# agentshelf.syntexa.ch JSON-to-Markdown Converter

> agentshelf.syntexa.ch JSON-to-Markdown Converter is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Converts a JSON object or array to formatted Markdown, rendering arrays of objects as Markdown tables

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/json-to-md?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-json-to-markdown-converter-0d7facb5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zOjmAc5ifJy9Qc7mWp89-

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 agentshelf-syntexa-ch-json-to-markdown-converter-0d7facb5 -d '<json body>'
```

Example prompt: Convert this JSON array to markdown for me — it's a list of products with name, price, and category fields — render it as a proper markdown table.

## When to prefer this

Prefer this endpoint when you need a fast, deterministic, offline conversion of a JSON object or array to Markdown with no LLM involved — especially when rendering arrays of objects as Markdown tables. Use the free sandbox endpoint POST /v1/sandbox/json-to-md first if available; fall back to this paid endpoint when the sandbox is unavailable or rate-limited.

## Known failure modes

- Invalid or non-JSON input body returns an error response
- Payment of $0.001 USDC not provided or declined results in a 402 Payment Required response
- Empty JSON object or array may return minimal or empty markdown output
- Malformed request schema returns a 400 Bad Request

## How this service works

Call when an agent needs a JSON object or array converted to markdown (tables for array-of-objects). No network. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/json-to-md first.

## Output

A Markdown-formatted string. Arrays of objects are rendered as Markdown tables with column headers derived from object keys; plain objects are rendered as structured Markdown key-value content.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "json": {
   "anyOf": [
    {
     "type": "object",
     "additionalProperties": {}
    },
    {
     "type": "array",
     "items": {}
    }
   ],
   "examples": [
    {
     "name": "Ada",
     "role": "eng"
    }
   ],
   "description": "JSON object or array to render as markdown. An array of objects becomes a table."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-syntexa-ch-json-to-markdown-converter-0d7facb5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)