MCP connectors for ChatGPT

Grimoire

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Grimoire Grimoire turns your TTRPG campaign into a structured, queryable database and knowledge graph and exposes it to any MCP-compatible AI client.

• Add Relationship: [DATABASE TOOL] Create a DATABASE relationship between two entities. Modifies actual FK fields on entity tables or creates rows in junction tables. ✅ AUTO-VISUALIZATION: DB relations
• Add Thread Progression: Record a new progression point for a story thread at a specific session. Only available to GM-role connections. Creates a progression that tracks how a thread advanced, encount
• Add To Entity Graph: [GRAPH VISUALIZATION TOOL] Control which entities appear in a graph (MEMBERSHIP only). This does NOT create relationships - it just adds an entity as a node in the graph. ⚠️ NOT F

Grocery MCP

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Search direct grocery storefronts and create product-link pickup handoffs.

grokipedia-mcp

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Search and retrieve Grokipedia articles with filters, full content, and citations.

• Search: Search for articles in Grokipedia with optional filtering and sorting.
• Get Page: Get complete page information including metadata, content preview, and citations summary.
• Get Page Content: Get only the article content without citations or metadata.

Real-time data API for AI Agents: stocks, weather, forex, logistics, search, scrape, news, IP.

GroundAPI

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Real-time data API for AI Agents.

• Stock Quote: 获取 A 股最新日行情。symbol: 股票代码，如 600519（贵州茅台）。api_key: GroundAPI 密钥。
• Stock List: 获取 A 股股票列表（分页）。market: 市场过滤(sh/sz/bj，留空返回全部)。is_active: 是否在市。page/page_size: 分页参数。api_key: GroundAPI 密钥。
• Stock Search: 按代码或名称搜索 A 股股票。keyword: 搜索关键词，如 '茅台' 或 '600519'。limit: 返回条数(1-50)。api_key: GroundAPI 密钥。

Grounded AEO

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Make any website citable by AI answer engines — and prove the facts came from the owner, not a scrape.

• Get Company Facts: Get the verified fact record for a company by domain from the Grounded AEO catalog. Returns the published (approved) facts with verification state and confidence — the data an AI ag
• Get Fact: Get a single verified fact for a company by domain and fact key (e.g. "tagline", "description").
• Get Llms Txt: Get the auto-generated llms.txt for a cataloged company — a curated, AI-readable guide to the business.

GroundRoute: Web Search for AI Agents across 6 Engines ($10 free credit)

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GroundRoute gives your AI agent web search across six engines (Serper, Brave, Exa, Tavily, Firecrawl, Perplexity) through a single search tool.

• Search: Search the web via GroundRoute. Routes the query to the best-value engine across Brave, Serper, Exa, Tavily, Firecrawl, and Perplexity (price-led), serving cache hits when available. Returns r

Groundtruth — Ask Real Humans

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Human-in-the-loop user research: ask real people what the web can't answer, get verbatim replies

GTH Intelligence - Substance Abuse Treatment Finder

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Search 12,338 curated, SAMHSA-sourced addiction treatment facilities across all 50 US states.

GTH Intelligence — Substance Abuse Treatment Finder

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Search 12,373 SAMHSA-verified substance abuse treatment facilities across all 50 states by zip code, service type, and competitive density.

• Search Facilities: Search for addiction treatment and mental health facilities. Filter by US state, city, treatment type, and insurance. Returns facility names, locations, programs, insurance, phone n
• Get Facility Detail: Get detailed information about a specific treatment facility by name. Returns programs offered, insurance accepted, phone number, website, and a description.
• List States: List all US states that have treatment facility data available, along with the count of facilities in each state. Useful for understanding geographic coverage before searching.

GTM API: LinkedIn MCP Server

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Managed LinkedIn MCP server for AI agents: search, connect, message and enrich on accounts you own.

GTM API: LinkedIn MCP Server

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GTM API is a managed LinkedIn MCP server.

• List Toolsets: List the available toolsets (domains) on this server. Each toolset groups related tools (e.g. linkedin.messaging, id.billing). Start here, then get_toolset_tools to inspect one, then ca
• Get Toolset Tools: List the tools in a toolset. Default (lite) returns name + title + one-line summary; pass verbose:true for full descriptions, safety flags, and parameter names. Run one via call_too
• Call Tool: Execute any tool by name (discovered via get_toolset_tools) with its arguments object. Behaves exactly like calling the tool on its domain mount. Dangerous tools still require the two-step

A read-only verified record of agent-operable GTM tools: search, fetch, compare, track changes.

Guava Wallet Intelligence

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Crypto security, honeypot detection, wallet analysis, and token risk scoring across 31 blockchains.

Guest API for meni.ge restaurants: browse menus, place orders, reserve tables.

Search pwa.directory, submit a progressive web app, and get a payment link a human pays.

Search and read public Gulf Coast Wellness & Recovery Spa pages with source URLs.

GUTHMANN® Berlin Real Estate

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Berlin real estate for AI agents: granular market data and property search, free, by GUTHMANN®.

GYOTAK Fish Market

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Sashimi-grade flash-frozen fish from Pranburi, Thailand.

• Get Catalog: Get GYOTAK's full fish catalog with real-time availability, retail prices (THB/kg), freshness tiers, and traceability records. Retail prices are always included. For registered chat custo
• Search Fish: Search fish by name (Japanese, Thai, or English). Provide lineUserId to include VIP tier pricing.
• Get Contact Info: Get the two ways to buy from GYOTAK, with the contact details for each: retail (order here through place_order, or browse the web shop) and B2B wholesale for restaurants and business

Capability registry for the agentic economy.

Hacé Cuentas — Free Calculators

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Free calculators as MCP tools: finance, taxes, health, units, dates.

Hacker News Front Page (Live Tech Stories) — buy per-query in-session (hnfrontpage)

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Hacker News front page: top stories, points, links.

Hacker News Mcp

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Dive into the latest and greatest from the tech world with our Hacker News MCP server.

Hacker News Trending

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HN front-page, Algolia full-text search, and Show HN launch tracker.

hackernews

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Hacker News MCP — search and retrieve stories from Hacker News

Regulated-firm intelligence for FCA and SEC search, enrichment, relationships and saved workflows.

HadithDB

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Search and retrieve Quran ayahs, tafsir commentary, hadith, and detailed hadith records.

Search Japanese company credit, financials, subsidies, and procurement via AI agents.

Hal Fr

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HAL — French national open research archive

Search, read, and edit your Halite recipe collection and shopping lists.