> For the complete documentation index, see [llms.txt](https://docs.millpont.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.millpont.com/meti-api-documents/error-handling.md). # Error Handling ## **Error Handling** Common errors include: #### **401 – Unauthorized** * Missing or invalid token * Expired token * Token not intended for this API (`audience` mismatch) #### **403 – Forbidden** * Token does not include required scopes * Client attempting to access data in another account #### **404 – Not Found** * Source ID does not exist * Or does not belong to your account #### **422 – Validation Error** * Bad GeoJSON * Missing fields * Invalid date formats *** ## **Support** For API access or help: * **Website:** METI API Support * **Email:** --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.millpont.com/meti-api-documents/error-handling.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.