{"id":"fcf029d2-f939-47ba-a9f2-049bc9a8db68","shortId":"9TpYL2","kind":"x402","title":"Pay-per-call AI agent swarm endpoint on Questflow via x402 micropayments on Base","tagline":"Pay-per-call AI agent swarm endpoint on Questflow via x402 micropayments on Base","description":"This endpoint exposes a Questflow \"swarm\" agent accessible via the x402 payment protocol on the Base network. Callers send a POST request with a text message in the `input` field and receive a text `response` from the agent. Payment is handled through an X-PAYMENT header using USDC (asset 0x8335…2913) on Base, with a maximum charge of 0.50 USDC per call (500000 in 6-decimal units) and a timeout of up to 1200 seconds.\n\nQuestflow is a platform for creating autonomous AI \"clones\" that scan and trade across on-chain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs. The specific swarm behind this endpoint (ID qrn:swarm:68dec75db36f34e392f8b90f) has a minimal description (\"Hello\"), so its exact capabilities, persona, or domain specialization are unknown. The endpoint is discoverable and live, returning a proper x402 challenge when called without payment.\n\nBecause there is no OpenAPI spec, no dedicated documentation page, and only a one-word description for this particular swarm, consumers should treat this as an exploratory or experimental endpoint. The input/output schema is simple: one string in, one string out. There is no information about rate limits, SLA, or content moderation policies.","tags":[],"capabilities":["x402-payment","ai-agent-chat","base-network","usdc-payment","post-request","text-in-text-out","autonomous-agent-swarm"],"categories":["llm","crypto"],"synonyms":["questflow agent","questflow swarm","x402 ai agent","pay-per-message agent","on-chain ai agent","micropayment chatbot","base network agent","questflow x402"],"warnings":["No OpenAPI or dedicated API documentation available","Swarm description is only 'Hello' — agent capabilities are completely unknown","No rate limits, SLA, or content moderation policies documented","Example response is fabricated to illustrate the schema; actual output is unknown","Maximum cost per call is 0.50 USDC but actual charges may vary"],"endpointUrl":"https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0xf33CAC2bB6B26e7615B1873c84e4174Ae193A9aa","extra":{"name":"AUSD","version":"2"},"payTo":"0x42Fb3945A122E913191E7a81c9b28D1A4e9ba13e","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f","description":"Hello | Powered by Questflow","outputSchema":{"input":{"type":"http","method":"POST","bodyFields":{"input":{"type":"string","required":true,"description":"Your message to the agent"}},"discoverable":true},"output":{"response":{"type":"string","required":true,"description":"Response from the agent"}}},"maxAmountRequired":"500000","maxTimeoutSeconds":1200}]},"qualityScore":"0.250","qualityRationale":"The endpoint is live and returns a valid x402 challenge with a basic input/output schema, but there is no OpenAPI spec, no documentation, no meaningful description of the swarm's capabilities, and no pricing page or rate-limit info. The listing is largely inferred from the x402 challenge metadata and the Questflow 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'0x8335':81 '1200':105 '2913':82 '500000':94 '6':96 '68dec75db36f34e392f8b90f':142 'access':38 'across':120 'agent':6,21,37,68 'ai':5,20,114 'ai-agent-chat' 'asset':80 'autonom':113 'autonomous-agent-swarm' 'base':15,30,46,84 'base network agent' 'base-network' 'behind':136 'call':4,19,93,170 'caller':48 'capabl':151 'chain':123 'challeng':168 'charg':88 'clone':115 'consum':194 'content':224 'creat':112 'decim':97 'dedic':180 'descript':146,189 'discover':161 'document':181 'domain':154 'endpoint':8,23,32,138,159,203 'exact':150 'experiment':202 'exploratori':200 'expos':33 'field':60 'handl':71 'header':77 'hello':147 'id':139 'inform':218 'input':59 'input/output':205 'lab':132 'limit':221 'live':163 'market':124 'maximum':87 'messag':56 'micropay':13,28 'micropayment chatbot' 'minim':145 'moder':225 'network':47 'okx':129 'on-chain':121 'on-chain ai agent' 'one':187,209,212 'one-word':186 'openapi':177 'opinion':131 'page':182 'particular':192 'pay':2,17 'pay-per-cal':1,16 'pay-per-message agent' 'payment':42,69,76,172 