MCP connectors for ChatGPT

OpenLMNP

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Community: Submitted by a user or imported; check the owner before granting access

Accounting MCP for French LMNP furnished rentals: income, expenses, depreciation, tax return & FEC

openmm-mcp

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MCP server for OpenMM — exposes market data, account, trading, and strategy tools to AI agents

OpenMM MCP

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MCP server for OpenMM — exposes market data, account, trading, and strategy tools to AI agents via Claude Desktop, Claude Code, Cursor, Windsurf, and other…

• Get Ticker: Get real-time price, bid/ask, spread, and volume for a trading pair on a supported exchange
• Get Orderbook: Fetch order book depth (bids and asks) for a trading pair on a supported exchange
• Get Trades: Get recent trades for a trading pair on a supported exchange

Openparliament Ca

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OpenParliament.ca MCP — civic-tech mirror of the Parliament of Canada

openpost

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Manage social publishing workflows through OpenPost

OpenQFR

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Search machine-readable quantitative strategy failure evidence before repeating failed research.

Openreview

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OpenReview MCP — ML conference submissions and reviews (API v2)

Openrouteservice

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Routing, isochrones, matrix, snap, elevation, geocode via Openrouteservice.

Opensea

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Community: Submitted by a user or imported; check the owner before granting access

OpenSea MCP — NFT marketplace data (v2 API)

Opensensemap

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Community: Submitted by a user or imported; check the owner before granting access

openSenseMap MCP — citizen-science environmental sensor network (opensensemap.org)

openshorts

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Community: Submitted by a user or imported; check the owner before granting access

Turn long videos into viral vertical shorts and publish them to TikTok, Instagram and YouTube.

Opensky

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Community: Submitted by a user or imported; check the owner before granting access

OpenSky MCP — OpenSky Network API (free, no auth for anonymous access)

Openstates

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Community: Submitted by a user or imported; check the owner before granting access

OpenStates MCP — bills, legislators, votes in all 50 US states

openstates-mcp-server

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Community: Submitted by a user or imported; check the owner before granting access

Search bills, legislators, committees, and events across all 50 US states, DC, and 5 US territories.

openstatus

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Community: Submitted by a user or imported; check the owner before granting access

Manage monitors, status pages, incidents and maintenances in your openstatus workspace.

openstreetmap-mcp-server

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Community: Submitted by a user or imported; check the owner before granting access

Geocode, reverse geocode, and run Overpass spatial queries on OpenStreetMap data.

openswissdata

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Community: Submitted by a user or imported; check the owner before granting access

Swiss customs (TARES), FINMA registry & NOGA/NACE/ISIC classifications.

Opentargets

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Community: Submitted by a user or imported; check the owner before granting access

Open Targets MCP — disease/target/drug knowledge graph.

Opentopodata

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Community: Submitted by a user or imported; check the owner before granting access

Open Topo Data — global elevation lookups (multiple DEM datasets)

Opentopography

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Community: Submitted by a user or imported; check the owner before granting access

OpenTopography global DEM rasters + point queries (free key)

Opentripmap

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OpenTripMap MCP — wraps the OpenTripMap Places API (dev.opentripmap.org)

openunfurl

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Zero-signup anonymous link-unfurl API.

openvan-travel

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Vanlife & RV travel data.

Openverse

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Community: Submitted by a user or imported; check the owner before granting access

Openverse Creative-Commons image + audio search

Openweather

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OpenWeather MCP — wraps the OpenWeatherMap API (openweathermap.org)

OpenWebSearch

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Community: Submitted by a user or imported; check the owner before granting access

Web search using free multi-engine search (NO API KEYS REQUIRED) — Supports Bing, Baidu, DuckDuckGo, Brave, Exa, Github, Juejin, and CSDN.

• Search: Search the web using multiple engines (e.g., Baidu, Bing, DuckDuckGo, CSDN, Exa, Brave, Juejin(掘金)) with no API key required
• FetchLinuxDoArticle: Fetch full article content from a linux.do post URL
• FetchCsdnArticle: Fetch full article content from a csdn post URL

openworkdays

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Community: Submitted by a user or imported; check the owner before granting access

Zero-signup business-day date-math API: add days, count days between dates, is-business-day.

Operação de Transporte ANTT

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Look up a road freight transport operation registered with Brazil's ANTT by RNTRC and RENAVAM, confi

operant-mcp

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Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.

Ophis MCP

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Gasless, MEV-protected onchain token swaps for AI agents on 14 EVM chains, built on CoW Protocol.