{"id":"2453a48c-866a-4995-9fe7-ba31cf4032a8","shortId":"kTBTvh","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 the Base Sepolia testnet. The endpoint follows the x402 payment protocol: callers must include an X-PAYMENT header with a valid payment proof to access the agent. The maximum payment required per call is 500,000 units of the USDC token (contract 0x036CbD53842c5426634e7929541eC2318f3dCF7e) on Base Sepolia, with a timeout of up to 1200 seconds.\n\nQuestflow is a platform for creating autonomous AI \"Clones\" that aggregate onchain markets (Polymarket, Pump.fun, OKX, Opinion Labs, etc.) to discover alpha, execute trades, and generate revenue. This particular endpoint is labeled \"Personal use\" and appears to be a single agent instance within Questflow's swarm infrastructure. The input/output schema is minimal: send a JSON body with an \"input\" string field and receive a \"response\" string field.\n\nDocumentation is sparse — there is no OpenAPI spec, no dedicated docs page, and no detailed API reference available. The endpoint is on a development subdomain (api-dev), suggesting it may be a staging or testnet deployment rather than a production service. Pricing is denominated in testnet USDC, which further indicates this is not yet a mainnet production endpoint.","tags":[],"capabilities":["x402-payment","agent-chat","text-in-text-out","base-sepolia","usdc-micropayment","autonomous-agent","onchain-market-aggregation"],"categories":["llm","crypto","agent"],"synonyms":["questflow agent","ai clone","swarm agent","x402 agent","pay-per-message ai","crypto trading agent","onchain agent","questflow swarm"],"warnings":["Development/staging endpoint (api-dev subdomain) — not production","Payment is in testnet USDC on Base Sepolia, not mainnet","No API documentation, OpenAPI spec, or usage examples available","Max timeout of 1200 seconds suggests potentially long-running agent calls","The existing title 'Personal use' provides no meaningful description of the agent's capabilities","Response schema is inferred from x402 challenge metadata only — actual responses may differ"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x22283a9A198B1b3cF83a8d887EEA4FcC117Ae8dE","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779","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 examples beyond the x402 challenge schema. The endpoint is on a dev subdomain using testnet tokens. The input/output schema is minimal and inferred entirely from the x402 challenge outputSchema field. Most listing details are 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'0x036cbd53842c5426634e7929541ec2318f3dcf7e':100 '1200':110 '500':92 'accept':42 'access':82 'agent':6,21,40,84,152 'agent-chat' 'aggreg':122 'ai':5,20,119 'ai clone' 'alpha':133 'api':194,205 'api-dev':204 'appear':147 'autonom':118 'autonomous-agent' 'avail':196 'base':58,102 'base-sepolia' 'bodi':167 'call':90 'caller':68 'clone':120 'contract':99 'creat':117 'crypto trading agent' 'dedic':188 'denomin':223 'deploy':215 'detail':193 'dev':206 'develop':202 'discov':132 'doc':189 'document':179 'enabl':34 'endpoint':7,22,35,62,141,198,237 'etc':130 'execut':134 'expos':36 'field':172,178 'follow':63 'generat':137 'header':75 'includ':70 'indic':229 'infrastructur':158 'input':170 'input/output':160 'instanc':153 'json':166 'lab':129 'label':143 'mainnet':235 'market':124 'maximum':86 'may':209 'messag':4,19,45 'micropay':15,30 'minim':163 'must':69 'network':12,27 'okx':127 'onchain':123 'onchain agent' 'onchain-market-aggregation' 'openapi':185 'opinion':128 'page':190 'paid':51 'particular':140 'pay':2,17 'pay-per-messag':1,16 'pay-per-message ai' 'payment':66,74,79,87 'per':3,18,52,89 'person':144 'platform':115 'polymarket':125 'price':221 'product':219,236 'proof':80 'protocol':67 'pump.fun':126 'questflow':9,24,38,112,155 'questflow agent' 'questflow swarm' 'rather':216 'receiv':174 'refer':195 'request':53 'requir':88 'respons':50,176 'return':47 'revenu':138 'schema':161 'second':111 'send':164 'sepolia':59,103 'servic':220 'singl':151 'spars':181 'spec':186 'stage':212 'string':171,177 'subdomain':203 'suggest':207 'swarm':11,26,39,157 'swarm agent' 'testnet':60,214,225 'text':44,49 'text-in-text-out' 'timeout':106 'token':98 'trade':135 'unit':94 'usdc':55,97,226 'usdc-micropayment' 'use':54,145 'valid':78 'via':13,28 'within':154 'x':73 'x-payment':72 'x402':14,29,33,65 'x402 agent' 'x402-enabled':32 'x402-payment' 'yet':233","prices":[{"id":"ae973192-5927-4455-8244-700408bf5b50","listingId":"2453a48c-866a-4995-9fe7-ba31cf4032a8","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0x22283a9A198B1b3cF83a8d887EEA4FcC117Ae8dE","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x22283a9A198B1b3cF83a8d887EEA4FcC117Ae8dE","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779","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":"2026-04-18T06:06:26.108Z"}],"sources":[{"listingId":"2453a48c-866a-4995-9fe7-ba31cf4032a8","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T06:06:26.108Z","lastSeenAt":"2026-04-22T02:30:08.204Z"}],"details":{"listingId":"2453a48c-866a-4995-9fe7-ba31cf4032a8","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <your-x402-payment-proof>\" \\\n  -d '{\"input\": \"What are the top prediction market opportunities right now?\"}'","exampleRequest":{"input":"What are the top prediction market opportunities right now?"},"exampleResponse":{"response":"Based on current scanning, the top opportunities 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 USDC payment on Base Sepolia with maxAmountRequired of 500000","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779"},{"claim":"USDC asset contract is 0x036CbD53842c5426634e7929541eC2318f3dCF7e on base-sepolia","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779"},{"claim":"Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"Description in x402 challenge is 'Personal use | Powered by Questflow'","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779"},{"claim":"maxTimeoutSeconds is 1200","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f58abc98e12d91429de779"}],"useCases":["Sending ad-hoc queries to a Questflow AI agent and paying per message via x402","Integrating an autonomous onchain-market-aware agent into a workflow via HTTP POST","Testing x402 micropayment flows with an AI agent on Base Sepolia testnet"],"bestFor":["Developers experimenting with x402 payment protocol for AI agents","Users wanting pay-per-use access to a Questflow swarm agent without subscriptions","Prototyping agent-to-agent communication with micropayments on testnet"],"notFor":["Production trading or financial decisions (this is a testnet/dev endpoint)","Users needing detailed API documentation or guaranteed SLAs","Bulk or high-throughput agent interactions (1200s max timeout per request)"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:47.301Z"},"updatedAt":"2026-04-22T02:30:08.204Z"}}