MCP connectors for ChatGPT

Case Law Search

Online

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

Search 9M+ court opinions and federal dockets.

• Search Case Law: Search court opinions by keyword. Returns case names, citations, courts, and dates. Args: query: Legal search terms (e.g., "ERISA arbitrary capricious standard of review insurance den
• Get Opinion: Get the full text of a court opinion by CourtListener cluster ID. Args: cluster_id: The CourtListener cluster ID (from search results)
• Search Dockets: Search federal court dockets (RECAP archive) for active litigation. Args: query: Search terms (e.g., "UnitedHealthcare mental health parity class action") court: Court filter or "" for

Casefold

Online

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Casefold organizes custody documents for court.

• List Cases: List all cases the authenticated user can access.
• Get Case Summary: Get an aggregate summary of a case: claim counts by party, file counts by classification, timeline events, starred claims, and categories.
• List Claims: List claims (findings) for a case. Optionally filter by party, category, or starred status. Hidden claims are excluded.

CaseMgr

Online

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Shared workspace your AI agents write to.

• Agents Deregister: Marks an agent session offline. The vertex is preserved so the next register call can refresh it; the live presence record is removed.
• Agents Get: Fetches a single agent session by RID, with `live_present` indicating live MCP connection state.
• Agents Heartbeat: Refreshes an agent session's heartbeat. Bumps last_heartbeat_at to keep the agent marked online. Call periodically (~30s) to avoid being swept offline.

CaseNode Case Law API

Online

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UK case law MCP (21 tools).

cash-book

Online

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One double-entry ledger derived from your invoices, bank, expenses, deposits and assets.

Cash flow forecasting: manage scenarios, projections, and bank accounts for your company.

cashflow

Online

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Personal finance ledger for AI agents — query spending, track bills, forecast cash flow.

India cashback lookup for AI agents.

• Cashback For Merchant: Given an online store's domain or a product URL, return whether CashJosh has cashback for it: the rate, the tracked shopping link (shopUrl) the user starts from to earn it, and
• Coupons For Merchant: Given a store's domain (or a CashJosh store slug via `store`), return CashJosh's live coupon codes for it plus the cashback rate. Each coupon has `code`, `verified` and `expires`
• Search Cashback Stores: Search CashJosh partner stores by name. Returns matching stores with cashback rate, category, merchant domain and shopUrl.

Casper Tools

Offline

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19 zero-setup utilities: JSON, regex, cron, hash, base64, CSV, JWT, UUID, YAML, semver, time.

Cassandra prediction hub: one MCP door over govcon forecasts (recompete, contractor signals).

cast0 - Turn Text into a Published Podcast

Online

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Send text, get a podcast episode.

• Create Episode: Generate a new podcast episode from text. This is the main tool. Returns immediately with status 'queued'; rendering takes roughly few seconds, and the episode then auto-publishes to t
• Get Episode: Check the status of a single episode by id. Use this for troubleshooting. Status values: 'queued' or 'processing' (still rendering, just wait), 'done' (audio is published; if the user can
• List Episodes: List every episode for the podcast, newest first.

Castle Finance - Power DeFi Solana

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Castle Finance — Solana DeFi Agent Execute DeFi operations on Solana directly through AI agents.

• Ping: Free – health check
• Info: Free – server metadata
• Swap: Swap via Jupiter DEX. 0.001 USDC/call.

castles

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Castles, fortresses, palaces and ruins worldwide: search, nearby, fame ranking, statistics.

Cataas

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CATAAS MCP — Cat as a Service (free, no auth)

AI-curated book catalog that eliminates hallucinations and surfaces lesser-known titles.

Catalo.ai - Book Discovery

Online

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Find Books You'll Actually Finish You know what you like in a book,\ You just haven't had a good way to search for it.\ Until now...

• Explore Books: Search and filter fiction books. Filters are far reaching, including things like genre, mood, theme, pacing and more. Call list_filters first to discover available filter identifiers an
• Get Book Details: Get full details for up to 20 books (as returned by explore_books). When showing showing a book to the user, include a link to the website for the book, eg. [View on Catalo.ai](https
• List Bookmarked Books: List the current user's bookmarked books filtered by bookmark state. Use this tool when the user asks about their reading list, books they want to read, books they have read, or

Miles' public credit-card catalog: facts, transfer partners, valuations.

Search real parts with datasheet-provenance specs, check compatibility and compose priced BOMs.

Read-only MCP for the Gingerguide catalog of European cities and their narrated tour sights.

Catalog Attribute Normalizer

Online

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Catalog attribute normalizer, taxonomy-grounded — no fabricated Google/Shopify category IDs.

Search Avva for an expert, then connect their model - judgment from real past decisions.

Search & add local tours and experiences (Italy/EU).

catalog

Online

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Search 41,000+ agent skills, MCP servers, plugins & loops — real install counts and stars.

Read-only tools over an independently vetted catalog of non-toxic home and baby products.

catalog

Degraded

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Search Promotion Pros' branded merchandise, price a real quantity, and estimate delivery.

Maritime VSAT spares: part search, fitment, supersession and quote requests for satmarin.com

catalog-mcp

Online

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Search and fetch skills from your org's Skills and Agents catalog.

Read-only AgentiScript concept search, catalog, authenticity, license, and approved asset discovery.

catalogapi

Online

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Check reward coverage by country, search real catalog items, and ask how CatalogAPI works.

E-commerce inventory and catalog data structuring tool.