"Feishu - A Collaboration and Messaging Platform" matching MCP connectors:

Workflow planning, recovery checkpoints, coordination, fixtures, and compatibility tools for agents.

Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.

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

Design-system contract verification, scoring, and review tools for AI agents.

Find MCP servers and check whether they actually respond, via live handshake probes.

A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.

Voice-powered bug reporting with 13 MCP tools. Record bugs by talking; let AI find and fix them.

Give AI coding agents access to your Vynix visual feedback, bug reports, and AI diagnosis.

Read-only, deterministic AI triage and readiness tools implementing Sophon's published rubrics.

Estimated game fps for any GPU or Apple Silicon chip, with the limiter and tweaks.

Pre-execution governance for AI agents. Deterministic PASS/FAIL/REVIEW verdicts, replayable proof.

Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.

Hire a real human for real-world verification, product testing, AI output review, and errands.

Promotion gate for AI agents: leakage audits, exact-statistics verdicts, and a live report card.

One-cent x402 and MCP readiness checks plus fixed-price marketplace launch packs.

Runs your code against a contract; returns HELD or BROKE at the exact input. Deterministic.

Generate deterministic placeholder image URLs and packs for docs, staging, testing, and AI agents.

Test the voice agents you run: scored transcripts, pass/fail verdicts, latency and WER metrics.

Machine-readable taxonomy of 100+ AI system failure modes spanning factuality, alignment, planning, code generation, and instruction following.

MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes