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Delx Seeded Weighted Partition
x402
Delx Seeded Weighted Partition is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Deterministically partitions a list of items into named buckets according to per-item weights and a seed, producing reproducible weighted assignments.
Price / call$0.001
Success—
StatusUnknown
How this service works
Seeded Weighted Partition: Seeded Weighted Partition assigns items to partitions using reproducible capacity weights from bounded caller-supplied values without an external provider. Call Seeded Weighted Partition 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 Weighted Partition as versioned deterministic JSON. Price: $0.001 USDC via…
Output
Returns a JSON object containing the named partitions and a list of item-to-partition assignments, alongside evidence fields confirming no data was retained and no external calls were made, plus an input SHA-256 for auditability.
Example use cases
A/B test traffic bucket assignment
“I need to split these 10 user IDs across two buckets called 'control' and 'treatment' with weights 30 and 70, using seed 'ab-test-2024-q1' so the assignments stay consistent every time I run it.”
Weighted task distribution across workers
“Distribute these 8 job IDs — ['job1','job2','job3','job4','job5','job6','job7','job8'] — across three workers named 'worker-a', 'worker-b', 'worker-c' with weights 1, 2, 3, using seed 'daily-run-7' so I get the same split each day.”
Reproducible content routing for agent pipeline
“Assign these 5 content pieces ['article1','article2','article3','article4','article5'] to two processing pipelines called 'fast-lane' and 'slow-lane' with weights 4 and 1, seeded with 'pipeline-seed-99' so the routing is deterministic.”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/seeded-weighted-partitionWhen to prefer
Choose this endpoint when you need deterministic, reproducible weighted partitioning of a list — i.e., the same seed always produces the same assignments. Prefer it over random shuffles or unweighted splits when proportional allocation and auditability matter. It is ideal for A/B testing, agent task routing, and data pipeline distribution where reproducibility and zero data retention are required.
Side effects
- Mismatched array lengths between items and weights returns a validation error
- Exceeding 256 items or 256 weights causes a rejection
- Empty partitions array results in an unassignable error
- Non-integer weight values fail schema validation
- Missing required fields (seed, items, weights, partitions) return a 400-level error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | string | Seed supplied to Seeded Weighted Partition; used only for this bounded calculation and processed in memory without retention. |
| items | array | Items supplied to Seeded Weighted Partition; used only for this bounded calculation and processed in memory without retention. |
| weights | array | Weights supplied to Seeded Weighted Partition; used only for this bounded calculation and processed in memory without retention. |
| partitions | array | Partitions supplied to Seeded Weighted Partition; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"partitions": [
"small",
"large"
],
"assignments": [
{
"item": "a",
"partition": "large"
},
{
"item": "b",
"partition": "large"
},
{
"item": "c",
"partition": "large"
},
{
"item": "d",
"partition": "small"
}
]
},
"schema": "delx/util-seeded-weighted-partition/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "bc355c9f5168958f8f9c83eb5b12ec826acd7f53dd1ff17fc75aa269842d4ca8",
"external_calls": 0
},
"operation": "seeded_decision:seeded_weighted_partition"
}
}Tags
x402
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