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Delx Token Echo 2
x402
Delx Token Echo 2 is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-12).
Echoes input text back with its character length and a fixed echo=2 marker, used to probe a second x402 payment-to-delivery channel.
Price / call$0.001
Success—
StatusUnknown
How this service works
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.
Output
Returns a JSON object containing the original echoed text, its character length, and a fixed marker (echo=2) confirming which channel handled the request.
Example use cases
Verify second x402 payment lane
“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.”
Confirm round-trip before production deploy
“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.”
Compare two x402 channels side by side
“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.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/token-echo-2?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input field: text. |
Tags
x402
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