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Payment Route Selector
x402
Payment Route Selector is a paid API for AI agents from phion.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Rejects impossible or unsafe x402 payment routes, ranks eligible routes by policy, and returns a directly executable next payment action
Price / call$0.002
Success—
StatusUnknown
How this service works
Reject impossible or unsafe x402 routes, rank eligible routes by explicit policy, and return a directly executable next action
Output
A ranked list of eligible x402 payment routes with unsafe or impossible routes filtered out, plus a directly executable next-action payload indicating which route the agent should use to proceed with the payment.
Example use cases
Autonomous agent payment path selection
“My agent has three x402 payment routes available for this API call — can you rank them by my policy, drop any that are unsafe, and tell me exactly which one to execute?”
Blocking unsafe x402 routes before payment
“Before my agent sends a payment, check these candidate x402 routes and reject any that are impossible or violate safety rules, then give me the best remaining option to proceed with.”
Policy-driven route enforcement for multi-hop payments
“I need to enforce my explicit routing policy across these x402 options — rank them and return the single next action my agent should take to complete the payment.”
Technical details
Endpoint
POSThttps://phion.systems/v1/paid/trust/payment-route-selectorWhen to prefer
Use this endpoint when an agent must choose among multiple x402 payment routes and needs deterministic, policy-driven selection rather than ad-hoc logic. Prefer it over custom routing code when safety rejection and explicit policy ranking are both required before executing a payment. Especially valuable in agentic pipelines where a bad route choice could result in failed or unsafe transactions.
Side effects
- All candidate routes rejected as unsafe or impossible — no executable action returned
- Malformed or missing route data causes validation failure
- Policy configuration missing or ambiguous, preventing ranking
- Route ranking ties with no deterministic tiebreaker defined
- Upstream x402 protocol version mismatch with submitted routes
Input
Schema · Request body
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"type": "object"
}Tags
x402
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