API Development MCP Servers

MCP servers for designing, testing and calling APIs — REST, GraphQL, OpenAPI, webhooks and gateways. Each entry is scanned with the deterministic Capability-Flow Trust Model — grades are computed, never self-reported.

Uac Source verified npm
A
uac-mcp-server

MCP server bridge for Unity API Communicator — control Unity Editor from AI agents

API Development Score 100/100 0 findings 13/wk Cap. Minimal
Htag Docs Remote
A
https://api.htagai.com/mcp/v1/servers/htag-docs/mcp

Public HTAG discovery for MCP tools, API endpoints, OpenAPI ops, and agents.

API Development Score 100/100 0 findings Cap. Minimal
Kubova — 3D Container Loading Remote
A
https://kubova.com/mcp

Pack cargo into containers & onto pallets; a verifiable 3D loading plan. Free tier + REST API.

API Development Score 100/100 0 findings Cap. Minimal
Petstore MCP Server Remote
A
https://petstore.run.mcp.com.ai/mcp

Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server

API Development Score 100/100 0 findings Cap. Minimal
unulu Remote
A
https://mcp.unulu.ai/

AI agent website builder. Create and publish link-in-bio sites via MCP or REST API.

API Development Score 100/100 0 findings Cap. Minimal
xAI Docs Remote
A
https://docs.x.ai/api/mcp

Search xAI/Grok API developer documentation; stateless streamable-HTTP server.

API Development Score 100/100 0 findings Cap. Minimal
Orval npm
A
@orval/mcp

Security scan results for the Orval MCP server.

API Development Score 99/100 0 findings 1.9M/wk Cap. Minimal
Azure Devops npm
A
@azure-devops/mcp

MCP server for interacting with Azure DevOps

API Development Score 99/100 0 findings 82k/wk Cap. Minimal
Config Schema npm
A
@gleanwork/mcp-config-schema

Type-safe schemas and builders for MCP client configurations

API Development Score 99/100 0 findings 11k/wk Cap. Minimal
Lark npm
A
@larksuiteoapi/lark-mcp

Feishu/Lark OpenAPI MCP

API Development Score 99/100 0 findings 8.8k/wk Cap. Minimal
Graphql Enhanced npm
A
@letoribo/mcp-graphql-enhanced

Enhanced MCP server for GraphQL with dynamic headers and robust variables parsing — a drop-in replacement for mcp-graphql.

API Development Score 99/100 1 finding 6.7k/wk Cap. Minimal
Middy npm
A
middy-mcp

Middy middleware for Model Context Protocol server

API Development Score 99/100 0 findings 3.3k/wk Cap. Minimal
Gleanwork npm
A
@gleanwork/mcp-server

MCP server for Glean API integration

API Development Score 99/100 0 findings 2.9k/wk Cap. Minimal
Linear 2 implementations
A
best: mcp-server-linear

An MCP server for interacting with Linear's API, providing tools for managing issues, projects, and teams

API Development Best score 99/100 0 findings 2.5k/wk Cap. Minimal
Graphql Tools npm
A
mcp-graphql-tools

GraphQL MCP server for AI assistants

API Development Score 99/100 0 findings 1.3k/wk Cap. Minimal
Llm Vision npm
A
llm-vision-mcp

A TypeScript MCP server that gives text-only LLMs image understanding through StepFun vision models.

API Development Score 99/100 0 findings 1.1k/wk Cap. Minimal
Normi Dvf npm
A
@normi/mcp-dvf

MCP server for French real estate data (DVF) — 17M+ geocoded transactions via Normi API

API Development Score 99/100 0 findings 668/wk Cap. Minimal
Opsgenie npm
A
mcp-opsgenie

MCP server for Opsgenie integration

API Development Score 99/100 0 findings 655/wk Cap. Minimal
Vapi Ai npm
A
@vapi-ai/mcp-server

Vapi MCP Server

API Development Score 99/100 0 findings 601/wk Cap. Minimal
Porkbunllc npm
A
@porkbunllc/mcp-server

Porkbun MCP server — exposes the Porkbun v3 API as tools for AI agents (Claude Desktop, Cursor, etc.)

API Development Score 99/100 0 findings 517/wk Cap. Minimal
Openapi Gen npm
A
@mcpfusion/openapi-gen

OpenAPI-to-MCP mcpfusion Server Generator. Parses OpenAPI 3.x and Swagger 2.0 specs and generates a complete, ready-to-run MCP Server with full MVA tool stacks (Presenters, Tools, Registry, Server) — all features configurable via YAML.

API Development Score 99/100 0 findings 445/wk Cap. Minimal
Mailtea npm
A
mailtea-mcp

Mailtea MCP server — let AI agents send, schedule, and manage email over Model Context Protocol.

API Development Score 99/100 0 findings 432/wk Cap. Minimal
Instantkom npm
A
@instantkom/mcp-server

Model Context Protocol Server for the instantKOM REST API. Lets Claude Code, Claude Desktop and other MCP-compatible AI assistants drive your instantKOM messengerzentrale.

API Development Score 99/100 0 findings 290/wk Cap. Minimal
Findme npm
A
findme-mcp

Official FindMe Photo MCP server. Lets photographers drive wedding gallery operations (create events, upload photos, get analytics) from Claude, ChatGPT, Cursor, and other MCP-compatible AI clients.

API Development Score 99/100 0 findings 266/wk Cap. Minimal