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Delx Commerce — JSON Empty Prune
x402
Delx Commerce — JSON Empty Prune 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).
Removes keys with empty or null values from a JSON object and returns the pruned result with evidence of what was removed.
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 pruned result (object with empty/null keys removed), a list of the removed key names, a status of 'pass', and an evidence block containing whether the input was retained, the SHA-256 hash of the input, and the number of external calls made (always 0).
Example use cases
Sanitize API payload before sending
“I need to clean up this JSON payload before I send it to the partner API — strip out any keys that have null or empty values: {"order_id":"123","notes":"","discount":null,"amount":49.99}”
Compact noisy LLM output object
“The LLM returned a JSON object with a bunch of empty fields mixed in. Can you prune all the empty and null keys out of this so I only have the ones that actually have values? Object: {"title":"Report Q1","summary":"","tags":null,"author":"Bob","draft":false}”
Normalize scraped data before storage
“I scraped some structured data from a webpage and the resulting JSON has lots of empty strings and nulls. Please remove all the empty keys from this object before I store it: {"product":"Widget","sku":"W-001","description":"","weight":null,"price":12.5}”
Technical details
Endpoint
POSThttps://commerce.delx.ai/api/v1/x402/json-empty-prune?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call, no-signup utility to strip empty and null values from a JSON object in a verifiable, auditable way. It is ideal for agents that need to clean up LLM outputs, API responses, or scraped data on the fly without maintaining infrastructure. The built-in SHA-256 evidence and no-retention guarantee make it suitable for privacy-conscious pipelines. Prefer this over custom preprocessing code when you want deterministic, verifiable pruning with cryptographic proof of what was processed.
Side effects
- Input object exceeds 128 properties — rejected with a schema validation error
- Malformed JSON body — returns a parse error
- Network or payment processing failure — returns a 402 or 5xx error
- Object has no empty keys — returns the original object unchanged with an empty removed_keys list
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| object | object | Object supplied to JSON Empty Prune; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"object": {
"d": 1
},
"removed_keys": [
"a",
"b",
"c"
]
},
"schema": "delx/util-json-empty-prune/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "f9cf0bb18905a0dc7f01e28106ee0e0ef53cb457dc27e0691f35144835ca7c57",
"external_calls": 0
},
"operation": "data_batch:json_empty_prune"
}
}Tags
x402
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