"PostgreSQL MCP (Multi-Version Concurrency Control or specific usage)" matching MCP servers:

Reads the Small Print record: what MCP servers, agent skills and plugins tell an AI agent, hashed every version and diffed between releases, each change graded by a printed rule, with public advisories joined by version. Three read-only tools; nothing is executed.

MCP server that exposes the version history of Russian construction-pricing open data (ФГИС ЦС), enabling queries about dataset versions, salary changes, and republished-but-unchanged exports.

Enables querying official Brazilian Central Bank PTAX dollar closing exchange rates by specific date, date range, or most recent available quotation.

Zero-dependency MCP server for querying Chinese public holidays and makeup workdays (2025-2026), offering tools to check specific dates or list yearly schedules offline.

An MCP server that enables Claude and other LLMs to search and access archived Portuguese web content from Arquivo.pt, including full-text search, image search, version listing, and snapshot retrieval.

Enables discovery and analytics of Polymarket prediction markets, including trending markets, category filtering, text search, market/event details, and API usage tracking.

Enables AI assistants to query Formula 1 sessions, laps, telemetry, stints, pit stops, positions, weather, race control and championship data from the OpenF1 API (2023 onwards), plus composite tools for race summaries, tyre strategies and multi-driver fastest-lap comparisons. It is read-only, caches and throttles requests, and samples or summarizes oversized results so large telemetry payloads stay manageable for the model.

Enables users to look up US residential electricity utilities and plans by ZIP code and usage, then estimate annual bills and rank plans by cost from published tariff data.

A hosted read-only MCP server that enables querying IPVA (vehicle property tax) information from the official SEFAZ Bahia source, with prepaid credit-based usage and no platform credentials.

Enables searching npm packages, retrieving package details and version histories, and fetching download statistics through the npm Registry API.

Provides JSDelivr CDN statistics and package information for npm packages and GitHub repositories, enabling queries on request counts, bandwidth, file listings, and version resolution.

Provides access to Chilean economic indicators (dolar, UF, IPC, etc.) via the mindicador.cl API, enabling queries for current values, historical series, and specific dates.

Enables querying the Brazilian government's transparency portal (Portal da Transparência) to search official public spending and transparency data. Read-only access via natural language from any MCP client, with prepaid pay-per-query usage.

Provides a read-only tool to query ECRVSP Estampagem authorization data from an official source via MCP, with prepaid usage and no credentials.

Provides live press releases from EIN Presswire's public news sitemap, enabling users to fetch the latest releases, search by keywords or geo location, and retrieve specific releases by URL, all without authentication.

Enables querying CVE vulnerability data from the NIST National Vulnerability Database, including CVE lookup, product/version search via CPE filters, CVSS severity scores, and recent high-severity disclosures.

Enables AI assistants to ask what aircraft are flying near a location, track a specific flight's live position, route, aircraft details and photo, and surface emergency-squawking or military aircraft. It exposes four tools (flights_near, track_flight, emergencies, military_aircraft) backed by merged volunteer ADS-B networks and a global snapshot.

Enables retrieving the latest press releases from Newswire.com's public RSS feed, with tools to list recent releases, search within the current window, and fetch specific release details.

Search Wikipedia's ~50,000 Vital Articles from a local index and retrieve article summaries, infobox facts, and specific section text.

MCP server for querying São Paulo's CADIN (municipal credit/debt registration) from official sources. Read-only, works with any MCP client, and requires pre-paid credits for usage.