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

Provides live access to Canadian economic data via the Bank of Canada's Valet API, including exchange rates, policy interest rates, CPI, bond yields, and commodity prices.

Retrieves metadata for Bank of Canada financial data series using the Valet API. Supports keyless access with date parameters in YYYY-MM-DD format.

Verified Singapore property, tax, affordability, salary, and location data for AI agents. 17 MCP tools, x402 micropayments, source provenance on every response. Singapore live now, more markets coming. Categories: Finance, Real Estate, Data, Singapore, x402, Payments, Government Data

Gives Claude direct access to the Africa API for comprehensive data on all 54 African nations, including economic indicators, markets, trade, government, elections, and policies.

Enables searching and retrieving German public procurement notices as normalized JSON, with per-call payment via x402 (USDC on Base) and free sample and stats tools.

MCP server for Azerbaijan's official legal-acts database (e-qanun.az), enabling search, metadata retrieval, and full-text access to legislative and judicial documents.

One-call Australian economic data plumbing via the RBA — cited responses for rates and macro series, not a data broker.

Provides AI agents with Korean national fiscal data (budgets, settlements, and fiscal programs) from multiple government APIs through 7 tools, enabling natural language queries.

A Model Context Protocol server that connects AI assistants to Brazilian public data services, providing access to postal codes, company registrations, bank information, area codes, IBGE data, currency exchange rates, and domain registration status.

MCP server for the Japan National Tax Agency Corporate Number API, enabling corporate number lookup and search via local AI clients.

Query a variety of data from Brasil resources seamlessly. Access information on postal codes, area codes, banks, holidays, taxes, and more through a unified interface. Enhance your AI agents and applications with rich and updated data from BrasilAPI effortlessly.

Integrates the FRED (Federal Reserve Economic Data) API with MCP, enabling AI assistants to retrieve economic time series data such as GDP, inflation, and interest rates.

Free Polish VAT invoice generation MCP server with PDF output and preview. No API key required.

an api wrapper for the us government info api

Enables LLMs to query Brazilian public data such as CEP, CNPJ, DDD, exchange rates, banks, and holidays via the Model Context Protocol.

Consulta registros de uma pessoa ou empresa no Ministério Público do Trabalho (MPT) a partir do CPF ou CNPJ e região, usando uma ferramenta de leitura.

MCP server that lists vehicles registered to a Brazilian CPF or CNPJ, providing read-only national vehicle fleet queries via prepaid credits.

Consulta o número do PIS e dados associados de uma pessoa a partir do CPF, na base do Ministério do Trabalho. Servidor MCP somente leitura, hospedado e pago por consulta.

Enables read-only, natural-language queries of official Brazilian ANP installation records through any MCP-compatible client, with usage billed via prepaid credits.

An MCP server for interacting with the Tripura State Board of Secondary Education API, auto-generated using AG2's MCP builder to enable conversational access to education data.