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SignalDesk AI – Pick Keys
x402
SignalDesk AI – Pick Keys is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Extracts a specified subset of keys from a JSON object, returning only the requested key-value pairs
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
A JSON object containing only the key-value pairs from the input object whose keys were listed in the requested keys array. Keys not present in the input object are omitted from the result.
Example use cases
Strip PII from API response
“I have this user record JSON and I only want to keep the fields 'id', 'username', and 'createdAt' — can you pull out just those three keys and drop everything else?”
Extract billing fields from invoice
“Here's a large invoice JSON object. I only need the keys 'invoiceNumber', 'amount', and 'dueDate' — can you pick just those out for me?”
Select config fields for deployment
“From this full app config JSON, I only want to forward the keys 'apiUrl', 'timeout', and 'retryCount' to the deployment script — please extract only those fields.”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/json/pick-keys?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a simple, cheap, programmatic way to project a known set of keys out of a JSON object without writing custom code. Ideal for agent pipelines that receive large JSON payloads and need to pass only specific fields downstream. Prefer this over general-purpose code execution tools when you just need key selection and want a fast, bounded, pay-per-use micro-operation.
Side effects
- Requested keys not present in the input object — those keys are silently omitted from the output
- Input 'data' is not a valid JSON object — may return an error or empty result
- Keys array exceeds 100 items (maxItems limit) — request rejected
- Key strings exceed 128 characters (maxLength limit) — request rejected
- Malformed request body — HTTP error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | — | JSON object. |
| keys | array | Object key names. |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"a": 1
}
}
}Tags
x402
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