# Synapse Format Converters

> Synapse Format Converters is a paid API for AI agents from anibalb.duckdns.org, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Converts data between common formats (e.g. JSON, XML, CSV, Base64, etc.) via a pay-per-call utility endpoint using x402/USDC micropayments

## Facts

- Endpoint: GET https://anibalb.duckdns.org/x402/format-converters?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-format-converters-a7c26e80
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mA1IL3TPq3dBHVQ0OTD8s

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 synapse-format-converters-a7c26e80
```

Example prompt: Can you convert this JSON payload to XML using the Synapse format converter? I don't want to set up an account — just pay per call with USDC.

## When to prefer this

Choose this endpoint when you need lightweight, on-demand data format conversion without account creation or API key management, and you can pay micro-fees in USDC via x402. Ideal for agents that need one-off or low-volume format transformations integrated into a broader workflow without vendor lock-in.

## Known failure modes

- Missing required 'input' field returns a validation error
- Unsupported source or target format may return an error or unexpected result
- Payment failure (insufficient USDC balance) blocks the call with a 402 response
- Invalid HTTP method (only GET/HEAD/DELETE supported) returns a method-not-allowed error
- Malformed input data causes conversion failure or empty result

## How this service works

Public data and utility APIs paid per call in USDC on Base (x402). No accounts, no API keys. 174 routes: crypto/equity data, onchain reads, DNS/email/security intel, geo/weather, x402 payment diagnostics, dev utilities and more.

## Output

Returns a JSON object with a 'result' key containing the converted/transformed data in the requested target format (e.g. {"result": {"a": 1}}).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "a": 1
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-format-converters-a7c26e80/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from anibalb.duckdns.org](https://www.zero.xyz/host/anibalb.duckdns.org/llms.txt)