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api_version_invalid

Deedglass-Version isn’t a date in YYYY-MM-DD form, isn’t a version this server knows, or was sent more than once.

HTTP 400 · invalid_request_error · not retryable

What happened

Section titled “What happened”

Deedglass-Version isn’t a date in YYYY-MM-DD form, isn’t a version this server knows, or was sent more than once. param is Deedglass-Version. See Versions.

What to do

Section titled “What to do”

Send Deedglass-Version: 2026-10-01 once, or leave the header out to use your org’s pinned version.

Example

Section titled “Example”
HTTP 400 · api_version_invalid
{
  "error": {
    "type": "invalid_request_error",
    "code": "api_version_invalid",
    "message": "Deedglass-Version isn't a known version. Use 2026-10-01, or leave it out to use your org's pinned version.",
    "param": "Deedglass-Version",
    "request_id": "req_01j9zr3m5k8q2w7x4t6v0b1c9d",
    "doc_url": "https://docs.deedglass.com/errors/api_version_invalid"
  }
}

The message is for a person and can get more exact over time: branch on type and code, never on the message.

In the SDKs

Section titled “In the SDKs”
SDK Raised as
TypeScript (@deedglass/sdk) InvalidRequestError with code === "api_version_invalid"
Python (deedglass) deedglass.InvalidRequestError with .code == "api_version_invalid"
Section titled “Related”