{"id":"ad9ca89d-7db9-43b2-8940-ec5e9f7d7387","shortId":"9JqKFZ","kind":"x402","title":"Buy DIR tokens with a custom USDC amount via x402 payment on Base network","tagline":"Buy DIR tokens with a custom USDC amount via x402 payment on Base network","description":"This x402 endpoint allows agents and users to purchase DIR tokens (contract 0x78e2bABb02BAECeA3449fA3Bea7b190B2e49DB07) by spending a custom amount of USDC on the Base network. The endpoint accepts a POST request with an optional `amount` field specifying the USDC value to spend (e.g., '10', '0.5'). If no amount is provided, it defaults to 5 USDC. The maximum payment accepted per call is 5 USDC (maxAmountRequired: 5000000 in 6-decimal USDC units). Payment is routed to 0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd.\n\nOn success, the endpoint returns a JSON object containing the swap transaction hash, send transaction hash, the number of DIR tokens received, and the USDC amount paid. The DIR token was created via Clanker and is viewable on clanker.world. According to the landing page, the service has processed 5 total transactions with a 100% success rate, average latency of 2.69 seconds, and a trust score of 85%.\n\nThe endpoint is live and returns a valid x402 challenge (version 1, scheme: exact). Documentation beyond the landing page is not available — the /docs, /api, /pricing, and /README paths all return placeholder pages. The x402 outputSchema embedded in the challenge is the primary source of technical detail.","tags":[],"capabilities":["token-swap","usdc-payment","base-network","x402-exact-scheme","custom-amount","erc20-purchase"],"categories":["defi","crypto"],"synonyms":["DIR token purchase","USDC to DIR swap","Base chain token buy","x402 token swap","Clanker token purchase","DIR ERC-20 buy"],"warnings":["No documentation available — /docs, /api, /pricing, /README all return placeholder pages","Response example is inferred from outputSchema, not from an actual observed response","Maximum payment per request is 5 USDC (5000000 in 6-decimal units), which limits transaction size","DIR is a Clanker-launched token — exercise caution regarding liquidity and token legitimacy","Very low transaction volume (5 total transactions reported)"],"endpointUrl":"https://dir.x420.dev/api/puff-custom","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://dir.x420.dev/api/puff-custom","description":"Buy custom USDC amount worth of DIR tokens 0x78e2bABb02BAECeA3449fA3Bea7b190B2e49DB07","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"amount":{"type":"string","required":false,"description":"Optional amount in USDC (e.g., '10', '10.5', '0.5'). Defaults to 5 if not provided."}}},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"maxAmountRequired":"5000000","maxTimeoutSeconds":120}]},"qualityScore":"0.520","qualityRationale":"The x402 challenge is live and includes a useful outputSchema describing both input and output fields. However, there is no OpenAPI spec, no dedicated documentation (all doc paths return placeholder pages), and the response example had to be inferred from the schema. Transaction stats are minimal (5 total). The max amount of 5 USDC limits 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'/docs':194 '/pricing':196 '/readme':198 '0.5':72 '0x78e2babb02baecea3449fa3bea7b190b2e49db07':41 '0x93109d14f6665a9c9675290d3cd5a6c07bbafdbd':103 '1':182 '10':71 '100':157 '2.69':163 '5':81,90,152 '5000000':93 '6':95 '85':170 'Base chain token buy' 'Clanker token purchase' 'DIR ERC-20 buy' 'DIR token purchase' 'USDC to DIR swap' 'accept':55,86 'accord':143 'agent':33 'allow':32 'amount':8,22,46,62,75,129 'avail':192 'averag':160 'base':13,27,51 'base-network' 'beyond':186 'buy':1,15 'call':88 'challeng':180,210 'clanker':137 'clanker.world':142 'contain':112 'contract':40 'creat':135 'custom':6,20,45 'custom-amount' 'decim':96 'default':79 'detail':217 'dir':2,16,38,123,132 'document':185 'e.g':70 'embed':207 'endpoint':31,54,107,172 'erc20-purchase' 'exact':184 'field':63 'hash':116,119 'json':110 