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Error codes

The MCP server returns standard JSON-RPC 2.0 errors. The most common codes:

-32001Auth / quota

Meaning: Missing, invalid or rate-limited API key, or you are over your credit quota.

Fix: Check your flt_ key and remaining credits with account_status; upgrade your plan if over quota.

-32602Invalid params

Meaning: A required parameter is missing or has the wrong type — e.g. no file_url/file_base64, or no target_format.

Fix: Provide a file input and all required fields shown on the tool page.

-32010Unsupported format

Meaning: The requested source/target format combination is not supported.

Fix: Call list_supported_formats to pick a valid target_format.

-32000Upstream error

Meaning: The conversion engine returned an error (corrupt file, tool failure).

Fix: Verify the input file is valid and retry; check the error detail in the response data.

-32601Method / tool not found

Meaning: The tool name does not exist in the registry.

Fix: Call tools/list to see the current tool names.