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Oblique Markets Echo Service
x402
Oblique Markets Echo Service is a paid API for AI agents from api.oblique.markets, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns an echoed response to confirm API connectivity and validate that x402 payment-gated requests are working correctly
Price / call$0.01
Success—
StatusUnknown
How this service works
Use when an agent is checking that its x402 payment headers and query encoding survive a paid round trip. Returns The query parameters you sent, echoed back with a server timestamp. $0.01.
Output
Returns an echoed confirmation of the incoming request details, including the method and any query parameters supplied, confirming that the x402 payment was processed and the API gateway is reachable.
Example use cases
Verify x402 payment integration
“Can you ping the Oblique Markets echo endpoint with a GET request to confirm that our x402 payment flow is set up correctly and the API is accepting paid calls?”
Debug failed paid API requests
“Something's going wrong with our Oblique Markets API calls — can you hit the echo endpoint first to see if basic connectivity and payment auth are working before we dig deeper?”
Smoke test after deployment
“We just deployed a new environment — can you run a quick echo call against the Oblique Markets paid API to make sure the x402 payment credentials and network routing are all functioning?”
Technical details
Endpoint
GEThttps://api.oblique.markets/api/v1/paid/echoWhen to prefer
Choose this endpoint when you need to verify that x402 micropayment infrastructure is working, test API connectivity before making more expensive calls, or debug payment and authentication issues with the Oblique Markets platform. Not suitable for any real data retrieval or processing task.
Side effects
- Payment failure if USDC balance is insufficient — 402 Payment Required
- Invalid HTTP method (only GET, HEAD, DELETE are accepted) — validation error
- Missing required 'input' object in request body — schema validation failure
- Network timeout if API gateway is unreachable
- Malformed query parameters may be rejected or silently ignored
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"echo": {
"n": "1",
"hello": "world"
},
"message": "This response was paid for via x402 protocol",
"timestamp": "2026-09-12T00:08:59.286Z"
}
}Tags
x402
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