"Using PostgreSQL with n8n Workflow Automation" matching MCP servers:

Integrates Eurostat quality-of-life metrics and real-time job searching to help users find international internships in high-ranking European cities. It enables ranking cities based on personalized criteria like safety or transport and retrieves structured internship listings via the Tavily API.

Exposes 26 structured analytical tools over Climate Finance Update datasets, enabling fund-level financial analysis, portfolio aggregations, and data quality diagnostics without requiring the client to write data access code.

MCP server for accessing India's Ministry of Statistics and Programme Implementation (MoSPI) data APIs. Enables natural language queries for economic, demographic, and social indicators via a 4-tool workflow.

Enables AI agents to research U.S. companies and associated people using official state registries and free regulatory datasets, with normalized evidence and optional browser automation.

A production-grade MCP server for querying U.S. Census Bureau data (ACS 5-Year and Decennial) with tools for geographic fuzzy matching, variable search, and batched data retrieval, backed by a PostgreSQL cache for performance.

MCP server for maintaining specific Wikidata items (person, company, publications) with read tools and a two-step write workflow that enforces sourced, human-approved batch edits.

Enables answering US economic questions by searching, fetching, and comparing FRED data series through a supervised multi-agent workflow with built-in safety and cost controls.

Enables spatial analysis of large remote GeoParquet files directly from object storage without downloading or importing data, using DuckDB's predicate and projection pushdown to answer queries efficiently.

MCP server that resolves postal/ZIP codes to place names, states, and coordinates using Zippopotam.us. Free, no API key required.

Enables real-time domain registration lookups via RDAP, including availability, expiration, and registrar details, with no API key required. Supports natural language queries like 'is example.com available?' or 'when does example.com expire?'.

Enables AI agents to query US public company financial data from SEC filings, with tools for resolving tickers, listing filings, retrieving financial concepts, comparing companies, extracting filing sections, and full-text search. It surfaces data ambiguities like tag variations, restatements, and fiscal-year misalignment rather than hiding them.

Enables querying the Urban Institute's Education Data Portal — harmonized federal data on schools, school districts, and colleges — through a discovery-first set of tools that search and describe datasets, fetch raw records or aggregated statistics, decode coded values, and resolve institution names to IDs, with no API key required and read-only access to the live API.

Enables MCP clients to read and search Brazilian municipal official gazettes from the Querido Diário public API, including resolving cities by name or IBGE ID and full-text gazette searches with filters.

Source-backed hardware end-of-life (EOL/EOSL) lookups by part number for enterprise gear — support status, end-of-sale and end-of-support dates, with the vendor's own bulletin URL on every answer. Unknown parts return found:false, never a guess.

An MCP server that gives Claude access to Canada's public procurement data from CanadaBuys, enabling search for tenders, awards, and spend summaries with traceable sources. It provides five tools: search_tenders, get_tender, search_awards, summarize_spend, and export_report.

Enables AI agents to answer civic questions about Virginia state, county, and municipal public data, including zoning, parcel, boundary, and Code of Virginia lookups, with provenance on every answer.

Enables LLM agents to retrieve normalized US-GAAP financial statements from SEC EDGAR—income statement, balance sheet, and cash flow—with point-in-time as-reported figures and per-value SEC source provenance for citation.

MCP server for searching Korean public procurement bid notices (나라장터) using natural language.

Search and read recipes from the English Wikibooks Cookbook, with tools to rescale ingredient lists to a target number of servings.

Enables natural language queries about Swiss mandatory health insurance coverage for medications and medical devices using official BAG lists.