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Use ergonomic provider initialization pattern #2675

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Merged
jlowin merged 1 commit into from
Dec 22, 2025
Merged

Use ergonomic provider initialization pattern #2675

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4 changes: 1 addition & 3 deletions examples/providers/sqlite/server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -101,10 +101,8 @@ def _make_tool(self, row: aiosqlite.Row) -> ConfigurableTool:
)


mcp = FastMCP("DynamicToolsServer")

provider = SQLiteToolProvider(db_path=str(DB_PATH))
mcp.add_provider(provider)
mcp = FastMCP("DynamicToolsServer", providers=[provider])


@mcp.tool
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11 changes: 3 additions & 8 deletions src/fastmcp/server/openapi/server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,7 @@

client = httpx.AsyncClient(base_url="https://api.example.com")
provider = OpenAPIProvider(openapi_spec=spec, client=client)

mcp = FastMCP("My API Server")
mcp.add_provider(provider)
mcp = FastMCP("My API Server", providers=[provider])
"""

from __future__ import annotations
Expand Down Expand Up @@ -55,9 +53,7 @@ class FastMCPOpenAPI(FastMCP):

client = httpx.AsyncClient(base_url="https://api.example.com")
provider = OpenAPIProvider(openapi_spec=spec, client=client)

mcp = FastMCP("API Server")
mcp.add_provider(provider)
mcp = FastMCP("API Server", providers=[provider])
```
"""

Expand Down Expand Up @@ -94,8 +90,7 @@ def __init__(
warnings.warn(
"FastMCPOpenAPI is deprecated. Use FastMCP with OpenAPIProvider instead:\n"
" provider = OpenAPIProvider(openapi_spec=spec, client=client)\n"
" mcp = FastMCP('name')\n"
" mcp.add_provider(provider)",
" mcp = FastMCP('name', providers=[provider])",
DeprecationWarning,
stacklevel=2,
)
Expand Down
4 changes: 1 addition & 3 deletions src/fastmcp/server/providers/openapi/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,9 +10,7 @@

client = httpx.AsyncClient(base_url="https://api.example.com")
provider = OpenAPIProvider(openapi_spec=spec, client=client)

mcp = FastMCP("API Server")
mcp.add_provider(provider)
mcp = FastMCP("API Server", providers=[provider])
```
"""

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8 changes: 2 additions & 6 deletions src/fastmcp/server/server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2788,9 +2788,7 @@ def from_openapi(
tags=tags,
timeout=timeout,
)
server = cls(name=name, **settings)
server.add_provider(provider)
return server
return cls(name=name, providers=[provider], **settings)

@classmethod
def from_fastapi(
Expand Down Expand Up @@ -2847,9 +2845,7 @@ def from_fastapi(
tags=tags,
timeout=timeout,
)
server = cls(name=server_name, **settings)
server.add_provider(provider)
return server
return cls(name=server_name, providers=[provider], **settings)

@classmethod
def as_proxy(
Expand Down
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