{"id":"67e4f1aa-e259-4aab-9881-884ea01bb434","shortId":"nkqUZK","kind":"x402","title":"x402-gated token data endpoint for CELO on Base, paid per-request in USDC.","tagline":"x402-gated token data endpoint for CELO on Base, paid per-request in USDC.","description":"This endpoint at lowpaymentfee.com provides token data for CELO via an x402-gated API. It is part of a broader platform offering dozens of endpoints across data analytics, AI/ML inference, finance/Web3, and infrastructure categories — all priced at $0.02 per request and settled in USDC on the Base network.\n\nThe specific endpoint `/api/v1/tokens/CELO` accepts POST requests and returns JSON. Payment is handled via the x402 protocol: callers attach an `X-PAYMENT` header containing a signed USDC payment on Base. The maximum amount required per call is 20,000 base units of USDC (6 decimals), which equals $0.02. The platform advertises no API keys, no rate limits, and instant access — you pay per request with no subscriptions or commitments.\n\nDocumentation beyond the landing page is extremely sparse; the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no additional technical detail. There is no OpenAPI spec, no request/response schema, and no example payloads available. The exact data returned for a token query (price, metadata, on-chain stats, etc.) is not documented and must be inferred or discovered by making a paid call.","tags":[],"capabilities":["x402-payment","usdc-settlement","base-network","token-data","per-request-pricing","no-api-key","json-response"],"categories":["crypto","finance"],"synonyms":["CELO token data","token price API","crypto token info","x402 API","pay-per-call API","USDC micropayment API","Base network API"],"warnings":["No OpenAPI or schema available — request and response formats are undocumented","All documentation pages (docs, API, pricing, README) render only 'Connect wallet' with no content","The exact nature of the data returned for /api/v1/tokens/CELO is not specified anywhere in the crawl material","Platform appears to list many endpoints but provides no technical documentation for any of them"],"endpointUrl":"https://lowpaymentfee.com/api/v1/tokens/CELO","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/tokens/CELO","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.350","qualityRationale":"The endpoint is live and returns a valid x402 402 challenge, confirming it is operational. However, there is no OpenAPI spec, no request/response schema, no examples, and no meaningful documentation — the docs pages all show only 'Connect wallet'. The exact data returned is unknown, making this effectively a stub 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'0.02':71,130 '000':121 '20':120 '6':126 'Base network API' 'CELO token data' 'USDC micropayment API' 'accept':86 'access':142 'across':59 'addit':176 'advertis':133 'ai/ml':62 'amount':115 'analyt':61 'api':47,135,162 'attach':100 'avail':191 'base':10,26,80,112,122 'base-network' 'beyond':153 'broader':53 'call':118,220 'caller':99 'categori':67 'celo':8,24,41 'chain':204 'commit':151 'connect':171 'contain':106 'crypto token info' 'data':5,21,39,60,194 'decim':127 'detail':178 'discov':215 'doc':161 'document':152,209 'dozen':56 'endpoint':6,22,34,58,84 'equal':129 'etc':206 'exact':193 'exampl':189 'extrem':158 'finance/web3':64 'gate':3,19,46 'handl':94 'header':105 'infer':63,213 'infrastructur':66 'instant':141 'json':91 'json-response' 'key':136 'land':155 'limit':139 'lowpaymentfee.com':36 'make':217 'maximum':114 'metadata':201 'must':211 'network':81 'no-api-key' 'offer':55 'on-chain':202 'openapi':182 'page':156,166 'paid':11,27,219 'part':50 'pay':144 'pay-per-call API' 'payload':190 'payment':92,104,110 'per':13,29,72,117,145 'per-request':12,28 'per-request-pricing' 'platform':54,132 'post':87 'price':69,163,200 'prompt':173 'protocol':98 'provid':37 'queri':199 'rate':138 'readm':165 'render':168 'request':14,30,73,88,146 'request/response':185 'requir':116 'return':90,195 'schema':186 'settl':75 'sign':108 'spars':159 'spec':183 'specif':83 'stat':205 'subscript':149 'technic':177 'token':4,20,38,198 'token price API' 'token-data' 'unit':123 'usdc':16,32,77,109,125 'usdc-settlement' 'via':42,95 'wallet':172 'x':103 'x-payment':102 'x402':2,18,45,97 'x402 API' 'x402-gated':1,17,44 'x402-payment'","prices":[{"id":"1ba513fe-8002-400c-bd69-a48fb1a0f647","listingId":"67e4f1aa-e259-4aab-9881-884ea01bb434","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/tokens/CELO","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:34:04.109Z"}],"sources":[{"listingId":"67e4f1aa-e259-4aab-9881-884ea01bb434","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/tokens/CELO","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:34:04.109Z","lastSeenAt":"2026-04-23T20:01:29.924Z"}],"details":{"listingId":"67e4f1aa-e259-4aab-9881-884ea01bb434","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/tokens/CELO \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge requiring USDC payment on Base with maxAmountRequired of 20000 base units","source_url":"https://lowpaymentfee.com/api/v1/tokens/CELO"},{"claim":"The platform prices all endpoints at $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://lowpaymentfee.com/api/v1/tokens/CELO"}],"useCases":["Fetching CELO token data (price, metadata, or quotes) programmatically","Integrating pay-per-call crypto data into an agent workflow without API key management","Building dashboards or bots that need on-demand token information settled via USDC on Base"],"bestFor":["Developers wanting keyless, pay-per-use token data access","AI agents that can settle x402 payments autonomously on Base","Projects needing low-friction crypto data without subscription commitments"],"notFor":["High-volume use cases where $0.02/request adds up quickly compared to subscription APIs","Users who need detailed documentation or guaranteed SLAs before integrating"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-27T18:15:49.5Z"},"updatedAt":"2026-04-23T20:01:29.924Z"}}