What it does |
| ------- | ------------ |
| [`run`](/cli/running) | Run a server (local file, factory function, remote URL, or config file) |
| [`dev apps`](/cli/running#previewing-apps) | Launch a browser-based preview UI for Prefab App tools |
| [`dev inspector`](/cli/running#development-with-the-inspector) | Launch a server inside the MCP Inspector for interactive testing |
| [`install`](/cli/install-mcp) | Install a server into Claude Code, Claude Desktop, Cursor, Gemini CLI, or Goose |
| [`inspect`](/cli/inspecting) | Print a server's tools, resources, and prompts as a summary or JSON report |

25
docs/cli/running.mdx
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@ -96,6 +96,31 @@ By default, `fastmcp run` uses your current Python environment directly. When yo
The `--skip-env` flag is useful when you're already inside an activated venv, a Docker container with pre-installed dependencies, or a uv-managed project — it prevents uv from trying to set up another environment layer.
## Previewing Apps
<VersionBadge version="3.2.0" />
`fastmcp dev apps` launches a browser-based preview UI for servers with [Prefab App tools](/apps/prefab). It starts your MCP server on one port and a local dev UI on another — giving you a live, interactive picker where you can call app tools and see their rendered output without needing a full MCP host client.
```bash
fastmcp dev apps server.py
fastmcp dev apps server.py:mcp --mcp-port 9000 --dev-port 9090
```
The picker auto-generates a form from each tool's input schema. Submit the form and the result opens in a new tab as a rendered Prefab UI.
Auto-reload is on by default — save a file and the MCP server restarts automatically.
<Tip>
`fastmcp dev apps` requires `fastmcp[apps]` — install with `pip install "fastmcp[apps]"`.
</Tip>
| Option | Flag | Description |
| ------ | ---- | ----------- |
| MCP Port | `--mcp-port` | Port for the MCP server (default: `8000`) |
| Dev Port | `--dev-port` | Port for the dev UI (default: `8080`) |
| Auto-Reload | `--reload` / `--no-reload` | Watch for file changes (default: on) |
## Development with the Inspector
`fastmcp dev inspector` launches your server inside the [MCP Inspector](https://github.com/modelcontextprotocol/inspector), a browser-based tool for interactively testing MCP servers. Auto-reload is on by default, so your server restarts when you save changes.