{"id":"d2366347-0fb5-405e-9978-25a8359c17da","shortId":"LBD3K2","kind":"x402","title":"Pay-per-access IPFS content gateway serving an image/gif via x402 on Base Sepolia.","tagline":"Pay-per-access IPFS content gateway serving an image/gif via x402 on Base Sepolia.","description":"This endpoint is an x402-enabled gateway that serves IPFS content identified by CID (Content Identifier). The specific resource at CID `bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m` returns an `image/gif` file upon successful payment. The gateway uses the x402 protocol to gate access: unauthenticated GET requests receive a 402 Payment Required challenge describing how to pay.\n\nPayment is accepted via the \"exact\" scheme on the Base Sepolia testnet, requiring up to 10 units of USDC (contract `0x036CbD53842c5426634e7929541eC2318f3dCF7e`) sent to address `0x0215c0c5621e52B7D05aaEE7C6C6aD07C8688e54`. The payment timeout is 60 seconds. Callers must include a valid `x-payment` header to retrieve the content.\n\nThe gateway appears to be a test/demo deployment hosted at `testgateway.mattober.com`. The root URL returns \"No CID provided\" errors, and no documentation, OpenAPI spec, or additional pages are available. The URL structure suggests it can serve arbitrary IPFS CIDs under the `/x402/cid/` path, but only this specific CID has been verified as live. Because this runs on a testnet with test USDC, it is suitable for development and experimentation rather than production use.","tags":[],"capabilities":["x402-payment-gating","ipfs-content-delivery","image-gif-serving","base-sepolia-testnet","usdc-payment","cid-based-routing"],"categories":["storage","media"],"synonyms":["IPFS gateway","paid content gateway","x402 image endpoint","CID content server","decentralized storage gateway","pay-per-view image","testnet content gateway"],"warnings":["Testnet deployment (Base Sepolia) — not suitable for production use","No documentation, OpenAPI spec, or landing page available","The x402 challenge description field is empty, providing no human-readable explanation of the content","Only one specific CID has been verified as functional; gateway behavior for other CIDs is unknown","Payment uses test USDC, not real funds"],"endpointUrl":"https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x0215c0c5621e52B7D05aaEE7C6C6aD07C8688e54","scheme":"exact","network":"base-sepolia","mimeType":"image/gif","resource":"https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m","description":"","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"10","maxTimeoutSeconds":60}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a well-formed 402 challenge, but there is no documentation, no OpenAPI spec, no examples, and no description beyond what the challenge itself provides. The gateway is a testnet deployment with no discoverable docs. Most listing details are inferred from the challenge payload 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'0x0215c0c5621e52b7d05aaee7c6c6ad07c8688e54':107 '0x036cbd53842c5426634e7929541ec2318f3dcf7e':103 '10':98 '402':75 '60':112 'CID content server' 'IPFS gateway' 'accept':85 'access':4,19,69 'addit':152 'address':106 'appear':129 'arbitrari':163 'avail':155 'bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m':53 'base':14,29,92 'base-sepolia-testnet' 'caller':114 'challeng':78 'cid':45,52,143,165,174 'cid-based-routing' 'content':6,21,42,46,126 'contract':102 'decentralized storage gateway' 'deploy':134 'describ':79 'develop':193 'document':148 'enabl':37 'endpoint':32 'error':145 'exact':88 'experiment':195 'file':57 'gate':68 'gateway':7,22,38,62,128 'get':71 'header':122 'host':135 'identifi':43,47 'image-gif-serving' 'image/gif':10,25,56 'includ':116 'ipf':5,20,41,164 'ipfs-content-delivery' 'live':179 'must':115 'openapi':149 'page':153 'paid content gateway' 'path':169 'pay':2,17,82 'pay-per-access':1,16 'pay-per-view image' 'payment':60,76,83,109,121 'per':3,18 'product':198 'protocol':66 'provid':144 'rather':196 'receiv':73 'request':72 'requir':77,95 'resourc':50 'retriev':124 'return':54,141 'root':139 'run':182 'scheme':89 'second':113 'sent':104 'sepolia':15,30,93 'serv':8,23,40,162 'spec':150 'specif':49,173 'structur':158 'success':59 'suggest':159 'suitabl':191 'test':187 'test/demo':133 'testgateway.mattober.com':137 'testnet':94,185 'testnet content gateway' 'timeout':110 'unauthent':70 'unit':99 'upon':58 'url':140,157 'usdc':101,188 'usdc-payment' 'use':63,199 'valid':118 'verifi':177 'via':11,26,86 'x':120 'x-payment':119 'x402':12,27,36,65 'x402 image endpoint' 'x402-enabled':35 'x402-payment-gating'","prices":[{"id":"d96b6968-04f5-41c3-8f3a-46a5c9415b2e","listingId":"d2366347-0fb5-405e-9978-25a8359c17da","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"10","chain":"base-sepolia","payTo":"0x0215c0c5621e52B7D05aaEE7C6C6aD07C8688e54","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"image/gif","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x0215c0c5621e52B7D05aaEE7C6C6aD07C8688e54","scheme":"exact","network":"base-sepolia","mimeType":"image/gif","resource":"https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m","description":"","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"10","maxTimeoutSeconds":60}],"asset_contract":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","max_timeout_seconds":60},"createdAt":"2026-04-18T18:30:48.409Z"}],"sources":[{"listingId":"d2366347-0fb5-405e-9978-25a8359c17da","source":"x402_bazaar","sourceId":"https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:48.409Z","lastSeenAt":"2026-04-22T02:30:10.093Z"}],"details":{"listingId":"d2366347-0fb5-405e-9978-25a8359c17da","quickStartSnippet":"curl -X GET \\\n  -H \"x-payment: <valid-x402-payment-token>\" \\\n  https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returns HTTP 402 with x402 version 1 challenge on GET","source_url":"https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m"},{"claim":"Payment accepted on Base Sepolia network using USDC at asset address 0x036CbD53842c5426634e7929541eC2318f3dCF7e","source_url":"https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m"},{"claim":"Content MIME type is image/gif","source_url":"https://testgateway.mattober.com/x402/cid/bafkreibed3rrvo5cmzfwvytbmkqpgn5m7ays5cotf2agweycev5ibirl4m"},{"claim":"Root URL returns 'No CID provided' error","source_url":"https://testgateway.mattober.com"}],"useCases":["Retrieving a pay-gated GIF image from IPFS via x402 payment","Testing x402 payment flows against a live testnet endpoint","Prototyping agent-driven micropayment workflows for IPFS content","Demonstrating decentralized content monetization with USDC on Base Sepolia"],"bestFor":["Developers testing x402 protocol integrations","Experimenting with IPFS content monetization on testnet","Agents that need to fetch pay-gated media files"],"notFor":["Production content delivery (this is a testnet deployment)","Serving non-IPFS or non-CID-based content","High-throughput or low-latency media streaming"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:22.422Z"},"updatedAt":"2026-04-22T02:30:10.093Z"}}