{"id":"46d657cf-8b1f-4f56-b78c-103fa2709172","shortId":"cP2QkY","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 using USDC on Base Sepolia. The endpoint follows the x402 payment protocol: callers must include an X-PAYMENT header with a valid payment proof. Each request costs up to 0.50 USDC (500000 units of the USDC contract at 0x036CbD53842c5426634e7929541eC2318f3dCF7e). The payment is sent to address 0xF1F51bdA16dB595d98E28d32993fd6144EBD77ab.\n\nThe input schema is a simple POST with a single required string field \"input\" (your message to the agent), and the output is a single string field \"response\". No further documentation, OpenAPI spec, or usage examples are provided by the operator. The endpoint is on a development/staging domain (api-dev.intra-tls2.dctx.link), suggesting it may not be production-ready.\n\nQuestflow, the platform behind this endpoint, describes itself as an AI agent economy where users create autonomous \"Clones\" that scan and trade across onchain markets (Polymarket, Pump.fun, OKX, etc.). However, the specific capabilities of this particular swarm agent are not documented beyond the generic \"Personal use\" label. Callers should treat this as an experimental, general-purpose conversational agent endpoint with no guaranteed SLA or detailed capability description.","tags":[],"capabilities":["x402-payment","text-in-text-out","base-sepolia-usdc","pay-per-request","swarm-agent","conversational-agent"],"categories":["llm","crypto"],"synonyms":["questflow agent","x402 chatbot","paid AI agent","micropayment LLM","questflow swarm","crypto-paid chat","base sepolia agent"],"warnings":["Endpoint is on a development domain (api-dev.intra-tls2.dctx.link) — may be unstable or ephemeral","Uses Base Sepolia testnet USDC, not mainnet — real monetary value is not involved","No documentation, OpenAPI spec, or /docs endpoint available","Agent capabilities are completely undocumented beyond 'Personal use' label","The example response is fabricated for illustration; actual agent behavior is unknown"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0xF1F51bdA16dB595d98E28d32993fd6144EBD77ab","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8","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":"0.250","qualityRationale":"No OpenAPI spec, no docs endpoint, no usage examples, and the endpoint is on a dev/staging domain. The only schema information comes from the x402 challenge's outputSchema. The agent's actual capabilities are unknown beyond a generic 'Personal use' label. The example response is entirely 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'0x036cbd53842c5426634e7929541ec2318f3dcf7e':93 '0xf1f51bda16db595d98e28d32993fd6144ebd77ab':100 '500000':86 'accept':42 'across':180 'address':99 'agent':6,21,40,119,169,195,216 'ai':5,20,168 'api-dev.intra-tls2.dctx.link':149 'autonom':174 'base':57 'base sepolia agent' 'base-sepolia-usdc' 'behind':161 'beyond':199 'caller':66,205 'capabl':190,224 'clone':175 'contract':91 'convers':215 'conversational-agent' 'cost':81 'creat':173 'crypto-paid chat' 'describ':164 'descript':225 'detail':223 'development/staging':147 'document':131,198 'domain':148 'economi':170 'enabl':34 'endpoint':7,22,35,60,143,163,217 'etc':186 'exampl':136 'experiment':211 'expos':36 'field':113,127 'follow':61 'general':213 'general-purpos':212 'generic':201 'guarante':220 'header':73 'howev':187 'includ':68 'input':102,114 'label':204 'market':182 'may':152 'messag':4,19,45,116 'micropay':15,30 'micropayment LLM' 'must':67 'network':12,27 'okx':185 'onchain':181 'openapi':132 'oper':141 'output':122 'paid':51 'paid AI agent' 'particular':193 'pay':2,17 'pay-per-messag':1,16 'pay-per-request' 'payment':64,72,77,95 'per':3,18,52 'person':202 'platform':160 'polymarket':183 'post':107 'product':156 'production-readi':155 'proof':78 'protocol':65 'provid':138 'pump.fun':184 'purpos':214 'questflow':9,24,38,158 'questflow agent' 'questflow swarm' 'readi':157 'request':53,80 'requir':111 'respons':50,128 'return':47 'scan':177 'schema':103 'sent':97 'sepolia':58 'simpl':106 'singl':110,125 'sla':221 'spec':133 'specif':189 'string':112,126 'suggest':150 'swarm':11,26,39,194 'swarm-agent' 'text':44,49 'text-in-text-out' 'trade':179 'treat':207 'unit':87 'usag':135 'usdc':55,85,90 'use':54,203 'user':172 'valid':76 'via':13,28 'x':71 'x-payment':70 'x402':14,29,33,63 'x402 chatbot' 'x402-enabled':32 'x402-payment'","prices":[{"id":"ecc4f8c4-a49e-4800-8d53-669f850248c1","listingId":"46d657cf-8b1f-4f56-b78c-103fa2709172","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0xF1F51bdA16dB595d98E28d32993fd6144EBD77ab","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0xF1F51bdA16dB595d98E28d32993fd6144EBD77ab","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8","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":"2026-04-18T06:06:22.911Z"}],"sources":[{"listingId":"46d657cf-8b1f-4f56-b78c-103fa2709172","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T06:06:22.911Z","lastSeenAt":"2026-04-22T08:30:22.192Z"}],"details":{"listingId":"46d657cf-8b1f-4f56-b78c-103fa2709172","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <your-x402-payment-header>\" \\\n  -d '{\"input\": \"What markets are trending today?\"}'","exampleRequest":{"input":"What markets are trending today?"},"exampleResponse":{"response":"Based on current data, the top trending markets include..."},"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, paid to 0xF1F51bdA16dB595d98E28d32993fd6144EBD77ab","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8"},{"claim":"Input schema is a POST with a required string field 'input' and output has a required string field 'response'","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8"},{"claim":"Questflow describes itself as an AI agent economy for autonomous clones that scan and trade across onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"Description from x402 challenge is 'Personal use | Powered by Questflow'","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68fa0ad0c87f09b65914cfe8"}],"useCases":["Sending a text prompt to a Questflow swarm agent and receiving a text response","Testing x402 micropayment flows on Base Sepolia testnet","Integrating a pay-per-message AI agent into an autonomous agent pipeline"],"bestFor":["Developers experimenting with x402 payment protocol","Testing micropayment-gated AI agent interactions on testnet","Exploring Questflow's swarm agent capabilities"],"notFor":["Production workloads requiring SLA guarantees or detailed documentation","Users needing mainnet payments (this uses Base Sepolia testnet)","Anyone requiring a well-documented, schema-rich API"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:52.023Z"},"updatedAt":"2026-04-22T08:30:22.192Z"}}