{"id":"a04b7e3d-317e-44b1-8e47-211cdf723f91","shortId":"WXyPKt","kind":"x402","title":"Pay-per-message AI agent endpoint on Questflow's swarm network via x402 micropayments.","tagline":"Pay-per-message AI agent endpoint on Questflow's swarm network via x402 micropayments.","description":"This x402-enabled endpoint exposes a Questflow \"swarm\" agent that accepts a text message and returns a text response, paid per-request with USDC on Base Sepolia. The endpoint follows the x402 payment protocol (version 1): callers must include an X-PAYMENT header to satisfy a micropayment of up to 0.50 USDC (500000 units of the USDC contract on Base Sepolia) per request.\n\nQuestflow is a platform for creating autonomous AI agents (\"Clones\") that aggregate onchain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs. While the landing page focuses on trading and market-scanning clones, this specific endpoint is labeled \"Personal use\" and provides a generic agent chat interface: you POST a JSON body with an `input` string field and receive a JSON response containing a `response` string. The maximum timeout per request is 1200 seconds (20 minutes), suggesting the agent may perform non-trivial processing.\n\nDocumentation is minimal — there is no OpenAPI spec, no dedicated docs page, and no detailed pricing page. The output schema is embedded in the x402 challenge itself. The endpoint is on a development subdomain (`api-dev`), and payment is on the Base Sepolia testnet, indicating this is likely a staging or preview deployment rather than a production service.","tags":[],"capabilities":["x402-payment","agent-chat","base-sepolia-usdc","micropayment","autonomous-agent","onchain-market-aggregation","swarm-endpoint"],"categories":["llm","crypto","agent"],"synonyms":["Questflow agent","AI clone chat","x402 agent endpoint","pay-per-message AI","onchain AI agent","swarm agent","Questflow swarm","crypto AI assistant"],"warnings":["Endpoint is on a development subdomain (api-dev) and uses Base Sepolia testnet — not production-ready","No OpenAPI specification or documentation endpoint found (all /docs, /api, /pricing, /README return 404)","Response example is inferred; no actual response sample is available","maxTimeoutSeconds is 1200 (20 minutes), which may indicate long-running or unreliable processing","The listing title 'Personal use' is vague and may not reflect actual agent capabilities"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x66Ce83F9627B2f1167187BD0E91D7C5FC71b2B1E","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62","description":"Personal use | 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":"0.300","qualityRationale":"No OpenAPI spec, no docs endpoint, no pricing page, and the endpoint is on a dev/testnet subdomain. The only schema information comes from the x402 challenge's outputSchema. The response example is entirely inferred. Very sparse 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'1':68 '1200':170 '20':172 '500000':86 'AI clone chat' 'Questflow agent' 'Questflow swarm' 'accept':42 'agent':6,21,40,105,142,176 'agent-chat' 'aggreg':108 'ai':5,20,104 'api':218 'api-dev':217 'autonom':103 'autonomous-agent' 'base':58,93,225 'base-sepolia-usdc' 'bodi':149 'caller':69 'challeng':208 'chat':143 'clone':106,130 'contain':160 'contract':91 'creat':102 'crypto AI assistant' 'dedic':192 'deploy':236 'detail':197 'dev':219 'develop':215 'doc':193 'document':183 'embed':204 'enabl':34 'endpoint':7,22,35,61,133,211 'expos':36 'field':154 'focus':123 'follow':62 'generic':141 'header':76 'includ':71 'indic':228 'input':152 'interfac':144 'json':148,158 'lab':118 'label':135 'land':121 'like':231 'market':110,128 'market-scan':127 'maximum':165 'may':177 'messag':4,19,45 'micropay':15,30,80 'micropayment' 'minim':185 'minut':173 'must':70 'network':12,27 'non':180 'non-trivi':179 'okx':115 'onchain':109 'onchain AI agent' 'onchain-market-aggregation' 'openapi':189 'opinion':117 'output':201 'page':122,194,199 'paid':51 'pay':2,17 'pay-per-messag':1,16 'pay-per-message AI' 'payment':65,75,221 'per':3,18,53,95,167 'per-request':52 'perform':178 'person':136 'platform':100 'polymarket':113 'post':146 'preview':235 'price':198 'process':182 'product':240 'protocol':66 'provid':139 'pump.fun':114 'questflow':9,24,38,97 'rather':237 'receiv':156 'request':54,96,168 'respons':50,159,162 'return':47 'satisfi':78 'scan':129 'schema':202 'second':171 'sepolia':59,94,226 'servic':241 'spec':190 'specif':132 'stage':233 'string':153,163 'subdomain':216 'suggest':174 'swarm':11,26,39 'swarm agent' 'swarm-endpoint' 'testnet':227 'text':44,49 'timeout':166 'trade':125 'trivial':181 'unit':87 'usdc':56,85,90 'use':137 'version':67 'via':13,28 'x':74 'x-payment':73 'x402':14,29,33,64,207 'x402 agent endpoint' 'x402-enabled':32 'x402-payment'","prices":[{"id":"93a1e367-fe60-4191-bfb8-41c9bd7533f3","listingId":"a04b7e3d-317e-44b1-8e47-211cdf723f91","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0x66Ce83F9627B2f1167187BD0E91D7C5FC71b2B1E","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x66Ce83F9627B2f1167187BD0E91D7C5FC71b2B1E","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62","description":"Personal use | 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":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","max_timeout_seconds":1200},"createdAt":"2026-04-18T06:06:28.637Z"}],"sources":[{"listingId":"a04b7e3d-317e-44b1-8e47-211cdf723f91","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T06:06:28.637Z","lastSeenAt":"2026-04-22T02:30:08.605Z"}],"details":{"listingId":"a04b7e3d-317e-44b1-8e47-211cdf723f91","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -d '{\"input\": \"What markets are trending today?\"}'","exampleRequest":{"input":"What markets are trending today?"},"exampleResponse":{"response":"Currently trending: Polymarket's Fed rate decision contract is 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":"x402 challenge requires up to 500000 units of USDC on Base Sepolia with payTo address 0x66Ce83F9627B2f1167187BD0E91D7C5FC71b2B1E","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62"},{"claim":"Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"The endpoint accepts a POST with an 'input' string field and returns a 'response' string, per the outputSchema in the x402 challenge","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62"},{"claim":"maxTimeoutSeconds is 1200 for this endpoint","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f883197aa0f71b3c5e8b62"}],"useCases":["Sending a text prompt to a Questflow AI agent and receiving a response via micropayment","Integrating autonomous AI agent capabilities into workflows using x402 payment protocol","Testing pay-per-use agent interactions on Base Sepolia testnet"],"bestFor":["Developers experimenting with x402 payment-gated AI agent endpoints","Users exploring Questflow's autonomous agent platform","Prototyping micropayment-based conversational AI integrations on testnet"],"notFor":["Production workloads requiring mainnet payments and SLAs","Users needing detailed API documentation or OpenAPI specs","High-throughput, low-latency chat applications (20-minute timeout suggests heavy processing)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:43.358Z"},"updatedAt":"2026-04-22T02:30:08.605Z"}}