# Research JSON Path Lookup

> Research JSON Path Lookup is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Reads a value from a JSON document at a specified dot-separated path, optimized for research workflows.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/json-path-research?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/research-json-path-lookup-7d166b62
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JDMZFK_ETnekeGw0Qvb_l

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability research-json-path-lookup-7d166b62 -d '<json body>'
```

Example prompt: I have a JSON string '{"user":{"name":"Ada","role":"admin"}}' — can you extract the value at the path 'user.role' for me?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call way to extract a single field from a JSON document using dot notation, especially within research or data-analysis workflows. It is ideal for agents processing structured API responses, configuration blobs, or document metadata where only one specific nested value is needed.

## Known failure modes

- Path not found in JSON — returns null or error if the key does not exist at the specified path
- Invalid JSON string — returns parse error if the input is not valid JSON
- Malformed path — dot-separated path with empty segments or invalid characters may not resolve correctly
- Type mismatch — attempting to traverse into a non-object value mid-path will fail

## How this service works

Research JSON path lookup: Read a dot-separated path from a JSON document. Tailored for research workflows.

## Output

The value found at the specified dot-separated path within the provided JSON document, returned as the extracted data (string, number, object, or array depending on what is at that path).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "json": {
   "type": "string",
   "default": "{\"user\":{\"name\":\"Ada\"}}"
  },
  "path": {
   "type": "string",
   "default": "user.name"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/research-json-path-lookup-7d166b62/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)