{"id":"ea7c6d84-3ebb-4d80-b796-a444c49e7ad5","shortId":"XqG73n","kind":"x402","title":"Pay-per-access IPFS image retrieval via x402 on Base Sepolia (1 USDC per fetch)","tagline":"Pay-per-access IPFS image retrieval via x402 on Base Sepolia (1 USDC per fetch)","description":"This endpoint serves an IPFS-pinned image (PNG) identified by its CID (bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq) through a pay-per-request x402 gateway hosted on Pinata's dev infrastructure (grapevine.dev-mypinata.cloud). To retrieve the content, a caller must include a valid `x-payment` header containing an x402 payment proof. The payment scheme is \"exact,\" requiring 1 USDC (1,000,000 base units) on the Base Sepolia testnet, sent to the specified payTo address.\n\nThe gateway appears to be a Pinata-based IPFS gateway augmented with x402 payment gating. Each request is a simple HTTP GET; the response MIME type is `image/png`. The x402 challenge is version 1 and allows a maximum timeout of 60 seconds for payment settlement. The asset used for payment is the USDC contract on Base Sepolia (0x036CbD53842c5426634e7929541eC2318f3dCF7e).\n\nDocumentation is effectively absent — all non-CID paths on the origin return error messages. There is no OpenAPI spec, no agents.txt, and no robots.txt. The endpoint is live and returns a well-formed 402 challenge, but the lack of surrounding documentation and the use of a testnet suggest this is a development or demonstration deployment rather than a production service.","tags":[],"capabilities":["ipfs-content-retrieval","x402-payment-gating","image-png-serving","base-sepolia-usdc","pay-per-request"],"categories":["storage","crypto"],"synonyms":["IPFS gateway","paid IPFS access","Pinata x402","content-addressed storage","CID retrieval","pay-per-download","gated IPFS content"],"warnings":["No documentation found — all non-CID paths return errors","Uses Base Sepolia testnet, not mainnet; USDC is testnet USDC","Appears to be a development/demo deployment (dev-mypinata.cloud subdomain)","Single hardcoded CID — not a general-purpose gateway endpoint","No OpenAPI schema or agents.txt available"],"endpointUrl":"https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0xbc03df2D9F44Cc552EbbFF39860f2CC4fC751d0E","scheme":"exact","network":"base-sepolia","mimeType":"image/png","resource":"https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq","description":"1 USDC on base-sepolia","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"1000000","maxTimeoutSeconds":60}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 challenge with clear payment parameters and MIME type. However, there is zero documentation, no OpenAPI spec, no examples, and the deployment is on a testnet dev subdomain, suggesting it is a demo or test instance rather than a stable production 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'0x036cbd53842c5426634e7929541ec2318f3dcf7e':163 '1':13,29,87,89,139 '402':199 '60':146 'CID retrieval' 'IPFS gateway' 'Pinata x402' 'absent':167 'access':4,20 'address':104 'agents.txt':185 'allow':141 'appear':107 'asset':152 'augment':116 'bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq':46 'base':11,27,92,96,113,161 'base-sepolia-usdc' 'caller':67 'challeng':136,200 'cid':45,171 'contain':76 'content':65 'content-addressed storage' 'contract':159 'demonstr':219 'deploy':220 'dev':59 'develop':217 'document':164,206 'effect':166 'endpoint':34,190 'error':177 'exact':85 'fetch':16,32 'form':198 'gate':120 'gated IPFS content' 'gateway':54,106,115 'get':127 'grapevine.dev-mypinata.cloud':61 'header':75 'host':55 'http':126 'identifi':42 'imag':6,22,40 'image-png-serving' 'image/png':133 'includ':69 'infrastructur':60 'ipf':5,21,38,114 'ipfs-content-retrieval' 'ipfs-pin':37 'lack':203 'live':192 'maximum':143 'messag':178 'mime':130 'must':68 'non':170 'non-cid':169 'openapi':182 'origin':175 'paid IPFS access' 'path':172 'pay':2,18,50 'pay-per-access':1,17 'pay-per-download' 'pay-per-request':49 'payment':74,79,82,119,149,155 'payto':103 'per':3,15,19,31,51 'pin':39 'pinata':57,112 'pinata-bas':111 'png':41 'product':224 'proof':80 'rather':221 'request':52,122 'requir':86 'respons':129 'retriev':7,23,63 'return':176,194 'robots.txt':188 'scheme':83 'second':147 'sent':99 'sepolia':12,28,97,162 'serv':35 'servic':225 'settlement':150 'simpl':125 'spec':183 'specifi':102 'suggest':213 'surround':205 'testnet':98,212 'timeout':144 'type':131 'unit':93 'usdc':14,30,88,158 'use':153,209 'valid':71 'version':138 'via':8,24 'well':197 'well-form':196 'x':73 'x-payment':72 'x402':9,25,53,78,118,135 'x402-payment-gating'","prices":[{"id":"5f66ee75-643a-43fd-93b3-9351ecd1d6c1","listingId":"ea7c6d84-3ebb-4d80-b796-a444c49e7ad5","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"1000000","chain":"base-sepolia","payTo":"0xbc03df2D9F44Cc552EbbFF39860f2CC4fC751d0E","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"image/png","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0xbc03df2D9F44Cc552EbbFF39860f2CC4fC751d0E","scheme":"exact","network":"base-sepolia","mimeType":"image/png","resource":"https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq","description":"1 USDC on base-sepolia","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"1000000","maxTimeoutSeconds":60}],"asset_contract":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","max_timeout_seconds":60},"createdAt":"2026-04-18T18:31:44.803Z"}],"sources":[{"listingId":"ea7c6d84-3ebb-4d80-b796-a444c49e7ad5","source":"x402_bazaar","sourceId":"https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:31:44.803Z","lastSeenAt":"2026-04-22T02:30:12.558Z"}],"details":{"listingId":"ea7c6d84-3ebb-4d80-b796-a444c49e7ad5","quickStartSnippet":"curl -X GET \\\n  -H \"x-payment: <x402_payment_proof>\" \\\n  https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq \\\n  --output image.png","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge requiring 1 USDC on base-sepolia with scheme 'exact'","source_url":"https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq"},{"claim":"The response MIME type is image/png","source_url":"https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq"},{"claim":"Payment asset is USDC at contract 0x036CbD53842c5426634e7929541eC2318f3dCF7e on Base Sepolia","source_url":"https://grapevine.dev-mypinata.cloud/x402/cid/bafkreiefb2zp43pcvlbcorkleopnxlyezr6jcyf3i4kxzsmjiqw3hysvjq"},{"claim":"Root origin returns 'No CID provided' error with status 400","source_url":"https://grapevine.dev-mypinata.cloud"}],"useCases":["Paying to retrieve a specific IPFS-pinned PNG image via x402","Demonstrating x402 payment flows on Base Sepolia testnet","Agent-driven purchase of gated digital content stored on IPFS"],"bestFor":["Developers testing x402 payment integrations on a testnet","Agents that need to programmatically purchase IPFS-hosted images","Prototyping pay-per-access content delivery over IPFS"],"notFor":["Production workloads requiring mainnet settlement","Bulk or batch retrieval of many IPFS objects (single CID endpoint)","Users needing free or unauthenticated IPFS access"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:03.65Z"},"updatedAt":"2026-04-22T02:30:12.558Z"}}