"Using Server-Sent Events (SSE) in the Terminal" matching MCP connectors:
Matching Connector Tools:
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
Check that your AI is being logical. Free tool that mathematically catches contradictions in agent reasoning. No account needed. Also offers paid guardrails that converts natural language to formal verification proofs, that anyone can check succinctly.
Rule engine with built-in simulation. 55 MCP tools for complete business rule lifecycle management.
Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.
Runs your code against a contract; returns HELD or BROKE at the exact input. Deterministic.
Test the voice agents you run: scored transcripts, pass/fail verdicts, latency and WER metrics.
Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.
MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes
Adversarial behavioural-bias engine — audits your decisions for cognitive biases via your own AI.
PQS scores any prompt before the model runs. 8 dimensions. 5 frameworks. Pre-flight, not post-hoc.
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.
MCP server for e-mail testing: create disposable inboxes, wait for delivery, and extract e-mail content or links - all from your AI agent or test automation workflow. Get a free API key on https://app.zyntra.app/
MCP server: NEED + YIELD + CLEAN-MONEY gates with EIP-3009 attestations · Hive Civilization
Pre-commit code quality guardian. Detects semantic drift in AI-generated code.
The world's first named AI prompt quality score. Score, optimize, and compare LLM prompts before they hit any model. Free tier available. Built on PEEM, RAGAS, G-Eval, and MT-Bench frameworks. x402-native on Base.
Evaluates UI designs for WCAG accessibility issues automated scanners miss. Paid via x402 on Base.
MCP server for static security analysis of Android source code
Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.
Drive OctoPerf load testing from any AI agent — import, edit, validate, run scenarios, read metrics. Hosted remote server, OAuth 2.1 (DCR + PKCE), no API key.