"An open-source e-commerce platform" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Check an A2A agent before you delegate, or an MCP server's measured conduct. Free, no key.
Behind Second Look (preview): a shop's product page as clean data, source checks, price history.
Diagnose why an AI agent failed and get the verified fix instantly. Free, no token.
QA platform for agents: coverage signals, in-repo test plans, verified tests and release governance.
Uxia brings AI user testing, usability testing and UX research into ChatGPT. It helps product managers, UX designers, researchers and developers evaluate websites, interactive prototypes and digital product experiences using AI-simulated users. Explore potential usability problems, investigate friction in user journeys and use findings to guide product and design improvements.
An open-source benchmark of how well LLMs solve nonogram puzzles, from 5x5 to 20x20.
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
Load testing and synthetic monitoring platform: test with Playwright, Browser Bot, or Protocol Bots.
Assign Linear, Jira or GitHub issues to an AI coding agent team that plans, builds, reviews, tests.
Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.
Does an MCP server work for a stock client? By registry name or URL. Tool drift too. Free, no key.
Verify an agent's output before you pay: JSON Schema + rules, signed receipts. Free during launch.
Check an online store's product catalog before you import it or send it to a shopping feed.
What is known to be broken in an MCP server or API operation, with the check that found it.
Pay-per-call MCP server. Vetted human experts review AI-generated content (text, images, video, audio, social posts), audit reasoning chains, run prepublish safety checks, and gate high-stakes actions for human approval. 7 paid tools at $1.00 each plus 4 free tools (list_offerings, list_expert_profiles, get_result, verify_certificate). Payment via x402, USDC on Base mainnet. Approved outputs receive an on-chain Taste content certificate downstream agents verify before consuming.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Probe a signup URL you own and score whether an AI agent can sign up unaided.
Checks the structural integrity of translated resource dictionaries against a source dictionary y...
Test an email before it goes out: a disposable address, 41 checks with RFC citations, a fix plan.
Resolve whether an uncertain side-effecting action completed before software retries it.
