"Examples of MCPs (Microservices Communication Protocols) That Do Not Require API Keys" matching MCP connectors:

Search and cite US law from official sources, then form an LLC or nonprofit with free agent tools.

Polish law: search statutes (ISAP), court rulings, verify citations. Free tier + paid plans + x402.

US federal contract recompetes with the incumbent named, awards by company, agency spend.

Russian company lookup (EGRUL/INN), Cyrillic search, RU page to Markdown. Pay per call in USDC.

Australian AI governance framework mapped to the Privacy Act and sector laws your AI use triggers.

French & European company registry for AI agents: KYB, sanctions, annual accounts. x402, no API key.

Search 30,000+ decided U.S. security-clearance (DOHA) decisions: cases, outcomes, statistics, and timelines, with a citable link for every answer. CASE is the searchable public record of DOHA industrial security-clearance decisions from 1996 to the present, refreshed nightly.

Cook County / Chicago property by address or PIN: sales, permits, assessments, comps. Pay via x402.

Tesouro em Foco is a free remote MCP server that brings Brazilian government bond (Tesouro Direto) pricing into AI assistants such as Claude, Cursor, and any MCP-compatible client. The engine implements the Brazilian National Treasury's official pricing methodology — validated against 269,000+ real trades — and covers all retail bond types: fixed-rate (LTN, NTN-F), inflation-linked (NTN-B Principal, NTN-B), and retirement/education bonds (Renda+ and Educa+, NTN-B1).

Hosted, zero-install MCP for source-provenanced US federal healthcare provider data. Resolve any NPI or CCN across NPPES, OIG LEIE, SAM.gov, state Medicaid exclusions, PECOS, Care Compare, and Open Payments — every field carries a 14-field provenance contract, with an "excluded or compromised anywhere" check on every lookup.

Search and query government open-data portals (Socrata SODA API).

CPFHub.io is a Brazilian CPF lookup API built for developers. This MCP server lets AI agents query CPF data — including full name, gender, and date of birth — directly from a conversation, without writing any HTTP code. LGPD-compliant · ~300ms response time · 99.9% uptime · 10M+ CPFs queried · works with Claude, Cursor, Windsurf, and any MCP-compatible agent.

Nonpartisan U.S. Congress data: bill decodes, rep lookup, bilingual EN/ES, read-only, no accounts.

A Model Context Protocol server that provides Philippine License to Sell (LTS) verification data to LLMs. Built on Cloudflare Workers with Supabase. Public, read-only, no authentication required. Data sourced from the Department of Human Settlements and Urban Development (DHSUD) License to Sell registry and cross-referenced with published real estate projects on REN.PH.

MCP server for the Philippine Standard Geographic Code (PSGC) API. Gives AI agents structured access to the full PH geographic hierarchy - regions, provinces, cities, municipalities, and barangays.

FR/EN French rental & frontalier tools: zone tendue, DPE, IRL, LAMal, CAF — sourced, dated answers.

UK company data: profiles, iXBRL financials, directors, PSC chains, ECCTA. Hosted, no key.

VA disability rating and compensation calculations, condition lookup, and 38 CFR authority search

US government data (USGS/NOAA/SEC/FDA) with cryptographic proof; x402 pay-per-call, no API key

Free check of a California home for a Proposition 8 property tax reduction, plus owner filing.