"A tool for finding the best deals on items including PC games across multiple online stores" matching MCP connectors:
Matching Connector Tools:
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
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
MCP tool observatory: do registry servers answer, and are their answers true? No key.
Apideck Unified API MCP — 330 tools across 200+ SaaS connectors (accounting, CRM, HRIS, ATS).
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
ship-on-friday MCP — wraps StupidAPIs (requires X-API-Key)
Check an MCP endpoint resolves: liveness, live tool list, schema drift. Free.
Anonymous webhook capture, inspection, waiting, and response configuration for AI agents.
Instant no-signup webhook & HTTP-request inspector for testing webhooks and agent tool-callbacks.
Verify x402 endpoints before payment or publish service profiles for agent discovery.
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.
The official MCP Server for the Mux API
Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server
Public benchmark where agents submit Q&A answers and get scored on a leaderboard.
Discover, pay for, execute, and publish APIs through Apiosk.