{"id":"9653a4f7-24f5-477d-aeed-8ca8bdac82da","shortId":"L9tQ8Z","kind":"x402","title":"x402-gated payment endpoint on BaseHub, a multi-chain Web3 tools platform — 0.10 USDC per call on Base.","tagline":"x402-gated payment endpoint on BaseHub, a multi-chain Web3 tools platform — 0.10 USDC per call on Base.","description":"BaseHub is a multi-chain Web3 platform offering games, token swaps, NFT minting, smart contract deployment, wallet analysis, and XP-based rewards across several EVM networks including Base, InkChain, Soneium, Tempo, Katana, and MegaETH. This specific endpoint (`/api/x402-payment`) is an x402-gated API that charges 0.10 USDC per POST request on the Base network, settled to address `0x7d2Ceb7a0e0C39A3d0f7B5b491659fDE4bb7BCFe` using the USDC contract at `0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913`.\n\nThe endpoint is live and returns a proper x402 challenge (version 1, scheme \"exact\") when called without payment. However, there is no public documentation, OpenAPI schema, or description of what the endpoint actually returns once payment is made. The platform's crawled pages (docs, api, pricing, README) all redirect to the same single-page app shell with no meaningful API documentation. The x402 challenge specifies `mimeType: application/json` and `method: POST`, but the request body schema and response payload are unknown.\n\nBased on the broader BaseHub platform context, this endpoint likely relates to one of the platform's paid features (wallet analysis, contract security, allowance cleaning, or the NFT wheel/plinko games), but the exact functionality behind this payment gate cannot be confirmed from available materials.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","evm-compatible","json-response"],"categories":["crypto","web3"],"synonyms":["basehub payment","x402 usdc","base chain payment","web3 payment api","basehub x402","crypto micropayment"],"warnings":["No API documentation available — docs, pricing, and README pages all return empty SPA shells","Request body schema and response payload are completely unknown","Exact functionality behind the payment gate cannot be determined from available materials","Platform appears to be in early/beta stage"],"endpointUrl":"https://basehub-alpha.vercel.app/api/x402-payment","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x7d2Ceb7a0e0C39A3d0f7B5b491659fDE4bb7BCFe","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://basehub-alpha.vercel.app/","description":"BaseHub x402 Payment - Pay 0.1 USDC","outputSchema":{"input":{"type":"http","method":"POST","discoverable":true}},"maxAmountRequired":"100000","maxTimeoutSeconds":600}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live and returns a valid x402 challenge, but there is zero documentation on what the endpoint does once paid, no OpenAPI schema, no example requests or responses, and the docs/api/pricing/README pages all resolve to an empty SPA shell. The actual functionality behind the payment gate is 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'0.10':15,35,89 '0x7d2ceb7a0e0c39a3d0f7b5b491659fde4bb7bcfe':101 '0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':107 '1':119 'across':65 'actual':140 'address':100 'allow':212 'analysi':59,209 'api':86,152,168 'app':163 'application/json':175 'avail':231 'base':20,40,63,70,96,189 'base chain payment' 'base-network' 'basehub':7,27,41,193 'basehub payment' 'basehub x402' 'behind':223 'bodi':182 'broader':192 'call':18,38,123 'cannot':227 'chain':11,31,46 'challeng':117,172 'charg':88 'clean':213 'confirm':229 'context':195 'contract':56,105,210 'crawl':149 'crypto micropayment' 'deploy':57 'descript':135 'doc':151 'document':131,169 'endpoint':5,25,79,109,139,197 'evm':67 'evm-compatible' 'exact':121,221 'featur':207 'function':222 'game':50,218 'gate':3,23,85,226 'howev':126 'includ':69 'inkchain':71 'json-response' 'katana':74 'like':198 'live':111 'made':145 'materi':232 'meaning':167 'megaeth':76 'method':177 'mimetyp':174 'mint':54 'multi':10,30,45 'multi-chain':9,29,44 'network':68,97 'nft':53,216 'offer':49 'one':201 'openapi':132 'page':150,162 'paid':206 'payload':186 'payment':4,24,125,143,225 'per':17,37,91 'platform':14,34,48,147,194,204 'post':92,178 'price':153 'proper':115 'public':130 'readm':154 'redirect':156 'relat':199 'request':93,181 'respons':185 'return':113,141 'reward':64 'schema':133,183 'scheme':120 'secur':211 'settl':98 'sever':66 'shell':164 'singl':161 'single-pag':160 'smart':55 'soneium':72 'specif':78 'specifi':173 'swap':52 'tempo':73 'token':51 'tool':13,33 'unknown':188 'usdc':16,36,90,104 'usdc-settlement' 'use':102 'version':118 'wallet':58,208 'web3':12,32,47 'web3 payment api' 'wheel/plinko':217 'without':124 'x402':2,22,84,116,171 'x402 usdc' 'x402-gated':1,21,83 'x402-payment' 'xp':62 'xp-base':61","prices":[{"id":"3de131c8-3469-44b5-b241-6d79cfcb55a0","listingId":"9653a4f7-24f5-477d-aeed-8ca8bdac82da","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"100000","chain":"base","payTo":"0x7d2Ceb7a0e0C39A3d0f7B5b491659fDE4bb7BCFe","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x7d2Ceb7a0e0C39A3d0f7B5b491659fDE4bb7BCFe","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://basehub-alpha.vercel.app/","description":"BaseHub x402 Payment - Pay 0.1 USDC","outputSchema":{"input":{"type":"http","method":"POST","discoverable":true}},"maxAmountRequired":"100000","maxTimeoutSeconds":600}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":600},"createdAt":"2026-04-21T18:32:33.594Z"}],"sources":[{"listingId":"9653a4f7-24f5-477d-aeed-8ca8bdac82da","source":"x402_bazaar","sourceId":"https://basehub-alpha.vercel.app/api/x402-payment","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:33.594Z","lastSeenAt":"2026-04-22T04:02:48.733Z"}],"details":{"listingId":"9653a4f7-24f5-477d-aeed-8ca8bdac82da","quickStartSnippet":"curl -X POST https://basehub-alpha.vercel.app/api/x402-payment \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"POST","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with maxAmountRequired of 100000 (0.10 USDC) on Base network","source_url":"https://basehub-alpha.vercel.app/api/x402-payment"},{"claim":"BaseHub is a multi-chain Web3 platform supporting Base, InkChain, Soneium, Tempo, Katana, MegaETH and others","source_url":"https://basehub-alpha.vercel.app"},{"claim":"USDC asset contract is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://basehub-alpha.vercel.app/api/x402-payment"},{"claim":"Payment is settled to address 0x7d2Ceb7a0e0C39A3d0f7B5b491659fDE4bb7BCFe","source_url":"https://basehub-alpha.vercel.app/api/x402-payment"}],"useCases":["Paying for gated BaseHub platform features via x402 protocol","Programmatic access to BaseHub services using USDC micropayments on Base","Agent-driven interaction with BaseHub's paid Web3 tools"],"bestFor":["Developers integrating x402 payment flows on Base network","Agents needing programmatic access to BaseHub paid features","Users exploring x402 protocol implementations"],"notFor":["Anyone needing well-documented API contracts — no schema or response docs exist","Use cases requiring non-USDC or non-Base settlement"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:12:43.915Z"},"updatedAt":"2026-04-22T04:02:48.733Z"}}