"Understanding Call Hierarchy in Software Development or Programming" 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.
Create and manage test cases, test runs and results in Testiny from your AI assistant.
Scan URLs or HTML for WCAG 2.2 accessibility violations. 75-rule manifest, severity-weighted score, shareable HTML/CSV/JSON reports. Tools: scan_url, scan_html, get_report, list_rules.
Parse WebVTT, SRT, or TTML for conformance, timing, overlaps, line length, and reading speed.
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.
A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.
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.
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).
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
Rule engine with built-in simulation. 55 MCP tools for complete business rule lifecycle management.
Load testing and synthetic monitoring platform: test with Playwright, Browser Bot, or Protocol Bots.
Generate synthetic random user data for testing, demos, and development without using real persona.
Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.
Review frontend code and live pages against 386 quality-gated web development rules.
Talk with Upforge Echo, compare services and proof, or request a human-approved project review.
Scan URLs or HTML for WCAG 2.2 violations. 75-rule manifest, weighted score, shareable reports.
Web search, email verify, KYC, sanctions, stocks, SEC, crypto, news, data: 63 pay-per-call tools
Guardrails for LLM output: pass / fail / review verdicts and one recommended action. Hosted or npm.
Runs your code against a contract; HELD or BROKE at the exact input. Deterministic. 0.10 USDC/call.
Write Polyxd UI documents, check them, and show them as real screens in any design-system pack.
