# CardChain AI — AI Connector CardChain AI publishes 11 MCP tools to Claude and is listed in the ChatGPT apps directory. Marketplace availability, tool surface, verification tier, and what Node8 measured against the live endpoint. Source: https://node8.ai/ai-connectors/entertainment/cardchain-ai/ --- [AI Connectors](https://node8.ai/ai-connectors/) · [Entertainment & Media](https://node8.ai/ai-connectors/entertainment/) # CardChain AI Trading card pricing and grading data in chat Listed in ChatGPT and Claude · 11 published tools · Community-listed [ChatGPT listing](https://chatgpt.com/plugins/cardchain-ai?open_in_app) [Claude connector docs](https://cardchain.ai/mcp) [cardchain.ai](https://cardchain.ai) Overview ## What CardChain AI does CardChain AI supplies market data on sports and Pokemon trading cards from within ChatGPT. A card is identified either from a photograph or through a search, and the response can include current pricing with a 30 day history along with population figures across the grading companies. The app also estimates return before a card is sent off for grading, and it can total the value of an entire collection at once. Questions about how a player's season is shifting demand for their cards fall within its scope, and cards listed for sale on the CardChain AI marketplace can be browsed in the same conversation. ### Who it is for A card collector weighing a purchase, a sale, or whether to submit something for grading. ### What stands out Population data across graders and pre-grading return estimates sit alongside straightforward price lookups. Availability ## Where CardChain AI is listed CardChain, Inc. ships this on both marketplaces: CardChain AI is listed in the Claude connectors directory and in the ChatGPT apps directory, under the same publisher domain. Only 392 of the 3,150 products in this directory are listed in both marketplaces. One MCP server can serve both surfaces; what differs is each platform's listing and review process. ChatGPT listing ## In the ChatGPT apps directory Developer CardChain AI Filed under Entertainment Listed since June 2026 Authentication Authenticates when installed Website [cardchain.ai](https://cardchain.ai) Policies published Privacy policy · Terms of service Official listing [Open in ChatGPT](https://chatgpt.com/plugins/cardchain-ai?open_in_app) Snapshot August 2026 ### Example prompts from the listing - Find me Drake Maye prizm cards - Show me the biggest movers in my collection - Should I grade my Saquon 2023 downtown? I expect it to grade an 8 or 10 Claude listing ## In the Claude connectors directory CardChain AI publishes 11 tools to Claude. That is a mid-sized surface: 48% of the 1,253 Claude-listed connectors expose fewer. That is exactly the median for Claude-listed connectors under Entertainment & Media, where 13 publish counts and 11 is the middle of the distribution. It falls in the 11-20 tools band, which holds 22.5% of the Claude directory. ### Measured against the live endpoint A direct call to the endpoint returned 11 tools, matching the 11 the listing publishes. Probed 2026-08-07. #### Tools the server actually returns - `search_cards` - `get_card_price` - `find_card_for_grading` - `should_i_grade` - `find_card_to_add` - `add_to_portfolio` - `get_portfolio` - `get_population` - `get_player_stats` - `get_cardchain_listings` - `get_capabilities` CardChain AI publishes a remote MCP endpoint. Claude connects to it over HTTP; there is nothing to install locally. Every connector in the Claude directory is remote, all 1,253 of them, so transport is not a differentiator there. Publisher CardChain, Inc. Verification Community-listed (61.5% of the Claude directory) Filed under Media & Entertainment Endpoint `https://api.cardchain.ai/mcp/claude` Documentation [Publisher setup docs](https://cardchain.ai/mcp) Published tools 11 · 11-20 tools band Depth rank in Entertainment & Media 7 of 13 Snapshot August 2026 CardChain AI is community-listed in the Claude directory, the tier 770 of 1,253 connectors sit in (61.5%). It is the default for a self-published server, and says nothing either way about quality. In the publisher's words ## How CardChain, Inc. describes it > Real trading card market data directly in Claude. Ask about any card and get live pricing with 30-day history, population reports across graders, and ROI analysis. See your whole collection's value at a glance, check how a player's season is shaping card demand, and browse cards for sale — all without leaving chat. Built for collectors who care about making the right call before they buy, sell, or grade. Quoted from the connector's own Claude directory listing as captured in August 2026. Node8 did not write it and does not vouch for it. Nearby ## Other Entertainment & Media connectors ### [DraftKings](https://node8.ai/ai-connectors/entertainment/draftkings/) Live scores and stats for four US leagues ChatGPT ### [FantasyBot Sports](https://node8.ai/ai-connectors/entertainment/fantasybot-sports/) Start, sit and trade advice for fantasy rosters ChatGPT ### [Flaim Fantasy](https://node8.ai/ai-connectors/entertainment/flaim-fantasy/) Fantasy analysis connected to actual league data ChatGPT ### [Gametime - Last Minute Tickets](https://node8.ai/ai-connectors/entertainment/gametime-last-minute-tickets/) Last minute tickets with venue maps and seat views ChatGPT ### [마이스코어봇](https://node8.ai/ai-connectors/entertainment/psynet/) Korean sports match results delivered as interactive widgets ChatGPT ### [Sportily](https://node8.ai/ai-connectors/entertainment/sportily/) Horse racing cards, runner profiles and pick tracking ChatGPT [All 95 Entertainment & Media connectors](https://node8.ai/ai-connectors/entertainment/) This is an independent catalogue entry compiled by Node8 from CardChain AI's public marketplace listings as they stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with CardChain, Inc., and inclusion here is not an endorsement. ## Want your company reachable inside ChatGPT and Claude? Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot. [See how it works](https://node8.ai/mcp) Book a strategy session