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402utils JSONPath / JSON Pointer Extractor
x402
402utils JSONPath / JSON Pointer Extractor is a paid API for AI agents from 402utils.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Extracts specific values from a JSON document using a JSONPath expression or RFC 6901 JSON Pointer, returning only the matched values and count without the full document.
Price / call$0.002
Success—
StatusUnknown
How this service works
Extract values from a JSON document with a JSONPath expression or an RFC 6901 JSON Pointer, without returning the whole document. Send {data, path}; get {matches, count}. Path starting with $ = JSONPath ($.items[*].price, $..author, [0], [1:5], [*]); starting with / = JSON Pointer (/items/0/price). No-eval tree walk with bounded traversal; filter expressions [?(…)] are not supported by design.
Output
Returns a JSON object with a 'matches' array containing all values that matched the given JSONPath or JSON Pointer path, plus a 'count' integer indicating how many matches were found.
Example use cases
Example prompt
“From this JSON document, pull out all the prices using the JSONPath expression $.items[*].price — just give me the matched values and how many there are, not the whole document.”
Technical details
Endpoint
POSThttps://402utils.com/v1/jsonpathWhen to prefer
Use this endpoint when you need to extract one or more specific values from a JSON document without transmitting or parsing the whole structure — ideal when working with large API responses, when you need array slices, or when you want a quick field lookup via JSON Pointer. Prefer this over full document retrieval when bandwidth or processing cost matters. Note that filter expressions [?(…)] are not supported; choose a different tool if you need predicate-based filtering.
Side effects
- Invalid JSONPath syntax returns an error (filter expressions like [?(…)] are explicitly unsupported by design)
- Malformed JSON document in 'data' field causes a parse error
- JSON Pointer path that references a nonexistent key returns an empty matches array
- Path string that doesn't start with $ (JSONPath) or / (JSON Pointer) may be rejected or misinterpreted
- Deeply nested or extremely large documents may hit traversal bounds
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | — | The JSON document to query (any type). |
| path | string | A JSONPath ($.a.b[*]) or RFC 6901 JSON Pointer (/a/b/0). |
Tags
x402
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