{"slug":"api-delx-ai-api-v1-x402-token-echo-1-d3df68","title":"Echo text with length (probe channel 1)","host":"api.delx.ai","method":"POST","resource":"https://api.delx.ai/api/v1/x402/token-echo-1","category":"market","description":"Echo text with length (probe channel 1). Call when you verify x402 pay→deliver wiring with a trivial payload. Returns echo text, length, echo=1 for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and p","price_listed":0.001,"price_asked":0.001,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":1283,"reported_calls_30d":2,"reported_payers_30d":2,"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"body":{"text":"ping-delx-1"},"bodyType":"json","method":"POST","type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"properties":{"body":{"additionalProperties":true,"properties":{"text":{"description":"Input field: text.","type":"string"}},"required":["text"],"type":"object"},"bodyType":{"const":"json","type":"string"},"method":{"const":"POST","type":"string"},"type":{"const":"http","type":"string"}},"required":["type","method","bodyType","body"],"type":"object"},"output":{"additionalProperties":true,"description":"Bounded first-party JSON result; input is processed in memory and not retained.","properties":{"echo":{"type":"integer"},"length":{"type":"integer"},"schema":{"type":"string"},"text":{"type":"string"}},"type":"object"}},"required":["input","output"],"type":"object"},"history":[{"day":"2026-09-24","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.001,"price_match":true,"latency_ms":1283,"error":null}],"description_full":"Echo text with length (probe channel 1). Call when you verify x402 pay→deliver wiring with a trivial payload. Returns echo text, length, echo=1 for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.","last_updated":"2026-09-17T03:36:46.607Z","schemes":["exact"]}