customization.mdx•3.08 kB
---
title: Customization
icon: pen
---
## Server metadata
You can define the MCP server name and description by modifying:
```python {8-9}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(
app,
name="My API MCP",
description="Very cool MCP server",
)
mcp.mount_http()
```
## Tool and schema descriptions
When creating the MCP server you can include all possible response schemas in tool descriptions by changing the flag `describe_all_responses`, or include full JSON schema in tool descriptions by changing `describe_full_response_schema`:
```python {10-11}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(
app,
name="My API MCP",
description="Very cool MCP server",
describe_all_responses=True,
describe_full_response_schema=True
)
mcp.mount_http()
```
## Customizing Exposed Endpoints
You can control which FastAPI endpoints are exposed as MCP tools using Open API operation IDs or tags to:
- Only include specific operations
- Exclude specific operations
- Only include operations with specific tags
- Exclude operations with specific tags
- Combine operation IDs and tags
### Code samples
The relevant arguments for these configurations are `include_operations`, `exclude_operations`, `include_tags`, `exclude_tags` and can be used as follows:
<CodeGroup>
```python Include Operations {8}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(
app,
include_operations=["get_user", "create_user"]
)
mcp.mount_http()
```
```python Exclude Operations {8}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(
app,
exclude_operations=["delete_user"]
)
mcp.mount_http()
```
```python Include Tags {8}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(
app,
include_tags=["users", "public"]
)
mcp.mount_http()
```
```python Exclude Tags {8}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(
app,
exclude_tags=["admin", "internal"]
)
mcp.mount_http()
```
```python Combined (include mode) {8-9}
from fastapi import FastAPI
from fastapi_mcp import FastApiMCP
app = FastAPI()
mcp = FastApiMCP(
app,
include_operations=["user_login"],
include_tags=["public"]
)
mcp.mount_http()
```
</CodeGroup>
### Notes on filtering
- You cannot use both `include_operations` and `exclude_operations` at the same time
- You cannot use both `include_tags` and `exclude_tags` at the same time
- You can combine operation filtering with tag filtering (e.g., use `include_operations` with `include_tags`)
- When combining filters, a greedy approach will be taken. Endpoints matching either criteria will be included