Errors

Assembly follows conventional HTTP response codes to indicate the success or failure of an API request and uses the following codes:

Error Code	Meaning
200	OK — Everything worked as expected.
400	Bad Request — The request was unacceptable, typically due to an invalid or missing parameter.
401	Unauthorized — No valid API key provided.
404	Not Found — The requested resource doesn’t exist.
429	Too Many Requests — Too many requests hit the API too quickly.
500	Internal Server Error — There was an error with Assembly’s servers. Try again later or contact Assembly support.

Error response

Some errors that could be handled programmatically (e.g., a parameter is invalid) include an error response object that explains the error reported. code string Specialized identifier for this type of error in our API. Mostly returned with 4xx errors and briefly explains the error reported. message string Human readable error message describing the issue. data string or object Additional information provided about an error for 5xx response status.

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Error response

​Error response

Error response