"FIRST" matching MCP connectors:

Agent-first onboarding to Smarter Weather: plans, docs, signup, API keys, MCP config, billing.

Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude. Checks eligibility before recommending, explains why each grant fits, and cites the funder's own page on every answer — with an honest "competition_risk: unknown" when the data isn't there. 6 tools: search, fetch, find_opportunities, should_apply, explain_opportunity, complete_profile. Transport: Streamable HTTP. Auth: OAuth 2.1 + PKCE. Free to install, no card required.

AI-first file sharing and collaboration. 251 tools give agents a full workspace: file storage, branded shares, comments, workflows, and built-in RAG. 50GB free, no credit card.

First-party Spanish, Portuguese and Italian property listings with notarial-verified prices.

Agents-first viral-hook engine: generate, score, and remix short-form hooks over MCP.

Brazilian tax intelligence for AI agents. Calculates Fator R (Simples Nacional), validates CNAE codes, proportionalizes first-year companies, projects future tax scenarios, and provides export compliance rules.

Playbook engine: non-dev founders land first paying customer in 60 days or refund

Neutral verified-merchant index for AI shopping agents; regulated/alcohol-first; earned-trust only.

Someone to talk to, for your user: coaches, mentors, accountability partners. First session free.

Eligibility-first UK & EU grant discovery, inside ChatGPT and Claude.

Collaborative, cache-first web search for agents — cited answers from a shared live-web pool.

Agent-first directory for Indians from India in the USA — restaurants, temples, events & more.

Agent-first US business trust registry with neutral Trust Cards and local search.

First production Authority-MCP. W3C VC attested by Jassverband Schweiz.

Signal-first Bitcoin intelligence: sovereign, hiring & hashrate signals over MCP.

Signal-first Bitcoin intelligence over MCP. Surfaces leading, non-price indicators — sovereign reserve adoption, Bitcoin/crypto-infra hiring velocity, and network hashrate trend — each with a 0–100 strength, a direction (tailwind/headwind/neutral), a one-line rationale, and primary sources. Tools: scan_signals, get_hiring_signal, get_sovereign_reserves, get_network_signal, get_daily_brew. Resource: coinbucha://methodology. Information, not financial advice.

Agent-first CAD: editable .kcad.ts source, deterministic review, OpenCASCADE kernel.

Nationalize MCP — nationality prediction from first name (nationalize.io, free, no auth)

Agify MCP — age prediction from first name (agify.io, free, no auth)

Find the safest first AI workflow before investing in AI agents or automation.