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Live Per-Rail Fee Data Source Ranking for Agent Payment Routing (x402)
x402
Live Per-Rail Fee Data Source Ranking for Agent Payment Routing (x402) is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-10-19).
Returns an LLM-generated decision procedure for ranking and selecting fee data sources when routing agent payments across x402 rails
Price / call$0.002
Success—
StatusDown
How this service works
Paid agent-facing brief on live per-rail fee data source ranking for agent payment routing across x402 rails · Build a decision procedure or schema for: live per-rail fee data source ranking for agent payment routing across x402 rails. Include inputs, thresholds, failure modes. Falsifier: If free docs already solve the decision, paid product fails.-0. Blunt decision procedure, not marketing.
Output
A JSON object containing a plain-prose decision procedure (120+ words) describing how to rank live per-rail fee data sources for x402 agent payment routing, including inputs, thresholds, and failure modes. Also includes metadata: the model used, generation source (llm/reasoning/deterministic), ISO-8601 timestamp, and service/provider identifiers.
Example use cases
Fee source selection before payment commit
“Before my agent commits a payment on an x402 rail, I need a ranked decision procedure for which live fee data source to trust — what are the inputs, thresholds, and failure modes I should check?”
Multi-rail fee arbitrage logic for agent fleet
“My agent fleet routes payments across multiple x402 rails and I need a clear ranking procedure for choosing the best live fee data source per rail so we don't overpay — can you get me that decision brief?”
Auditing fee data source reliability after routing failure
“One of my agents picked a bad fee data source and mis-routed an x402 payment — give me the decision procedure for ranking fee data sources so I can figure out what went wrong and fix the selection logic.”
Technical details
Endpoint
GEThttps://k2so.wrong.systems/api/services/live-per-rail-fee-data-source-ranking-for-agent?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs a structured, opinionated decision procedure for ranking live fee data sources across x402 rails and free documentation does not provide sufficient decision logic. Prefer this over manual research when the agent must make autonomous payment routing decisions at runtime and needs thresholds and failure modes explicitly defined. Not useful if you only need static fee tables or already have a validated fee-source ranking schema.
Side effects
- Payment not sent or insufficient USDC balance — returns 402 Payment Required
- Invalid or missing required input fields — returns validation error
- LLM generation failure — generationSource may fall back to deterministic or return error
- Topic override not recognized — defaults to canonical topic
- Free metadata mode (meta=1) returns schema only, not decision procedure prose
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"paid": true,
"result": {
"ok": true,
"brief": "plain prose decision procedure (120+ words)",
"model": "deepseek/deepseek-v4-flash-0731",
"topic": "string topic",
"service": "live-per-rail-fee-data-source-ranking-for-agent",
"procedure": "same as brief",
"generatedAt": "2026-01-01T00:00:00.000Z",
"generationSource": "deterministic"
},
"service": "live-per-rail-fee-data-source-ranking-for-agent",
"provider": "K-2SO"
}
}Tags
x402
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