openapi-to-mcp-server

A Go utility/package that consumes OpenAPI specifications and generates code for an MCP (Model Context Protocol) server.

Evaluated Apr 04, 2026 (16d ago)
Repo ↗ DevTools go openapi code-generation mcp model-context-protocol api-integration
⚙ Agent Friendliness
30
/ 100
Can an agent use this?
🔒 Security
32
/ 100
Is it safe for agents?
⚡ Reliability
18
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
35
Documentation
20
Error Messages
0
Auth Simplicity
80
Rate Limits
10

🔒 Security

TLS Enforcement
40
Auth Strength
30
Scope Granularity
30
Dep. Hygiene
30
Secret Handling
30

No security guidance is present in the provided README/metadata. Generated MCP servers that call upstream APIs may require TLS verification, careful handling of API keys/OAuth tokens, and safe logging to avoid leaking secrets. Dependency and build hygiene cannot be assessed from the provided information.

⚡ Reliability

Uptime/SLA
0
Version Stability
20
Breaking Changes
30
Error Recovery
20
AF Security Reliability

Use Cases

  • • Generate an MCP server from an existing OpenAPI spec to expose API operations as MCP tools
  • • Bootstrap an agent integration layer from API contracts (OpenAPI)
  • • Reduce manual work translating REST/OpenAPI endpoints into MCP tool definitions

Not For

  • • Serving production traffic directly (it appears to be a code-generation tool, not a managed API service)
  • • Projects needing an already-hosted MCP endpoint without running generation tooling
  • • Security/compliance-sensitive deployments without reviewing generated code and templates

Interface

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

Authentication

OAuth: No Scopes: No

No authentication mechanism is described in the provided README/metadata. As a generator, auth would depend on the generated MCP server and how it calls upstream APIs.

Pricing

Free tier: No
Requires CC: No

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • ⚠ Generated MCP tool definitions and schemas may not perfectly match upstream API behavior (edge cases, polymorphism, auth flows) without validation against your OpenAPI specs.
  • ⚠ Because the repo README is minimal, expected runtime behavior, transport configuration, and error formats for the resulting MCP server cannot be confirmed from the provided materials.

Alternatives

Use an existing MCP server implementation tailored to your API Manually implement MCP tool mappings for critical APIs Convert OpenAPI to an intermediate client/SDK first, then wrap SDK calls behind an MCP server

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Scores are editorial opinions as of 2026-04-04.

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