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Delx Commerce — JSON Array Project Keys
x402
Delx Commerce — JSON Array Project Keys 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).
Projects (selects/filters) a specified set of keys from each object in a JSON array, returning only those key-value pairs.
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: a 'result' containing the projected array (only the specified keys per object) and the list of keys used; a 'status' of 'pass'; an 'evidence' block with retained=false, the SHA-256 of the input for verifiability, and external_calls=0; and an 'operation' identifier 'data_batch:json_array_project_keys'.
Example use cases
Slim API response before storage
“I got back a list of 80 product records from an external API but they have tons of extra fields I don't need — can you project each one down to just 'sku', 'price', and 'stock_count'?”
Prepare display data for UI
“I have an array of 50 employee objects with sensitive fields — strip everything except 'name', 'department', and 'title' before I pass them to the frontend.”
Normalize heterogeneous records
“These 30 JSON objects all have different shapes — can you project them so each one only contains 'event_id', 'timestamp', and 'type', filling in what's present?”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/json-array-project-keys?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call, no-signup utility to project specific keys from a JSON array in-memory with cryptographic delivery proof (SHA-256 evidence). Ideal for agents that need deterministic field selection without spinning up custom ETL infrastructure, especially when operating in USDC/x402 payment environments on Base or Solana.
Side effects
- Exceeding 256 items in the input array returns a validation error
- Key strings longer than 8192 characters are rejected
- More than 128 properties per object may be truncated or rejected
- Malformed JSON input causes a 400-level error
- Payment failure via x402 protocol prevents the call from executing
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| keys | array | Keys supplied to JSON Array Project Keys; used only for this bounded calculation and processed in memory without retention. |
| items | array | Items supplied to JSON Array Project Keys; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"keys": [
"id",
"name"
],
"items": [
{
"id": 1,
"name": "A"
}
]
},
"schema": "delx/util-json-array-project-keys/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "cf97ec299457d0d7e866c72dd379cccee1d633725ce65b3c091d637611c798a6",
"external_calls": 0
},
"operation": "data_batch:json_array_project_keys"
}
}Tags
x402
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