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Delx Commerce Seeded Coin Flip
x402
Delx Commerce Seeded Coin Flip 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).
Performs a deterministic, seeded coin flip simulation for a given number of flips, returning heads/tails results with verifiable evidence and 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 containing: an array of individual flip outcomes (e.g. ['heads','tails',...]), total heads count, total tails count, the operation schema identifier, a pass/fail status, and an evidence block with a SHA256 hash of the input, confirmation of no data retention, and zero external calls made — enabling full auditability of the result.
Example use cases
Reproducible agent decision tiebreaker
“I need to break a tie between two options in my workflow — flip a coin 1 time using the seed 'tiebreak-run7' so I can verify the outcome was fair.”
Seeded randomness for game simulation
“Simulate 20 coin flips using the seed 'gamenight2025' and give me the full sequence of heads and tails plus the totals.”
Auditable randomness for contest winner
“Pick randomly between two contest entrants by flipping a coin once with the seed 'contest-july4' — I need proof the result wasn't tampered with.”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/seeded-coin-flip?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, reproducible coin flip results tied to a specific seed — especially when auditability and verifiability matter (e.g. agent decisions, contests, games). It is ideal for scenarios where you want proof that the result was computed fairly with no external calls and no data retained. Prefer it over true-random endpoints when reproducibility from the same seed is required, and over general LLM-generated randomness when you need a cryptographic evidence trail.
Side effects
- Seed string exceeds 8192 character limit — request rejected
- Flips value is not an integer or is negative — malformed request error
- Payment in USDC not provided or insufficient — 402 Payment Required response
- Network or blockchain payment verification failure — transaction not confirmed
- Malformed JSON body — 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | string | Seed supplied to Seeded Coin Flip; used only for this bounded calculation and processed in memory without retention. |
| flips | integer | Flips supplied to Seeded Coin Flip; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"flips": [
"heads",
"heads",
"heads",
"heads",
"tails",
"tails",
"tails",
"heads"
],
"heads": 5,
"tails": 3
},
"schema": "delx/util-seeded-coin-flip/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "e2c71a78a4e46fc961d346ebdb850d06889aaf4b959c10e3a8ad8cdb0a10a036",
"external_calls": 0
},
"operation": "seeded_decision:seeded_coin_flip"
}
}Tags
x402
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