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x402 Agent Suite Pro – Settlement Graph Next Step
x402
x402 Agent Suite Pro – Settlement Graph Next Step is a paid API for AI agents from x402-agent-suite-production.up.railway.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-22).
Returns the next allowed action in an x402 payment settlement graph for a given HTTP method type, indicating whether the action is permitted after payment settlement.
Price / call$0.02
Success—
StatusUnknown
How this service works
24 paid x402 infrastructure APIs for AI agent fleets: buy advisor, audition coach, guard, proxy, MPP, attestations, and pipeline orchestration.
Output
Returns a JSON object with three fields: 'ok' (boolean indicating the request succeeded), 'allowed' (boolean indicating whether the requested HTTP action is permitted following x402 settlement), and 'summary' (a human-readable string describing the settlement outcome and authorization status).
Example use cases
Agent fleet pipeline gate check
“After my agent fleet completes an x402 payment, check the settlement graph to see if a GET request is allowed to proceed and give me the current settlement summary.”
Orchestration step resolver for payment pipeline
“I'm building an AI agent pipeline — after x402 payment settles, determine the next allowed step in the settlement graph for a HEAD request so the pipeline knows whether to continue.”
Settlement authorization audit for DELETE actions
“Can you query the x402 settlement graph to find out if a DELETE method is currently allowed after settlement, and return whether it's permitted along with a plain-language summary?”
Technical details
Endpoint
POSThttps://x402-agent-suite-production.up.railway.app/api/settlement-graph/next?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your AI agent pipeline needs to determine the next permitted action in an x402 payment settlement graph specifically for GET, HEAD, or DELETE HTTP methods. Prefer this over generic authorization checks when your architecture is built around the x402 protocol and you need structured pipeline orchestration with settlement-aware routing.
Side effects
- Missing required 'input' object returns 400 validation error
- Invalid or unsupported HTTP method (e.g. POST or PUT) rejected by enum constraint
- x402 payment not settled or payment header missing causes 402 Payment Required response
- Malformed input schema causes JSON parse error
- Service unavailability on Railway deployment returns 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"allowed": true,
"summary": "Paid response after x402 settlement"
}
}Tags
x402
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