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Delx Commerce Seeded Tie-Break
x402
Delx Commerce Seeded Tie-Break is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).
Deterministically selects one candidate from a list using a seed string, producing a verifiable, reproducible tie-breaking decision with no data retention.
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.
Output
Returns a JSON object with the selected candidate string and its index in the input array, plus an evidence block containing the input SHA-256 hash, a flag confirming no data was retained, and an external-calls count of zero — enabling full auditability of the decision.
Example use cases
Agent fleet task assignment
“We have three agents — 'worker-1', 'worker-2', 'worker-3' — all equally eligible for a job. Use the seed 'job-batch-42' to pick one deterministically so we get the same answer every time we check.”
Tournament bracket tie resolution
“Two players tied in our leaderboard: 'alice' and 'bob'. Use the seed 'semifinal-round-2' to pick the one who advances — I need the result to be reproducible and auditable.”
Randomized A/B variant selection
“Pick one of these three content variants — 'variant-control', 'variant-blue', 'variant-green' — using seed 'user-session-8821' so the same user always gets the same variant and I can verify the selection later.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/seeded-tie-break?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a deterministic, reproducible, and auditable tie-breaking decision with a verifiable seed — particularly in multi-agent systems where the same seed must always yield the same winner, or when auditability and no-retention guarantees are required. Prefer it over pure random selection when you need reproducibility, and over self-implemented hash logic when you need an external, pay-per-result verifiable record.
Side effects
- Missing or empty candidates array returns a validation error
- Seed string exceeding 8192 characters is rejected
- Candidates array exceeding 256 items is rejected
- Malformed JSON body returns a 400-level error
- Payment not included or insufficient USDC results in a 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | string | Seed supplied to Seeded Tie Break; used only for this bounded calculation and processed in memory without retention. |
| candidates | array | Candidates supplied to Seeded Tie Break; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"index": 1,
"selected": "agent-b"
},
"schema": "delx/util-seeded-tie-break/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "2af40d10ca5c00077ce59778ecab5e4435550298c2af584fa9395592d9a9208c",
"external_calls": 0
},
"operation": "seeded_decision:seeded_tie_break"
}
}Tags
x402
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