gamma-2

// Create presentations, documents, social posts, and websites using Gamma's AI API. Use when asked to create slides, presentations, decks, documents, or web content via Gamma.

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stars:370

forks:70

updated:February 19, 2026

SKILL.mdreadonly

SKILL.md Frontmatter

namegamma-2

descriptionCreate presentations, documents, social posts, and websites using Gamma's AI API. Use when asked to create slides, presentations, decks, documents, or web content via Gamma.

Gamma API Skill

Create presentations and documents programmatically via Gamma's API.

Setup

Get API key from https://developers.gamma.app
Store in environment: export GAMMA_API_KEY=sk-gamma-xxx Or add to TOOLS.md: Gamma API Key: sk-gamma-xxx

Authentication

Base URL: https://public-api.gamma.app/v1.0
Header: X-API-KEY: <your-api-key>

Generate Content

curl -X POST https://public-api.gamma.app/v1.0/generations \
  -H "Content-Type: application/json" \
  -H "X-API-KEY: $GAMMA_API_KEY" \
  -d '{
    "inputText": "Your content here",
    "textMode": "generate|condense|preserve",
    "format": "presentation|document|social|webpage"
  }'

Response: {"generationId": "xxx"}

Check Status

curl https://public-api.gamma.app/v1.0/generations/<generationId> \
  -H "X-API-KEY: $GAMMA_API_KEY"

Response (completed): {"status": "completed", "gammaUrl": "https://gamma.app/docs/xxx", "credits": {...}}

Poll every 10-20s until status: "completed".

Key Parameters

Parameter	Values	Notes
`textMode`	`generate`, `condense`, `preserve`	generate=expand, condense=summarize, preserve=keep exact
`format`	`presentation`, `document`, `social`, `webpage`	Output type
`numCards`	1-60 (Pro), 1-75 (Ultra)	Number of slides/cards
`cardSplit`	`auto`, `inputTextBreaks`	Use `\n---\n` in inputText for manual breaks
`exportAs`	`pdf`, `pptx`	Optional export format

Optional Parameters

{
  "additionalInstructions": "Make titles catchy",
  "imageOptions": {
    "source": "aiGenerated|unsplash|giphy|webAllImages|noImages",
    "model": "imagen-4-pro|flux-1-pro",
    "style": "photorealistic, modern"
  },
  "textOptions": {
    "amount": "brief|medium|detailed|extensive",
    "tone": "professional, inspiring",
    "audience": "tech professionals",
    "language": "en"
  },
  "cardOptions": {
    "dimensions": "fluid|16x9|4x3|1x1|4x5|9x16"
  }
}

Note: textOptions.tone and textOptions.audience are ignored when textMode is preserve.

Other Endpoints

GET /themes — List available themes (use themeId in generation)
GET /folders — List folders (use folderIds in generation)

Workflow

Check for API key in environment ($GAMMA_API_KEY) or TOOLS.md
Build inputText with content (can include image URLs inline)
POST to /generations → get generationId
Poll /generations/{id} until status: "completed"
Return gammaUrl to user