{"id":"9621c3ab-7c48-490f-a848-97a81d817d25","shortId":"3brtmv","kind":"x402","title":"Pay-per-message AI agent on Questflow's swarm network via x402 micropayments","tagline":"Pay-per-message AI agent 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 an AI-generated response. Payment is handled via the x402 protocol on the Base Sepolia testnet using USDC (contract 0x036CbD53842c5426634e7929541eC2318f3dCF7e). The maximum payment required per request is 500,000 units (likely 0.50 USDC given 6-decimal USDC), with a maximum timeout of 1,200 seconds.\n\nThe endpoint accepts HTTP POST requests with a JSON body containing a single required field, `input` (string), and returns a JSON response with a `response` field (string). No OpenAPI spec or detailed API documentation is available; the schema is derived entirely from the x402 challenge's `outputSchema`. The endpoint is labeled \"Personal use\" with no further description from the provider.\n\nQuestflow is a platform focused on autonomous AI agents (\"Clones\") that aggregate onchain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs. The broader platform offers trading, signal generation, and token-based economics. However, the specific capabilities of this particular swarm agent are not documented beyond accepting a text input and returning a text response. This endpoint is on a development/staging domain (`api-dev`), suggesting it may not be production-stable.","tags":[],"capabilities":["x402-payment","ai-agent-chat","text-in-text-out","base-sepolia-usdc","questflow-swarm"],"categories":["llm","crypto"],"synonyms":["questflow agent","ai clone","swarm agent","x402 chat","pay-per-message ai","questflow swarm","crypto ai agent"],"warnings":["Endpoint is on a development domain (api-dev), not production — may be unstable or ephemeral","No OpenAPI spec or API documentation available; schema derived solely from x402 challenge","Payment is on Base Sepolia testnet, not mainnet — testnet tokens have no real value","The specific agent's capabilities are completely undocumented beyond 'Personal use' label","Response example is fabricated for illustration; actual agent behavior is unknown"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x8dfc9cb7C26720B889a296928814E8cb0495C84D","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8","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 dedicated API documentation, no usage examples, and the endpoint is on a dev/staging domain. The only schema information comes from the x402 challenge outputSchema. The response example is entirely 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'000':75 '0x036cbd53842c5426634e7929541ec2318f3dcf7e':66 '1':89 '200':90 '500':74 '6':81 'accept':40,94,199 'agent':6,20,38,160,194 'aggreg':163 'ai':5,19,48,159 'ai clone' 'ai-agent-chat' 'ai-gener':47 'api':124,216 'api-dev':215 'autonom':158 'avail':127 'base':60,184 'base-sepolia-usdc' 'beyond':198 'bodi':101 'broader':175 'capabl':189 'challeng':136 'clone':161 'contain':102 'contract':65 'crypto ai agent' 'decim':82 'deriv':131 'descript':148 'detail':123 'dev':217 'development/staging':213 'document':125,197 'domain':214 'econom':185 'enabl':32 'endpoint':33,93,140,209 'entir':132 'expos':34 'field':106,117 'focus':156 'generat':49,180 'given':80 'handl':53 'howev':186 'http':95 'input':107,202 'json':100,112 'lab':173 'label':142 'like':77 'market':165 'maximum':68,86 'may':220 'messag':4,18,43 'micropay':14,28 'network':11,25 'offer':177 'okx':170 'onchain':164 'openapi':120 'opinion':172 'outputschema':138 'particular':192 'pay':2,16 'pay-per-messag':1,15 'pay-per-message ai' 'payment':51,69 'per':3,17,71 'person':143 'platform':155,176 'polymarket':168 'post':96 'product':224 'production-st':223 'protocol':57 'provid':151 'pump.fun':169 'questflow':8,22,36,152 'questflow agent' 'questflow swarm' 'questflow-swarm' 'request':72,97 'requir':70,105 'respons':50,113,116,207 'return':45,110,204 'schema':129 'second':91 'sepolia':61 'signal':179 'singl':104 'spec':121 'specif':188 'stabl':225 'string':108,118 'suggest':218 'swarm':10,24,37,193 'swarm agent' 'testnet':62 'text':42,201,206 'text-in-text-out' 'timeout':87 'token':183 'token-bas':182 'trade':178 'unit':76 'usdc':64,79,83 'use':63,144 'via':12,26,54 'x402':13,27,31,56,135 'x402 chat' 'x402-enabled':30 'x402-payment'","prices":[{"id":"6cb70c66-7aeb-4270-9fe5-64303be4e9e4","listingId":"9621c3ab-7c48-490f-a848-97a81d817d25","amountUsd":null,"unit":"per_call","nativeCurrency":"USDC","nativeAmount":"500000","chain":"base-sepolia","payTo":"0x8dfc9cb7C26720B889a296928814E8cb0495C84D","paymentMethod":"x402-usdc","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x8dfc9cb7C26720B889a296928814E8cb0495C84D","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8","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":"2026-04-18T18:30:33.815Z"}],"sources":[{"listingId":"9621c3ab-7c48-490f-a848-97a81d817d25","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:33.815Z","lastSeenAt":"2026-04-22T07:00:12.246Z"}],"details":{"listingId":"9621c3ab-7c48-490f-a848-97a81d817d25","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{\"input\": \"What markets are trending today?\"}'","exampleRequest":{"input":"What markets are trending today?"},"exampleResponse":{"response":"Currently trending markets include prediction markets on the upcoming Fed rate decision and several meme coin launches on Pump.fun."},"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 uses USDC on Base Sepolia with maxAmountRequired of 500000 and maxTimeoutSeconds of 1200","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8"},{"claim":"The endpoint accepts POST with an 'input' string field and returns a 'response' string field","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8"},{"claim":"Questflow platform aggregates Polymarket, Pump.fun, OKX, Opinion Labs and other onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"Payment address is 0x8dfc9cb7C26720B889a296928814E8cb0495C84D","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f8acbe88e91d0ba6c999a8"}],"useCases":["Sending a text query to a Questflow AI agent and receiving a response via x402 micropayment","Programmatic agent-to-agent communication with payment settlement on Base Sepolia","Testing x402 payment flows with a simple chat-style AI endpoint"],"bestFor":["Developers experimenting with x402 payment protocol integrations","Agent-to-agent communication scenarios requiring pay-per-message AI","Prototyping micropayment-gated AI interactions on Base Sepolia testnet"],"notFor":["Production workloads requiring guaranteed uptime (this is a dev endpoint)","Users needing detailed, documented API contracts or OpenAPI specs","Non-crypto users who cannot pay with USDC on Base Sepolia"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:31.209Z"},"updatedAt":"2026-04-22T07:00:12.246Z"}}