{"id":"46c8a5df-8115-4c72-b802-d454a13f7ab3","shortId":"JpzsYN","kind":"x402","title":"Swap 1 USDC for RUN tokens on Base via x402 payment protocol","tagline":"Swap 1 USDC for RUN tokens on Base via x402 payment protocol","description":"This x402-enabled endpoint on x420.dev allows agents to purchase RUN ($RUN) tokens by paying 1 USDC on the Base network. When a valid X-PAYMENT header is provided, the service executes a token swap and sends the resulting RUN tokens to the caller. The endpoint returns a JSON response containing the swap transaction hash, send transaction hash, the number of tokens received, and the USDC amount paid.\n\nThe RUN token (contract 0x7f7F9d18a2b58F808acE9b6db2094E5D9ca33B07) was created via Clanker and is traded on Base. The x402 payment is sent to address 0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd using USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) with the \"exact\" scheme, meaning the full 1 USDC (1000000 in 6-decimal units) is required. The service reports a 100% success rate across 5 total transactions from 2 unique users, with an average latency of 2.28 seconds and a trust score of 83%.","tags":[],"capabilities":["token-swap","x402-payment","base-network","usdc-payment","erc20-purchase"],"categories":["crypto","defi"],"synonyms":["token purchase","RUN token","USDC swap","Base chain swap","x402 token buy","crypto swap endpoint","Clanker token","puff"],"warnings":["Documentation pages (/docs, /api, /pricing, /README) all return 'doesn't exist'","Very low transaction volume (5 total, 2 unique users) — limited production validation","No OpenAPI schema available; output schema inferred from x402 challenge only","RUN is a Clanker-created token with no established market — high financial risk","Fixed 1 USDC purchase amount with no apparent configurability"],"endpointUrl":"https://run.x420.dev/api/puff","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://run.x420.dev/api/puff","description":"Buy 1 USDC worth of RUN tokens 0x7f7F9d18a2b58F808acE9b6db2094E5D9ca33B07","outputSchema":{"input":{"type":"http","method":"GET"},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"maxAmountRequired":"1000000","maxTimeoutSeconds":120}]},"qualityScore":"0.350","qualityRationale":"No OpenAPI spec, no documentation pages (all return 'doesn't exist'), no examples beyond the x402 challenge output schema. The endpoint is live with a small number of transactions, but information is minimal and largely inferred from the x402 challenge and the landing page 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'0x833589fcd6edb6e08f4c7c32d4f71b54bda02913':119 '0x93109d14f6665a9c9675290d3cd5a6c07bbafdbd':116 '1':2,14,41,127 '100':140 '1000000':129 '2':148 '2.28':156 '5':144 '6':131 '83':163 'Base chain swap' 'Clanker token' 'RUN token' 'USDC swap' 'across':143 'address':115 'agent':33 'allow':32 'amount':93 'averag':153 'base':8,20,45,108 'base-network' 'caller':70 'clanker':103 'contain':77 'contract':98 'creat':101 'crypto swap endpoint' 'decim':132 'enabl':28 'endpoint':29,72 'erc20-purchase' 'exact':122 'execut':58 'full':126 'hash':81,84 'header':53 'json':75 'latenc':154 'mean':124 'network':46 'number':86 'paid':94 'pay':40 'payment':11,23,52,111 'protocol':12,24 'provid':55 'puff' 'purchas':35 'rate':142 'receiv':89 'report':138 'requir':135 'respons':76 'result':65 'return':73 'run':5,17,36,37,66,96 'scheme':123 'score':161 'second':157 'send':63,82 'sent':113 'servic':57,137 'success':141 'swap':1,13,61,79 'token':6,18,38,60,67,88,97 'token purchase' 'token-swap' 'total':145 'trade':106 'transact':80,83,146 'trust':160 'uniqu':149 'unit':133 'usdc':3,15,42,92,118,128 'usdc-payment' 'use':117 'user':150 'valid':49 'via':9,21,102 'x':51 'x-payment':50 'x402':10,22,27,110 'x402 token buy' 'x402-enabled':26 'x402-payment' 'x420.dev':31","prices":[{"id":"bfd6c8bb-9451-4495-9ff3-e2126412c8c4","listingId":"46c8a5df-8115-4c72-b802-d454a13f7ab3","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"1000000","chain":"base","payTo":"0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://run.x420.dev/api/puff","description":"Buy 1 USDC worth of RUN tokens 0x7f7F9d18a2b58F808acE9b6db2094E5D9ca33B07","outputSchema":{"input":{"type":"http","method":"GET"},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"maxAmountRequired":"1000000","maxTimeoutSeconds":120}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":120},"createdAt":"2026-04-18T06:06:24.216Z"}],"sources":[{"listingId":"46c8a5df-8115-4c72-b802-d454a13f7ab3","source":"x402_bazaar","sourceId":"https://run.x420.dev/api/puff","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T06:06:24.216Z","lastSeenAt":"2026-04-23T05:00:32.235Z"}],"details":{"listingId":"46c8a5df-8115-4c72-b802-d454a13f7ab3","quickStartSnippet":"curl -X GET https://run.x420.dev/api/puff \\\n  -H \"X-PAYMENT: <x402-payment-header>\"","exampleRequest":null,"exampleResponse":{"message":"Swap successful","tokensReceived":"42000.0","usdcAmountPaid":"1.0","sendTransactionHash":"0x789abc...012def","swapTransactionHash":"0xabc123...def456"},"schema":{"input":{"type":"http","method":"GET"},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The x402 challenge requires 1,000,000 units (1 USDC) on Base network using the exact scheme","source_url":"https://run.x420.dev/api/puff"},{"claim":"The RUN token contract is 0x7f7F9d18a2b58F808acE9b6db2094E5D9ca33B07 and was created via Clanker","source_url":"https://run.x420.dev"},{"claim":"5 total transactions from 2 unique users with 100% success rate and 2.28s average latency","source_url":"https://run.x420.dev"},{"claim":"Trust score is 83% as reported on the landing page","source_url":"https://run.x420.dev"},{"claim":"Output schema includes message, swapTransactionHash, sendTransactionHash, tokensReceived, and usdcAmountPaid fields","source_url":"https://run.x420.dev/api/puff"}],"useCases":["Autonomous agent purchasing RUN tokens with USDC on Base","Programmatic token swaps triggered by x402 micropayments","Portfolio diversification bots acquiring meme/community tokens"],"bestFor":["AI agents that need to autonomously acquire RUN tokens","Developers experimenting with x402 payment-gated token swaps","Automated trading strategies on Base network"],"notFor":["Large-volume or high-frequency trading (fixed 1 USDC amount, ~2.3s latency)","Users seeking tokens on networks other than Base","Anyone needing detailed API documentation or customizable swap parameters"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:50.142Z"},"updatedAt":"2026-04-23T05:00:32.235Z"}}