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Synapse Format Converters
x402
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
Price / call$0.002
Success—
StatusUnknown
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}}).
Example use cases
JSON to XML data migration
“I have a JSON blob I need converted to XML for a legacy system integration — can you run it through a format converter without needing me to sign up for anything?”
Base64 encode binary content
“Can you Base64-encode this raw string for me using a quick utility API? I just need the encoded output right away.”
CSV to JSON for API ingestion
“I've got a CSV snippet I need turned into JSON so I can feed it into another API — can you do that conversion for me on demand?”
Technical details
Endpoint
GEThttps://anibalb.duckdns.org/x402/format-converters?utm_source=zero.xyzWhen to prefer
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.
Side effects
- 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
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"a": 1
}
}
}Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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