"Tools to Enhance Cursor AI Performance" matching MCP connectors:

Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev

Point Gecko at an OpenAPI spec; get first-call-correct, auth-hidden agent tools.

Your DRF API as MCP tools — 1,800 endpoints become 16 dispatchers, permissioned by Django.

Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).

Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.

Create hosted mock REST APIs as tools: seed fake data, import specs, query, write, snapshot. Free.

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

Debug webhooks from your AI agent: inspect and replay captured webhooks on localhost.

API governance for AI agents. Detects breaking changes, scores blast radius, blocks unsafe calls.

Unified gateway exposing 150+ tools across all NexGenData MCP servers via one endpoint.

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.

MCP server that delivers up-to-date Bitrix24 REST API documentation.

An MCP server that provides tools to validate an email address using Dilli Email Validation API.

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

40+ developer tools from Context7, Code Runner, Python Execute, NPM Sentinel, PlantUML, and Microsoft Learn. Docs lookup, code execution, security scanning. Starts at $0.01/call. Get your API key at app.xpay.sh or xpay.tools

Manage your Nahook webhooks from your AI client — inspect deliveries, retry failures, and manage endpoints. Connects over OAuth, no API keys

MCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J.

MCP server for AI access to Swagger by SmartBear.

Search, document and execute authenticated API calls across 500+ apps via one MCP server

A basic MCP server to operate on the Postman API.