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Fix documentation to use 'meta' instead of '_meta' for MCP spec field (#2735)

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Jeremiah Lowin 2025-12-25 21:05:11 -05:00 • committed by GitHub
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7 changed files with 24 additions and 24 deletions
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docs/integrations/openapi.mdx
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@ -324,7 +324,7 @@ mcp = FastMCP.from_openapi(
#### OpenAPI Tags in Client Meta
FastMCP automatically includes OpenAPI tags from your specification in the component's metadata. These tags are available to MCP clients through the `_meta._fastmcp.tags` field, allowing clients to filter and organize components based on the original OpenAPI tagging:
FastMCP automatically includes OpenAPI tags from your specification in the component's metadata. These tags are available to MCP clients through the `meta._fastmcp.tags` field, allowing clients to filter and organize components based on the original OpenAPI tagging:
<CodeGroup>
```json {5} OpenAPI spec with tags
@ -344,9 +344,9 @@ FastMCP automatically includes OpenAPI tags from your specification in the compo
async with client:
tools = await client.list_tools()
for tool in tools:
if hasattr(tool, '_meta') and tool._meta:
if tool.meta:
# OpenAPI tags are now available in _fastmcp namespace!
fastmcp_meta = tool._meta.get('_fastmcp', {})
fastmcp_meta = tool.meta.get('_fastmcp', {})
openapi_tags = fastmcp_meta.get('tags', [])
if 'users' in openapi_tags:
print(f"Found user-related tool: {tool.name}")