{"id":"93140739-9bae-4cda-897d-a7f59b19e766","shortId":"KWeFPu","kind":"x402","title":"x402-payable research agent that answers queries via Questflow's AI swarm on Base Sepolia.","tagline":"x402-payable research agent that answers queries via Questflow's AI swarm on Base Sepolia.","description":"The Researcher endpoint is an x402-enabled AI agent hosted on Questflow's swarm infrastructure. It accepts a text prompt (the \"input\" field) via HTTP POST and returns a text response from the agent. Payment is handled through the x402 protocol using USDC on the Base Sepolia testnet, with a maximum cost of 0.5 USDC per request and a timeout of up to 1200 seconds.\n\nQuestflow is a platform focused on autonomous AI agents (\"Clones\") that aggregate onchain markets such as Polymarket, Pump.fun, OKX, and Opinion Labs. While the broader platform emphasizes trading and market scanning, this specific endpoint is labeled \"Researcher,\" suggesting it is oriented toward information retrieval and research tasks rather than direct trade execution. However, no detailed documentation, OpenAPI spec, or usage examples are published for this endpoint beyond the x402 challenge metadata.\n\nBecause the endpoint runs on Base Sepolia (a testnet), it is likely intended for development and experimentation rather than production use. There is no published documentation page, no OpenAPI schema, and the only structured information available comes from the x402 payment challenge. Prospective users should treat this as an experimental or pre-production service.","tags":[],"capabilities":["x402-payment","ai-agent","text-generation","research-query","base-sepolia-usdc","questflow-swarm"],"categories":["llm","crypto"],"synonyms":["Questflow researcher","AI research agent","x402 agent","paid AI query","onchain AI agent","Questflow swarm","crypto research bot"],"warnings":["Endpoint is on Base Sepolia testnet — not suitable for production use","No published documentation or OpenAPI schema","Response format and agent behavior are inferred from minimal x402 challenge metadata","The example response is fabricated based on the output schema; actual responses may differ","maxTimeoutSeconds is 1200 (20 minutes), suggesting potentially long response times"],"endpointUrl":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1ee1d40f924c075ec7b02","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x036CbD53842c5426634e7929541eC2318f3dCF7e","extra":{"name":"USDC","version":"2"},"payTo":"0x8532DA6850DA325cdEe828a4eFc24D7943F8EaDb","scheme":"exact","network":"base-sepolia","mimeType":"application/json","resource":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1ee1d40f924c075ec7b02","description":"Researcher | 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 documentation pages, no usage examples, and the endpoint runs on a testnet. The only structured metadata comes from the x402 challenge. The response schema and behavior are inferred from the outputSchema in the challenge 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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":"2026-04-18T18:30:21.011Z"}],"sources":[{"listingId":"93140739-9bae-4cda-897d-a7f59b19e766","source":"x402_bazaar","sourceId":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1ee1d40f924c075ec7b02","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:30:21.011Z","lastSeenAt":"2026-04-22T07:00:11.613Z"}],"details":{"listingId":"93140739-9bae-4cda-897d-a7f59b19e766","quickStartSnippet":"curl -X POST https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1ee1d40f924c075ec7b02 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402_payment_token>\" \\\n  -d '{\"input\": \"What are the latest trends in DeFi lending?\"}'","exampleRequest":{"input":"What are the latest trends in DeFi lending?"},"exampleResponse":{"response":"Recent trends in DeFi lending include the rise of real-world asset (RWA) collateralization, cross-chain lending protocols, and variable-rate optimization strategies..."},"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 (0.5 USDC) and maxTimeoutSeconds of 1200","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1ee1d40f924c075ec7b02"},{"claim":"The endpoint description from the x402 challenge is 'Researcher | Powered by Questflow'","source_url":"https://api-dev.intra-tls2.dctx.link/x402/swarm/qrn:swarm:68f1ee1d40f924c075ec7b02"},{"claim":"Questflow aggregates Polymarket, Pump.fun, Opinion Labs, OKX and other onchain markets","source_url":"https://api-dev.intra-tls2.dctx.link"},{"claim":"No /docs, /api, /pricing, or /README pages are available","source_url":"https://api-dev.intra-tls2.dctx.link/docs"}],"useCases":["Sending research questions to an AI agent and receiving text answers","Integrating a pay-per-query AI researcher into an agent pipeline via x402","Experimenting with x402 payment flows on Base Sepolia testnet"],"bestFor":["Developers exploring x402 payment-gated AI endpoints","Agent-to-agent workflows needing a research sub-agent","Testing pay-per-call AI services on a testnet"],"notFor":["Production workloads requiring guaranteed uptime and mainnet payments","Users needing detailed, documented API contracts or OpenAPI specs","Direct trade execution or market order placement"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:15:41.312Z"},"updatedAt":"2026-04-22T07:00:11.613Z"}}