'land':146,188 'latenc':161 'live':174 'maxamountrequir':92 'maximum':84 'network':14,28,52 'number':121 'object':111 'option':61 'outputschema':206 'page':147,189,203 'paid':130 'path':199 'payment':11,25,85,99 'per':87 'placehold':202 'post':57 'primari':213 'process':151 'provid':77 'purchas':37 'rate':159 'receiv':125 'request':58 'return':108,176,201 'rout':101 'scheme':183 'score':168 'second':164 'send':117 'servic':149 'sourc':214 'specifi':64 'spend':43,69 'success':105,158 'swap':114 'technic':216 'token':3,17,39,124,133 'token-swap' 'total':153 'transact':115,118,154 'trust':167 'unit':98 'usdc':7,21,48,66,82,91,97,128 'usdc-payment' 'user':35 'valid':178 'valu':67 'version':181 'via':9,23,136 'viewabl':140 'x402':10,24,30,179,205 'x402 token swap' 'x402-exact-scheme'","prices":[{"id":"bcfb80ec-4c50-4692-8bb5-d59d216f9be5","listingId":"ad9ca89d-7db9-43b2-8940-ec5e9f7d7387","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"5000000","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://dir.x420.dev/api/puff-custom","description":"Buy custom USDC amount worth of DIR tokens 0x78e2bABb02BAECeA3449fA3Bea7b190B2e49DB07","outputSchema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"amount":{"type":"string","required":false,"description":"Optional amount in USDC (e.g., '10', '10.5', '0.5'). Defaults to 5 if not provided."}}},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"maxAmountRequired":"5000000","maxTimeoutSeconds":120}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":120},"createdAt":"2026-04-18T18:31:01.616Z"}],"sources":[{"listingId":"ad9ca89d-7db9-43b2-8940-ec5e9f7d7387","source":"x402_bazaar","sourceId":"https://dir.x420.dev/api/puff-custom","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:31:01.616Z","lastSeenAt":"2026-04-23T04:00:35.671Z"}],"details":{"listingId":"ad9ca89d-7db9-43b2-8940-ec5e9f7d7387","quickStartSnippet":"curl -X POST https://dir.x420.dev/api/puff-custom \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{\"amount\": \"5\"}'","exampleRequest":{"amount":"5"},"exampleResponse":{"message":"Successfully swapped USDC for DIR tokens","tokensReceived":"1250.00","usdcAmountPaid":"5.00","sendTransactionHash":"0x789abc...012def","swapTransactionHash":"0xabc123...def456"},"schema":{"input":{"type":"http","method":"POST","bodyType":"json","bodyFields":{"amount":{"type":"string","required":false,"description":"Optional amount in USDC (e.g., '10', '10.5', '0.5'). Defaults to 5 if not provided."}}},"output":{"message":"string","tokensReceived":"string","usdcAmountPaid":"string","sendTransactionHash":"string | null","swapTransactionHash":"string | null"}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a valid x402 challenge with maxAmountRequired of 5000000 and scheme 'exact' on Base network","source_url":"https://dir.x420.dev/api/puff-custom"},{"claim":"DIR token contract address is 0x78e2bABb02BAECeA3449fA3Bea7b190B2e49DB07, created via Clanker","source_url":"https://dir.x420.dev"},{"claim":"5 total transactions, 100% success rate, 2.69s average latency, 85% trust score","source_url":"https://dir.x420.dev"},{"claim":"Payment is made in USDC (asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913) to address 0x93109d14F6665a9c9675290D3cD5A6c07bBAfdbd","source_url":"https://dir.x420.dev/api/puff-custom"}],"useCases":["Programmatically purchasing DIR tokens with USDC via an AI agent","Automating token swaps on Base network through x402 payment protocol","Integrating DIR token acquisition into agent workflows without manual wallet interaction"],"bestFor":["AI agents that need to acquire DIR tokens autonomously","Developers building x402-compatible payment flows on Base","Automated trading or portfolio strategies involving Clanker-launched tokens"],"notFor":["Purchasing tokens on networks other than Base","Large USDC swaps exceeding 5 USDC per transaction","Users seeking detailed API documentation or OpenAPI specs"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:16.487Z"},"updatedAt":"2026-04-23T04:00:35.671Z"}}