'per':3,18,92 'persona':152 'platform':110 'polici':226 'polymarket':127 'post':51 'post-request' 'proper':166 'protocol':43 'pump.fun':128 'qrn':140 'questflow':10,25,35,107 'questflow agent' 'questflow swarm' 'questflow x402' 'rate':220 'receiv':62 'request':52 'respons':65 'return':164 'scan':117 'schema':206 'second':106 'send':49 'simpl':208 'sla':222 'spec':178 'special':155 'specif':134 'string':210,213 'swarm':7,22,36,135,141,193 'text':55,64 'text-in-text-out' 'timeout':101 'trade':119 'treat':196 'unit':98 'unknown':157 'usdc':79,91 'usdc-payment' 'use':78 'via':11,26,39 'without':171 'word':188 'x':75 'x-payment':74 'x402':12,27,41,167 'x402 ai agent' 'x402-payment'","prices":[{"id":"cdbf8ff7-be87-4cac-a780-3d3db2a40261","listingId":"fcf029d2-f939-47ba-a9f2-049bc9a8db68","amountUsd":null,"unit":"per_call","nativeCurrency":"AUSD","nativeAmount":"500000","chain":"base","payTo":"0x42Fb3945A122E913191E7a81c9b28D1A4e9ba13e","paymentMethod":"x402-ausd","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0xf33CAC2bB6B26e7615B1873c84e4174Ae193A9aa","extra":{"name":"AUSD","version":"2"},"payTo":"0x42Fb3945A122E913191E7a81c9b28D1A4e9ba13e","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f","description":"Hello | Powered by Questflow","outputSchema":{"input":{"type":"http","method":"POST","bodyFields":{"input":{"type":"string","required":true,"description":"Your message to the agent"}},"discoverable":true},"output":{"response":{"type":"string","required":true,"description":"Response from the agent"}}},"maxAmountRequired":"500000","maxTimeoutSeconds":1200}],"asset_contract":"0xf33CAC2bB6B26e7615B1873c84e4174Ae193A9aa","max_timeout_seconds":1200},"createdAt":"2026-04-18T18:30:25.225Z"}],"sources":[{"listingId":"fcf029d2-f939-47ba-a9f2-049bc9a8db68","source":"x402_bazaar","sourceId":"https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:25.225Z","lastSeenAt":"2026-04-24T15:01:04.693Z"}],"details":{"listingId":"fcf029d2-f939-47ba-a9f2-049bc9a8db68","quickStartSnippet":"curl -X POST https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <your-x402-payment-token>\" \\\n  -d '{\"input\": \"What markets are trending today?\"}'","exampleRequest":{"input":"What markets are trending today?"},"exampleResponse":{"response":"Currently trending: Polymarket US election markets are seeing high volume, and several new meme tokens launched on Pump.fun in the last hour."},"schema":{"input":{"type":"http","method":"POST","bodyFields":{"input":{"type":"string","required":true,"description":"Your message to the agent"}},"discoverable":true},"output":{"response":{"type":"string","required":true,"description":"Response from the agent"}}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Payment is in USDC on Base with maxAmountRequired of 500000 (0.50 USDC) and maxTimeoutSeconds of 1200","source_url":"https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f"},{"claim":"Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other on-chain markets","source_url":"https://api.questflow.ai"},{"claim":"The endpoint accepts POST with an 'input' string field and returns a 'response' string field","source_url":"https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f"},{"claim":"Pay-to address is 0x42Fb3945A122E913191E7a81c9b28D1A4e9ba13e and USDC asset is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","source_url":"https://api.questflow.ai/x402/swarm/qrn:swarm:68dec75db36f34e392f8b90f"}],"useCases":["Sending ad-hoc queries to an autonomous AI agent swarm and paying per call with USDC on Base","Integrating an AI agent into a crypto trading workflow via x402 micropayments","Programmatically interacting with Questflow swarm agents from other AI agents or scripts"],"bestFor":["Developers experimenting with x402 payment-gated AI endpoints","Agent-to-agent communication where USDC micropayments are acceptable","Quick prototyping of pay-per-call AI chat integrations on Base"],"notFor":["Production workloads requiring documented SLAs, rate limits, or guaranteed uptime","Users who need detailed knowledge of the agent's domain expertise before calling","Free or high-volume chat use cases where per-call USDC payments are impractical"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:37.081Z"},"updatedAt":"2026-04-24T15:01:04.693Z"}}