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OpenVerbs Format Converter
x402
OpenVerbs Format Converter is a paid API for AI agents from format.openverbs.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).
Converts structured documents between 14 formats (JSON, YAML, XML, CSV, TOML, and more) using JSON as an intermediate hub
Price / call$0.004
Success—
StatusUnknown
How this service works
Transcode a document between json, json5, jsonc, yaml, xml, csv, tsv, toml, ndjson, ini, env, properties, plist and querystring. Any source converts to any target through a JSON hub. Malformed input or a target that cannot represent the structure is rejected before payment.
Output
A JSON response containing the converted document as a string in the requested target format. The output reflects any specified options like pretty-printing, indentation width, CSV header treatment, or custom XML root element name. Malformed input or structurally incompatible source-to-target combinations are rejected before any payment is charged.
Example use cases
Config file format migration
“I have this JSON config file and need it as TOML so I can use it with a Rust project — here's the content: '{"database":{"host":"localhost","port":5432},"debug":false}'. Can you convert it to TOML for me?”
CSV data to structured JSON
“Turn this TSV data into JSON for me — the first row is the header, and the content is: 'name\tage\tcity\nAlice\t30\tNew York\nBob\t25\tBoston'”
API response reformatting for legacy system
“I need to convert this JSON payload to XML so a legacy system can consume it — here's the JSON: '{"order":{"id":"123","items":["widget","gadget"],"total":49.99}}', wrap it in a root element called 'payload' and use 2-space indentation.”
Technical details
Endpoint
POSThttps://format.openverbs.com/v1/convertWhen to prefer
Choose this endpoint when you need reliable, bidirectional conversion between any of 14 popular structured data formats in a single call, without standing up your own parsing pipeline. It is especially useful for agent workflows that receive data in one format (e.g. YAML from a config file) and need it in another (e.g. JSON for downstream API consumption). The pay-per-call x402 micropayment model suits sporadic or low-volume conversion tasks where running a dedicated service is overkill. Prefer this over DIY parsing when format correctness and rejection of malformed input before charging are important.
Side effects
- Malformed or unparseable source document rejected with error before payment
- Source-to-target structural mismatch (e.g. nested object to CSV) rejected with error
- Unsupported format enum value rejected by schema validation
- Document exceeds 1,000,000 character limit
- Missing required fields (from, to, data) cause validation error
- XML output attempted on data with non-string keys incompatible with XML element names
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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