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Delx Commerce Token Echo API (v1)
x402
Delx Commerce Token Echo API (v1) is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).
Echoes back a submitted text string along with its character length, serving as a minimal pay-per-call test endpoint on the x402 payment protocol.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
A JSON object containing: the echo version number (echo: 1), the original text string submitted, the character length of that string, and a schema identifier string ('delx/util-token-echo-1/v1') confirming which endpoint schema was used.
Example use cases
Validate x402 payment integration
“Can you ping the Delx token echo endpoint with the word 'hello' and confirm the payment went through and I got the text echoed back with its length?”
Agent wallet smoke test
“Before I deploy my agent, I want to do a quick $0.001 USDC test call to the Delx echo API with the text 'test-agent-wallet' — just verify the whole pay-per-result cycle works.”
Confirm verifiable delivery on Base
“Run a test echo call with the string 'base-check' through Delx Commerce so I can see that USDC payment on Base is settling and the response includes the schema identifier.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/token-echo-1?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need the simplest possible way to verify that your x402 micropayment pipeline is working end-to-end — it requires no signup, costs exactly $0.001 USDC per call, and confirms payment receipt, text handling, and verifiable delivery in a single round-trip. It is not meant for production data processing; choose it for integration testing and wallet/payment flow validation only.
Side effects
- Payment not included or insufficient USDC — returns HTTP 402 requiring payment
- Invalid or missing 'text' field in request body — likely returns a 400 bad request
- Network or service unavailability — returns 5xx error
- Unsupported payment network — USDC must be on Base or Solana
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| text | string | Input field: text. |
Output
Schema · Response
{
"type": "json",
"example": {
"echo": 1,
"text": "ping-delx-1",
"length": 11,
"schema": "delx/util-token-echo-1/v1"
}
}Tags
x402
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