"Most downloaded items or content" 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.
Parse WebVTT, SRT, or TTML for conformance, timing, overlaps, line length, and reading speed.
Evidence-gated task verification for AI agents. Decompose goals into acceptance criteria, attach proof (screenshot, curl, file), independent LLM judge accepts or rejects. 24 tools. Hosted remote MCP (streamable-http, OAuth 2.1 + DCR).
Load testing and synthetic monitoring platform: test with Playwright, Browser Bot, or Protocol Bots.
Score any URL against a real design contract — 42 checks, A-F grade, token + motion validation.
Simulated people test your pages, copy and sign-up flows, and say why they would leave.
Test curl retries locally or inspect remote 429/503 Retry-After traces; optionally share findings.
Runs your code against a contract; HELD or BROKE at the exact input. Deterministic. 0.10 USDC/call.
What is known to be broken in an MCP server or API operation, with the check that found it.
Pay per call via HTTP 402: 5 site audits + 65 /work jobs as MCP tools and A2A skills, receipts
Explore Upforge services and evidence, or submit a prototype for a human-approved static fit check.
Compare a website before and after a migration: missing pages, content changes, visual diffs.
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.
Compare two versions of a JSON row list: what was added, removed or changed, field by field.
Checks whether generated Minecraft Bedrock content will actually load. Nine read-only tools.
Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.
Hire a real human for real-world verification, product testing, AI output review, and errands.
Check what a paid x402 endpoint or MCP server delivered, from probes anyone can repeat.
Deterministic operations reconciliation for AI agents: COMPLETE, INCOMPLETE, or NEEDS_REVIEW.
