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AgentShelf JSONPath Query Evaluator
x402
AgentShelf JSONPath Query Evaluator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-01).
Evaluates a JSONPath expression against a provided JSON value and returns the matching results, with no external network calls.
Price / call$0.002
Success—
StatusUnknown
How this service works
Call when an agent needs a JSONPath query evaluated over JSON. No network. Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/json-path first.
Output
Returns the result of the JSONPath expression evaluated against the provided JSON, typically an array of matching values or nodes found at the specified path.
Example use cases
Extract nested API response fields
“I have this API response JSON and I want to pull out all the `email` fields from the `users` array — can you run the JSONPath `$.users[*].email` against it for me?”
Filter array by condition
“Here's a JSON list of products. Can you use the JSONPath `$.products[?(@.inStock == true)].name` to give me just the names of in-stock items?”
Retrieve deeply nested configuration value
“I've got a big config JSON and I need the value at `$.environments.production.database.host` — can you evaluate that JSONPath against it?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/json-path?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs deterministic, server-side JSONPath query evaluation over a JSON document without making additional network calls or relying on LLM-based extraction. Prefer this over regex or LLM parsing when the JSON structure is known and a precise JSONPath expression can be written. Check the free sandbox endpoint POST /v1/sandbox/json-path first before paying $0.002 USDC.
Side effects
- Invalid JSONPath syntax returns an error
- Malformed or non-parseable JSON input returns a parse error
- Path that matches nothing returns an empty array
- Path string exceeding 500 characters is rejected
- Missing required fields (json or path) returns a validation error
- Payment of exactly $0.002 USDC required; incorrect payment amount causes rejection
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| json | — | JSON document to query. |
| path | string | JSONPath expression such as $.user.name. |
Tags
x402
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