"Understanding Call Hierarchy in Software Development or Programming" matching MCP connectors:

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

Connect your espresso routine to your AI assistant. This MCP server allows LLMs to act as a personal coffee coach by accessing your shot logs, grinder settings, and active bean inventory. Use it to automatically calculate extraction adjustments, track remaining coffee supply, and lock in winning recipes directly from your chat session.

AI infrastructure design agent. Describe your app in plain English; Riley designs, prices, and deploys AWS or GCP infrastructure with generated Terraform.

MCP server for German & EU law. Verified, citable legal context for any LLM. Daily updates from official sources, hosted in Germany

Universal pay-per-call tool API for AI agents. Web search, price feeds, hive memory, LLM routing, code sandbox. Free tier (10 calls/day, no signup). x402 payments on Base + Solana.

The PropelAuth Integration MCP Server helps you and your favorite AI agent integrate PropelAuth as quickly and easily as possible into your project. Whether you're integrating PropelAuth into your Next.js project or your FastAPI backend, the Integration MCP Server will ensure your AI agent has the best context possible for a successful integration.

Your app's translations in Tolgee: search keys, create translations, trigger machine translation

Pay-per-use tool API for AI agents. Free tier, x402 USDC micropayments, or API key.

Read-only access to NewTqnia news, terminology, and explainers in English and Arabic.

Look up US healthcare providers in the NPPES NPI registry and resolve NUCC specialty codes.

Point-in-time, survivorship-free SEC EDGAR fundamentals + smart-money signals for AI agents.

Scores any web domain's public resilience: TLS, headers, DNS, response time. $0.01/call, no signup.

Search live startup jobs from Claude, Cursor, or ChatGPT via MCP. Free, no account needed.

Query FDA data on drugs, food, devices, and recalls via openFDA. STDIO or Streamable HTTP.

Upload, edit, compress, protect, redact, and compare PDFs with KDAN PDF in Claude and ChatGPT.

Company hierarchy analysis and address verification via MCP

A second opinion for AI agents: one prompt across several live Gonka models + roles, one call.

Convert handwriting into text, LaTeX math, chemistry, or molecular structures.

Korean equities in English: DART filings, activist & foreign-holder classification, KRX news.