"Servers that support Server-Sent Events (SSE)" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
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.
MERCATOR Verify: evidence-backed verification and decision support for autonomous agents.
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools
MCP tool observatory: do registry servers answer, and are their answers true? No key.
Scan any website or MCP server for agent readiness: 0-100 score, a fix per failing check. Free.
Exposes FEDLIN's public security scanners as agent-callable tools over Streamable HTTP.
MCP server: NEED + YIELD + CLEAN-MONEY gates with EIP-3009 attestations · Hive Civilization
Find MCP servers and check whether they actually respond, via live handshake probes.
Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.
Scores any MCP server before you trust it: free quick check, full paid report, 2-5 way compare.
Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.
PQS scores any prompt before the model runs. 8 dimensions. 5 frameworks. Pre-flight, not post-hoc.
MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes
Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.
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.
Adversarial behavioural-bias engine — audits your decisions for cognitive biases via your own AI.
Evaluates UI designs for WCAG accessibility issues automated scanners miss. Paid via x402 on Base.
Cloudflare Workers MCP server: a11y-scorer
MCP server for static security analysis of Android source code
