# Generate an image with the PostEverywhere API

**Source:** https://posteverywhere.ai/docs/api/generate-image

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# Generate an image with the PostEverywhere API

Generates one image via FAL AI, stores it in the media library and
returns a ready `media_id` for `createPost`. Credit cost depends on
the model; credits are reserved atomically and refunded on failure.
Free-trial organizations without a paid subscription get
`402 upgrade_required`. Prompts are safety-filtered
(`400 prompt_rejected`). Additional AI burst limits apply on top of
the API-key limit. Error codes: `validation_error`, `prompt_rejected`,
`upgrade_required`, `insufficient_credits`, `rate_limit_exceeded`,
`generation_failed`, `internal_error`.

Guide: [AI caption guide](https://posteverywhere.ai/docs/generate-caption)

Copy MarkdownCopy for LLMThis endpoint accepts a JSON request body. See the [ai guide](https://posteverywhere.ai/docs/generate-caption) for a worked example.

## Responses

- 201Image generated and stored
- 400
- 401
- 402
- 403
- 429
- 500

## More in AI

- [Generate a caption](https://posteverywhere.ai/docs/api/generate-caption)
[← Generate a caption](https://posteverywhere.ai/docs/api/generate-caption)[← All endpoints](https://posteverywhere.ai/docs/api/reference)