"An email protocol for sending and receiving messages" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
The OpenRouter MCP server plugs OpenRouter into the AI tools you already use. Once connected, your assistant can pull live OpenRouter data (models, prices, your credits, rankings, and docs) and send quick test messages, all without leaving your editor.
Scan and fix email auth (SPF, DMARC, DKIM, MX, blacklists, expiry) + DNS checks. Validated fixes.
Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.
MCP server for generating rough-draft project plans from natural-language prompts.
IBGE: geography, census, economy and health from the official APIs, with provenance. 21 tools.
Check internet providers, plans, speeds, and known pricing at a specific U.S. street address.
Agentic Finance: 500+ tools for AI agents over x402 or MPP, free via PoW, or prepaid card credits
The vetted, cross-LLM marketplace of doer agents — itself an MCP server.
Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting
Helena Bioinformatics MCP for clinical variant interpretation, ACMG/AMP evidence and literature.
Sales intelligence for B2B SMEs — lead scoring, ICP fit, CRM enrichment & writeback.
Live power, energy, grid, gas, fiber & data-center site-selection infrastructure — query and cite.
Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.
Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.
Get recommended by Amazon's AI. Hosted MCP server for Amazon listing compliance & generation.
Search domain availability and pricing, straight from chat, then open a link to register.
Free: turn your AI chats into spaced-repetition vocabulary. 13 tools, reads and writes.
Free, open MCP server for The Urantia Papers. 197 papers, 14,500+ paragraphs, 4,400+ entities.
MCP server for Brazilian Federal Senate open data (legislative, administrative, e-Cidadania).
Accessibility and WCAG data for your own websites: fix lists, live checks, and fix validation.
