{"uid":"cap_0HtwzPSe3I6AgFwss-9s1","slug":"delx-token-echo-2-5138eeab","name":"Delx Token Echo 2","description":"Echo text with length (probe channel 2). Call when you verify a second pay→deliver path with a trivial payload. Returns echo text, length, echo=2 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.","url":"https://api.delx.ai/api/v1/x402/token-echo-2?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"text":{"type":"string","description":"Input field: text."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Pkogj3SDs7ZHaJ9yZVu46","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Echoes input text back with its character length and a fixed echo=2 marker, used to probe a second x402 payment-to-delivery channel.","exampleAgentPrompt":"Echo the text 'hello world' through channel 2 and tell me how long it is — I need to verify this x402 payment path is working correctly.","exampleUseCases":[{"title":"Verify second x402 payment lane","prompt":"Send the word 'ping' through echo channel 2 and confirm it comes back with the right length — I'm testing that my second pay-to-deliver path on Base is functioning."},{"title":"Confirm round-trip before production deploy","prompt":"Before I go live, can you run 'test payload' through Delx echo channel 2 and make sure the text and length come back correctly? I need to know the payment and response path are both solid."},{"title":"Compare two x402 channels side by side","prompt":"Echo 'benchmark string' through channel 2 for me — I want to compare the response time and output against channel 1 to make sure both payment paths behave the same."}],"resultDescription":"Returns a JSON object containing the original echoed text, its character length, and a fixed marker (echo=2) confirming which channel handled the request.","failureModes":["Payment not received or insufficient USDC balance — request rejected before processing","Malformed or missing text field — likely returns an error or empty echo","Network timeout reaching api.delx.ai — no response returned","x402 payment protocol misconfiguration — payment accepted but no delivery response"],"whenToPreferThis":"Choose this endpoint when you need to verify that a second distinct x402 micropayment channel is operational end-to-end with a trivial, zero-risk payload. Prefer it over Echo 1 when you specifically need to exercise or compare a second payment lane. It is not suitable for any real text transformation or data processing task.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T12:51:24.425Z","isFirstParty":false,"canonicalSlug":"delx-token-echo-2-5138eeab"}