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Slidingbox.ai x402 Resource Verifier
x402
Slidingbox.ai x402 Resource Verifier is a paid API for AI agents from slidingbox.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Checks whether a given HTTP URL is a live, payable x402 resource and returns its payment details and catalog metadata
Price / call$0.01
Success—
StatusUnknown
How this service works
Slidingbox.ai is a studio that builds and operates micro-SaaS APIs for machine-to-machine and agent-to-agent transactions, priced per call.
Output
Returns a JSON object indicating whether the URL is payable via x402, the live payment address and price in USD, the catalog record (method, pay-to, price, last seen timestamp), HTTP status code, challenge shape, reason codes, whether price and pay-to match the catalog, and the timestamp of the check.
Example use cases
Pre-flight x402 payment check
“Before I call https://api.example.com/data/prices, verify it's a real x402 endpoint and tell me what it costs and which address to pay so I know the transaction details upfront.”
Catalog consistency audit
“Check whether https://api.someservice.io/v1/lookup is still live as an x402 resource and confirm that the price and pay-to address match what's in the catalog — flag it if anything has drifted.”
New x402 API discovery validation
“I just heard about a new pay-per-call API at https://api.newprovider.com/v2/analyze — can you verify it actually responds with a 402 and give me its payment details before I integrate it?”
Technical details
Endpoint
GEThttps://slidingbox.ai/v1/verify?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to confirm that a specific URL is correctly configured as an x402 payable resource before attempting payment, when auditing whether catalog metadata is consistent with live endpoint behavior, or when discovering whether a new API endpoint supports the x402 payment protocol. Prefer this over manual inspection or generic HTTP probing tools when you need structured, machine-readable payment metadata in a single call.
Side effects
- Resource URL is not a valid absolute http/https URI — returns validation error
- Target URL does not return a 402 status — payable field is false, challenge_shape may be null
- Network timeout or unreachable host — check may fail with connection error
- URL is a template/pattern URL rather than a concrete resource — flagged via reason_codes template_url
- Price or pay-to address mismatch between live response and catalog — flagged via price_matches_catalog or pay_to_matches_catalog false
Output
Schema · Response
{
"type": "json",
"example": {
"live": {
"pay_to": "0xfb745c37586da6a02f96c19ef0124a38a36f1606",
"price_usd": 0.02
},
"catalog": {
"method": "GET",
"pay_to": "0xfb745c37586da6a02f96c19ef0124a38a36f1606",
"seen_at": "2026-09-08T06:15:00.000Z",
"price_usd": 0.02
},
"payable": true,
"resource": "https://api.onesource.io/api/chain/block-number",
"checked_at": "2026-09-08T12:00:00.000Z",
"http_status": 402,
"reason_codes": [
"template_url"
],
"challenge_shape": "PAYABLE",
"last_changed_at": null,
"price_matches_catalog": true,
"pay_to_matches_catalog": true
}
}Tags
x402
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