{"version":1,"x402Version":2,"enabled":false,"ownershipProofs":["domain:api.xmark.chat","wellknown:https://api.xmark.chat/.well-known/x402"],"seller":{"origin":"https://api.xmark.chat","wellKnown":"https://api.xmark.chat/.well-known/x402","openapi":"https://api.xmark.chat/openapi.json","payTo":""},"facilitator":{"url":"https://api.cdp.coinbase.com/platform/v2/x402","statusUrl":"https://api.cdp.coinbase.com/platform/v2/x402/status"},"headers":{"paymentRequired":"PAYMENT-REQUIRED","paymentSignature":"PAYMENT-SIGNATURE","paymentResponse":"PAYMENT-RESPONSE"},"legacy":{"paymentHeader":"X-PAYMENT","accepted":false},"accepts":[{"scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","payTo":""}],"resources":["https://api.xmark.chat/bookmarks/search","https://api.xmark.chat/chat","https://api.xmark.chat/credits/purchase"],"resourcesDetailed":[{"path":"/bookmarks/search","url":"https://api.xmark.chat/bookmarks/search","method":"POST","priceUsd":"$0.04","providerName":"xmark","providerUrl":"https://www.xmark.chat","category":"Knowledge","title":"Semantic search over a user's X bookmarks","description":"Run a semantic search query over the authenticated user's X (Twitter) bookmark library. Returns matching tweets with full text, author, engagement metrics, quoted tweets, and image alt text. Useful for research-assistant agents and knowledge-base assembly.","keywords":["bookmarks","twitter bookmarks","X bookmarks","semantic search","bookmark search","chat with bookmarks","AI bookmark search","tweet retrieval","knowledge base","personal research","RAG","embeddings","x402"],"useCase":"Let an agent search a user's curated bookmark library for tweets about a topic, returning citations back to the original posts.","sellerStats":{"statsAsOf":"2026-05-22","freeMonthlySearches":50,"embeddingModel":"text-embedding-3-small"},"proofPoints":["50 free searches per agent per month","Semantic search via OpenAI embeddings + pgvector","Citations include tweet URL, author, and engagement"],"docsUrl":"https://www.xmark.chat/docs","marketplacePriority":1},{"path":"/chat","url":"https://api.xmark.chat/chat","method":"POST","priceUsd":"$0.20","providerName":"xmark","providerUrl":"https://www.xmark.chat","category":"Knowledge","title":"Chat with a user's X bookmarks (Claude + RAG)","description":"Ask a natural-language question of a user's X bookmark library. xmark retrieves relevant tweets via semantic search, then has Claude answer with inline citations back to the original posts.","keywords":["chat","RAG","Claude","knowledge base","citations"],"useCase":"Let an agent ask 'what did the user save about X?' and get a cited answer drawn from their saved tweets.","docsUrl":"https://www.xmark.chat/docs","marketplacePriority":2},{"path":"/credits/purchase","url":"https://api.xmark.chat/credits/purchase","method":"POST","priceUsd":"$5.00","providerName":"xmark","providerUrl":"https://www.xmark.chat","category":"Knowledge","title":"Buy a credit pack (MPP / Stripe)","description":"Buy a pack of xmark agent credits via MPP (Stripe). 100 searches or 20 chats per pack. Alternative to per-call x402 micropayments.","keywords":["credits","MPP","Stripe","billing","x402"],"useCase":"Let an MPP-only agent prepay a pack of operations instead of settling x402 per call.","docsUrl":"https://www.xmark.chat/docs","marketplacePriority":3}],"marketplace":{"providerName":"xmark","providerUrl":"https://www.xmark.chat","displayName":"xmark","category":"Knowledge","agenticMarketService":"www.xmark.chat","description":"Semantic search and AI chat over a user's X (Twitter) bookmark library. Agents can query saved tweets as a knowledge base — useful for research, briefings, and citation extraction. Pay-per-search via x402 ($0.04 USDC, 50 free/month) and pay-per-chat at $0.20. MPP credit packs available at $5.00/100 credits.","keywords":["bookmarks","twitter bookmarks","X bookmarks","semantic search","bookmark search","chat with bookmarks","AI bookmark search","tweet retrieval","knowledge base","personal research","RAG","embeddings","x402"],"sellerStats":{"statsAsOf":"2026-05-22","freeMonthlySearches":50,"embeddingModel":"text-embedding-3-small","chatModel":"claude-sonnet"},"proofPoints":["Semantic search via OpenAI text-embedding-3-small + pgvector","Chat answers cite original tweets","50 free searches per agent per month (x402)"],"homepage":"https://www.xmark.chat","docsUrl":"https://www.xmark.chat/docs","recommendedHeroPaths":["/bookmarks/search"],"heroResources":[{"path":"/bookmarks/search","url":"https://api.xmark.chat/bookmarks/search","method":"POST","priceUsd":"$0.04","providerName":"xmark","providerUrl":"https://www.xmark.chat","category":"Knowledge","title":"Semantic search over a user's X bookmarks","description":"Run a semantic search query over the authenticated user's X (Twitter) bookmark library. Returns matching tweets with full text, author, engagement metrics, quoted tweets, and image alt text. Useful for research-assistant agents and knowledge-base assembly.","keywords":["bookmarks","twitter bookmarks","X bookmarks","semantic search","bookmark search","chat with bookmarks","AI bookmark search","tweet retrieval","knowledge base","personal research","RAG","embeddings","x402"],"useCase":"Let an agent search a user's curated bookmark library for tweets about a topic, returning citations back to the original posts.","sellerStats":{"statsAsOf":"2026-05-22","freeMonthlySearches":50,"embeddingModel":"text-embedding-3-small"},"proofPoints":["50 free searches per agent per month","Semantic search via OpenAI embeddings + pgvector","Citations include tweet URL, author, and engagement"],"docsUrl":"https://www.xmark.chat/docs","marketplacePriority":1},{"path":"/chat","url":"https://api.xmark.chat/chat","method":"POST","priceUsd":"$0.20","providerName":"xmark","providerUrl":"https://www.xmark.chat","category":"Knowledge","title":"Chat with a user's X bookmarks (Claude + RAG)","description":"Ask a natural-language question of a user's X bookmark library. xmark retrieves relevant tweets via semantic search, then has Claude answer with inline citations back to the original posts.","keywords":["chat","RAG","Claude","knowledge base","citations"],"useCase":"Let an agent ask 'what did the user save about X?' and get a cited answer drawn from their saved tweets.","docsUrl":"https://www.xmark.chat/docs","marketplacePriority":2},{"path":"/credits/purchase","url":"https://api.xmark.chat/credits/purchase","method":"POST","priceUsd":"$5.00","providerName":"xmark","providerUrl":"https://www.xmark.chat","category":"Knowledge","title":"Buy a credit pack (MPP / Stripe)","description":"Buy a pack of xmark agent credits via MPP (Stripe). 100 searches or 20 chats per pack. Alternative to per-call x402 micropayments.","keywords":["credits","MPP","Stripe","billing","x402"],"useCase":"Let an MPP-only agent prepay a pack of operations instead of settling x402 per call.","docsUrl":"https://www.xmark.chat/docs","marketplacePriority":3}]}}