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POST
/
generate
/
image
Generate Image
curl --request POST \
  --url https://api.supapost.so/generate/image \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "<string>",
  "model": "<string>",
  "aspect_ratio": "<string>",
  "reference_image_url": "<string>",
  "reference_strength": 123,
  "influencerId": "<string>"
}
'
{
  "job_id": "0b1e9a5f-1234-4d8c-b2a0-...",
  "status": "pending"
}
Generates an image from a text prompt. This endpoint is always async — it returns a job_id immediately and the actual generation happens on a background queue. Poll GET /jobs/:id until status is completed, then read result.url. The completed image is automatically uploaded to R2 storage and saved to the team’s asset library.

​
Authentication

​
Authorization
string
Bearer token. Bearer <api-key-or-jwt>.

​
Body

​
prompt
string
required
Text description of the image to generate.
​
model
string
default:"fal:flux-schnell"
Model identifier in provider:model format. Use GET /models to list options.
​
aspect_ratio
string
Aspect ratio for the generated image, e.g. "9:16", "1:1", "16:9".
​
reference_image_url
string
URL of a reference image for image-to-image generation.
​
reference_strength
number
How closely to follow the reference image (0-1). Only used when reference_image_url is provided.
​
influencerId
string
If provided, the completed image is automatically appended to this influencer’s image array. Survives the user navigating away mid-generation.

​
Polling pattern

# 1. Submit
curl -X POST https://api.supapost.so/generate/image \
  -H "Authorization: Bearer $KEY" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "sunset over tokyo", "aspect_ratio": "9:16"}'
# → 202 { "job_id": "0b1e...", "status": "pending" }

# 2. Poll every 1-2 seconds
curl https://api.supapost.so/jobs/0b1e... \
  -H "Authorization: Bearer $KEY"
# → { "status": "processing", ... }
# → { "status": "completed", "result": { "url": "https://cdn.supapost.so/...jpg" } }

{
  "job_id": "0b1e9a5f-1234-4d8c-b2a0-...",
  "status": "pending"
}