Gamma API

What it does

The Gamma API is a RESTful interface that mirrors the AI generation in Gamma's web app. You send a text prompt, anything from one line to roughly 100,000 tokens of source content, plus options such as format, number of cards, themes, image sources and language. It returns a generated presentation, document, social post or website, optionally exported to PDF or PPTX. Gamma also offers a hosted MCP server so AI agents can create, read, edit and export content.

Developers use it to build presentation generation into their own apps, run bulk jobs such as hundreds of personalized decks from a CSV or database, or script custom pipelines with their own error handling and retries. A template workflow lets a human approve a branded template and code then generates on-brand variants from it. Authentication is by API key for scripts and automation tools, or OAuth 2.0 for apps acting on behalf of users.

It suits developers, automation builders and teams wanting programmatic slide or document creation. You need a Gamma account and an API key from settings; plan eligibility is described inconsistently in Gamma's own pages, and usage is limited by credits and plan limits. It is an API, not an end-user app. Pricing for API usage beyond plan credits is not clear from the available pages.

What it can do

• Generate presentations, documents, social posts and websites from text prompts
• Control format, card count, themes, image sources and 60+ languages
• Export generated content to PDF or PPTX
• Generate on-brand variants from an approved template
• Read, search, edit and export existing gammas and fetch analytics
• Organize output into folders and share by email

Works with

• Zapier
• Make
• n8n
• Profound

Example workflows

Bulk personalized decks

Input: a CSV or database of customer records and a prompt or approved template. Steps: loop over rows, POST each to the generation endpoint with format and export options, then collect results. Output: one generated presentation per row, exportable as PDF or PPTX.

Agent-driven branded content

Input: a connected MCP client and an approved template. Steps: the agent generates from the template, inspects the result, edits it, then requests an export. Output: an on-brand document or deck in the chosen format.

Before you choose

• Usage draws on AI credits and plan limits; errors like insufficient credits (403) and concurrency limits (429) can occur
• API key eligibility is described differently across Gamma pages, so confirm on your plan before building
• Custom MCP clients must register redirect URIs before connecting

Listed under

• Creative
• Presentations

Get started

Generate a key in Gamma settings, or use OAuth

1. Create or sign in to a Gamma account and check plan eligibility and credits
2. Copy an API key from Settings > API Keys, or register an OAuth client
3. Send a POST to /v1.0/agent/generations with the X-API-KEY header and a prompt

The pricing page lists API access under Pro, with Ultra including Pro features. Dollar prices and credit costs were not confirmed. Developer docs say keys are available on all plans including Free, limited by credits; the integration page says Pro and above.

Source: gamma.app/pricing, checked 29 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 29 Oct 2026. Each source supports part of the overview; availability and prices can change.

• Plans and pricing | Gamma ↗gamma.app
• ↗developers.gamma.app
• Gamma API Connector | Create presentations from Gamma API | Gamma.app ↗gamma.app

Company website

gamma.app: product, pricing and policy pages

Web archive

When the site first appeared

YC directory mirror

Batch and company name

Social accounts

Accounts the company links, and its posts on X

Human review

Checked by a person

knowledge_base

Last checked 29 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.