"Enhancing Claude-based Code Generation" matching MCP connectors:

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).

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.

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.

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.

Real public holiday lookup for 206 countries via a rule-based calendar engine. Paid via x402.

Statistics for every Finnish postal code area and municipality: income, housing, crime, air quality

China export tax rebate rate & HS code lookup (官方退税率).

Public, read-only access to ~3.9M Romanian companies (data from ONRC, ANAF, and the Ministry of Finance). Five tools: search & filter companies by name, CAEN activity, county, revenue/profit/employee ranges, and VAT status; fetch a company profile by CUI; yearly financial history; public status flags (VAT, insolvency, dissolution, e-Factura); and CAEN activity-code lookup. No authentication required.

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

Check whether a NAICS code aligns with a vertical: a routing-for-review signal, not a determination.

Query US tap-water quality from the EPA's own SDWIS records: the water systems serving a city, contaminants and violations on record (with dates and whether the EPA classifies them as health-based), compare cities, and explain contaminants. Public, no-auth, read-only. ~19,000 cities across all 50 states + DC, ~1.5M EPA records. Every response reports what the EPA recorded, never a safety verdict.

eCFR (Electronic Code of Federal Regulations) MCP.

Argentina CUIT/CUIL validation and AFIP fiscal QR generation. Pure, no-auth MCP tools.

Establishment counts, employment, and payroll by geography and NAICS code from Census CBP

MCP server for Italian tax and fiscal calculations: tax code (Codice Fiscale), IRPEF income tax, INPS social contributions, flat-rate regime (Forfettario), crypto capital gains, and live fiscal deadlines from Agenzia delle Entrate. All data sourced from official Italian law (TUIR, INPS circulars). Free tools + x402 micropayments for live data.

Zippopotam MCP — wraps Zippopotam.us ZIP/postal code API (free, no auth)

Regulatory data API for global product compliance. Returns substance limits (CosIng, REACH, FDA, Prop 65), HS code classification, duty rates, and sanctions screening across 131 countries.

MCP server giving Claude AI access to 22+ NYC public-record databases for real estate due diligence

Norsk regnskap i Claude: bokføring, MVA, lønn og Altinn — spør på vanlig norsk.

UK SIC code lookup, GICS/ICB mapping, and Companies House search. 731 codes, 5.6M companies.