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JSON Pointer Get
x402
JSON Pointer Get 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).
Resolves an RFC 6901 JSON Pointer expression against a caller-supplied JSON document and returns the value at the specified path.
Price / call$0.001
Success—
StatusUnknown
How this service works
JSON Pointer Get: JSON Pointer Get resolves a bounded RFC 6901-style JSON pointer from bounded caller-supplied values without an external provider. Call JSON Pointer Get before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Pointer Get as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, sta…
Output
Returns the value found at the specified RFC 6901 JSON pointer path within the document, along with normalized values, counts, and a versioned deterministic result contract. Response is structured JSON with the resolved value and metadata about the operation.
Example use cases
Extract nested field before downstream call
“I have this API response object and I need to pull out the value at '/order/items/0/sku' before I send it to the fulfillment service — can you resolve that pointer and give me the value?”
Validate pointer resolves in agent pipeline
“Before handing this config JSON to the deployment tool, check that the pointer '/config/database/host' actually resolves to something in the document I'm giving you.”
Drill into paginated API result
“Here's the raw JSON from a search response — can you use the pointer '/hits/2/metadata/author' to get me just the author field from the third result?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/json-pointer-getWhen to prefer
Use this endpoint when an AI agent needs to extract a specific value from a structured JSON document using a precise RFC 6901 pointer path, especially as a preflight step before passing structured data to a downstream tool with a strict contract. Prefer this over manual path traversal logic when the pointer is dynamic or caller-supplied and you need a deterministic, versioned result. Particularly useful in agentic pipelines where schema contracts matter.
Side effects
- Pointer path does not exist in the document — returns an error or null resolution
- Malformed pointer syntax (not RFC 6901 compliant) — returns validation error
- Document exceeds maxProperties limit of 128 — request rejected
- Pointer string exceeds 8192 character limit — request rejected
- Document is not a valid JSON object — schema validation failure
- Payment not included or insufficient — x402 payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| pointer | string | Pointer supplied to JSON Pointer Get; used only for this bounded calculation and processed in memory without retention. |
| document | object | Document supplied to JSON Pointer Get; used only for this bounded calculation and processed in memory without retention. |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"found": true,
"value": 20
},
"schema": "delx/util-json-pointer-get/v1",
"status": "pass",
"evidence": {
"retained": false,
"input_sha256": "a8554f4490fa0d37d839c66b35536a95b03da8fcb88043be9adfe44b8653d900",
"external_calls": 0
},
"operation": "data_batch:json_pointer_get"
}
}Tags
x402
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