MCP connectors for ChatGPT

Guild Wars 2

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Guild Wars 2 keyless public endpoints (worlds, items, achievements, build, commerce).

Guitar Practice Routine App — Chord Charts

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Look up a guitar chord by name and get a text chord diagram.

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

🐴 Gulltoppr

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Resolve any EVM contract ABI (even unverified, via decompilation), read, simulate, prepare txs.

Gumlet

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Integrate Gumlet into your AI workflows via the Model Context Protocol (MCP).

• Create Asset: An asset refers to a media content/video that is processed, stored, and delivered through Gumlet. This endpoint creates an asset allowing users to ingest media content into the Gumlet sy
• Create Asset Direct Upload: This endpoint creates a video asset allowing to upload of the video from the local file system and ingest media content into the Gumlet system for processing and delivery.B
• Get Asset Details: This endpoint retrieves the details of an asset that has previously been created.

Gunbroker

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GunBroker MCP Pack — wraps the GunBroker firearms-marketplace API.

Guru Remote MCP Server

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Guru MCP Server - Connect AI tools to your Guru knowledge base

Gurufocus

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GuruFocus MCP — wraps the GuruFocus Data API (gurufocus.com/data-api)

GuruHotel product knowledge: direct booking platform for hotels, PMS compatibility and pricing.

Manage your GuruHotel hotel: reservations, revenue, rates, KPIs, traffic and ARI updates (OAuth).

GuruWalk Affiliates

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GuruWalk affiliate program for AI agents.

GuruWalk

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GuruWalk's MCP server lets any AI assistant recommend real free walking tours and activities across 1,000+ cities in 120+ countries.

• Search Tours Activities By Destination: Search a city to explore free walking tours and paid activities on GuruWalk, the world's largest free walking tour platform. Returns destination info, tour cate
• Get Tours Activities By Category: Browse tours and activities within a specific category for a destination on GuruWalk. Categories include free walking tours, food tours, bike tours, day trips, skip-t
• Get Product Availability: Check real-time availability for one or more tours or activities on GuruWalk in a single call. Pass an `items` array — each entry is independent and has its own type, product

Retail media measurement in Gus Dantas's own words.

Gusto

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Run payroll, manage employee benefits, and handle HR compliance.

• Get Company: Retrieves comprehensive business profile information including legal name, business entity type (LLC, Corporation, etc.), EIN, primary contact details, and configured locations. Use this
• Get Compensation: Retrieves full details for a single pay rate record by UUID, including rate amount, payment frequency, FLSA status, and effective date. Use list_job_compensations first to find the c
• Get Contractor: Retrieves full profile for a single contractor by UUID, including name, email, business name (if applicable), payment method, and engagement dates. Use list_contractors first to find t

gutenberg-mcp-server

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MCP server for Project Gutenberg — 75,000+ public-domain ebooks with full plain-text retrieval.

gutendex

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Gutendex MCP — wraps Gutendex API for Project Gutenberg books (free, no auth)

GUTHMANN® Berlin Real Estate

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

guzu

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Guzu tracks your brand's visibility across AI platforms — ChatGPT, Perplexity, Gemini, and Google AI Overviews.

• Get Visibility Score: Get a brand's AI Visibility Score — how visible the brand is across AI platforms (ChatGPT, Perplexity, Gemini, AI Overview). Returns the AI Visibility Index, total citations and
• Get Results By Prompt: Get the brand's AI-visibility results broken down by individual prompt (the tracked queries), plus performance grouped by category. Use this to answer "which specific prompts/qu
• Compare Competitors: Compare the brand's AI visibility against its tracked competitors. Returns the competitor ranking (where the brand sits vs. rivals), overall market position, radar metrics, and pl

Gvnr

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Budget & cost control for AI agents — per-agent spend caps + rate limits before each call.

Collect and submit company incorporation requests for review by GVRN's corpsec team.

Gwas Catalog

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GWAS Catalog (EBI/NHGRI) MCP — curated catalog of genome-wide association studies.

gyibb-mcp

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Cited product-review verdicts from real user voices — free remote MCP, no API key.

Sashimi-grade flash-frozen fish from Thailand.

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.

H1b

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US H-1B visa sponsorship, LCA wages & top sponsors by role — recruiting/talent data

Manage HaasOnline crypto trading bots, labs, backtests and HaasScript across 20+ exchanges.

Hacé Cuentas — Free Calculators

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

hacecuentas

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Run 2,300+ practical calculators (finance, taxes ARCA/SAT, health, sports, cooking, home) from hacecuentas.com.

• Search Calculators: Busca calculadoras de Hacé Cuentas por palabra clave (ej. "imc", "préstamo", "aguinaldo"). Devolvé el slug para usar luego con get_calculator o compute. Opcional: filtrar por categ
• Get Calculator: Devuelve la ficha de una calculadora por slug: qué inputs toma (id, tipo, requerido, valores válidos) y una URL de ejemplo. Usalo antes de compute para saber qué parámetros pasar.
• Compute: Calcula el resultado de una calculadora en vivo. Pasá el slug y un objeto inputs con los campos (ver get_calculator). Opcional lang (es|en|pt). Devuelve el resultado calculado en JSON.

Hacker Bob public records

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Read-only public CVE records, capability metadata, and agent instructions from Hacker Bob.