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Delx Seeded Balanced Groups
x402
Delx Seeded Balanced Groups is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Deterministically partitions a list of integers into balanced groups using a reproducible seed string
Price / call$0.001
Success—
StatusUnknown
How this service works
Seeded Balanced Groups: Seeded Balanced Groups distributes items reproducibly across near-equal groups from bounded caller-supplied values without an external provider. Call Seeded Balanced Groups when an agent needs a reproducible decision that another run can independently replay. Returns the deterministic selection plus seed provenance, population bounds, and the operation-specific outcome for Seeded Balanced Groups as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-…
Output
Returns a JSON object containing a 'groups' array of arrays, where each sub-array holds a balanced subset of the input integers. Also includes metadata: status ('pass'), schema version ('delx/util-seeded-balanced-groups/v1'), evidence fields confirming no data retention (retained: false), input SHA-256 hash for auditability, and external_calls count (0), plus an operation identifier.
Example use cases
Deterministic agent task sharding
“I have 12 job IDs [1,2,3,4,5,6,7,8,9,10,11,12] and 4 worker agents. Split them into 4 balanced groups using seed 'batch-run-2024' so each run assigns the same jobs to the same workers.”
Reproducible A/B test bucket assignment
“Partition user IDs [101,102,103,104,105,106] into 2 balanced groups using seed 'ab-test-v3' so I can assign them consistently to control and treatment every time.”
Balanced tournament bracket seeding
“I have 8 players numbered 1 through 8 and need to split them into 2 balanced groups for the first round. Use seed 'tournament-spring' so the brackets are the same if I regenerate them.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/seeded-balanced-groupsWhen to prefer
Use this endpoint when you need a deterministic, reproducible, balanced partitioning of a list of integers using a seed — ideal for agent workflows requiring consistent task assignment across runs. Prefer it over random shuffling when reproducibility matters (e.g., retrying a failed batch should re-assign the same items). It processes everything in-memory with no retention, making it safe for sensitive ID lists. Choose this over a generic random split when auditability (via SHA-256 evidence) is needed.
Side effects
- Invalid or missing group_count may cause a 400 error or undefined partitioning behavior
- Exceeding maxItems (256) on the items array may result in rejection
- Very large seed strings near the 8192-character limit may be truncated or cause unexpected hashing
- Non-integer values in the items array will fail schema validation
- group_count larger than the number of items results in some groups being empty
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | string | Seed supplied to Seeded Balanced Groups; used only for this bounded calculation and processed in memory without retention. |
| items | array | Items supplied to Seeded Balanced Groups; used only for this bounded calculation and processed in memory without retention. |
| group_count | integer | Group Count supplied to Seeded Balanced Groups; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"groups": [
[
3,
6,
5
],
[
2,
1
],
[
7,
4
]
]
},
"schema": "delx/util-seeded-balanced-groups/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "5e73677b9e39056c1e2a57b5393da0a22a4c5722d878e5d471fb8ea36275c80d",
"external_calls": 0
},
"operation": "seeded_decision:seeded_balanced_groups"
}
}Tags
x402
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