mcp_forge

mcp_forge is a Python framework for building Model Context Protocol (MCP) servers by leveraging FastAPI and FastAPI-MCP to automatically expose FastAPI endpoints as MCP tools, with an emphasis on service-layer abstraction and dependency injection.

Evaluated Mar 30, 2026 (21d ago)
Repo ↗ DevTools mcp fastapi fastapi-mcp tooling python dependency-injection
⚙ Agent Friendliness
47
/ 100
Can an agent use this?
🔒 Security
29
/ 100
Is it safe for agents?
⚡ Reliability
31
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
65
Documentation
70
Error Messages
0
Auth Simplicity
40
Rate Limits
10

🔒 Security

TLS Enforcement
20
Auth Strength
10
Scope Granularity
10
Dep. Hygiene
55
Secret Handling
60

Framework-level security posture is not described (authn/authz, TLS requirements, rate limiting, input validation strategy). Dependency list includes external Git dependency (ttt-video from a git URL), which can increase supply-chain risk without evidence of pinning/verification from the provided manifest snippet.

⚡ Reliability

Uptime/SLA
0
Version Stability
45
Breaking Changes
50
Error Recovery
30
AF Security Reliability

Best When

You already have (or plan to have) a FastAPI service and want a repeatable pattern to expose selected operations as MCP tools.

Avoid When

You need a fully specified production security posture (auth, authorization, throttling) out of the box, or you require strong operational guarantees like documented SLAs and robust retry/idempotency semantics.

Use Cases

  • Converting existing FastAPI microservice endpoints into MCP-callable tools
  • Building standardized internal MCP tool servers across teams
  • Testing tools using mock service implementations while keeping the same endpoint surface
  • Using dependency injection to swap implementations by environment

Not For

  • A turnkey managed MCP hosting/SaaS offering
  • Security-critical deployments without additional authn/authz, rate limiting, and operational controls
  • Use cases requiring complex API protocols beyond HTTP/FastAPI-style endpoints

Interface

REST API
Yes
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

OAuth: No Scopes: No

README does not describe authentication/authorization mechanisms for the FastAPI/MCP endpoints.

Pricing

Free tier: No
Requires CC: No

Open-source framework (MIT license per repository metadata). No pricing model described.

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • Auth, rate limiting, and structured error contracts are not documented in the provided README—agents should not assume robust API safety/limits.
  • Tool inclusion is manual via include_operations; omitting operation_id/include_operations may result in missing tools in the MCP server.
  • operation_id naming matters for MCP tool names; relying on defaults may produce awkward names.

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Scores are editorial opinions as of 2026-03-30.

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