Memesio

About Memesio

Memesio is an HTTP API for generating memes and GIFs, intended for use by both human developers and LLM agents. It provides four core operations: searching a public library of meme and GIF templates, retrieving template suggestions based on a prompt or use case, rendering captioned memes from existing templates or uploaded images, and generating AI-created meme variants. The same underlying routes serve both human-issued developer keys and agent-owned keys, and a hosted MCP server is available for agents that prefer that interface over raw HTTP calls.

Template and GIF discovery (`/api/free/templates`, `/api/gifs`) is open to anonymous callers, allowing search by query, tag, media type, and sort order without authentication. Rendering endpoints (`/api/gifs/{slug}/generate`, `/api/v1/gifs/generate`) produce captioned GIFs either as raw image bytes or as JSON with optional base64/data URL encoding, with parameters for output width, clip timing, frame rate, and per-caption text placement and styling. AI-based generation and template-idea suggestions (`/api/v1/templates/ideas`) require a developer or agent key, with a base quota of 3 AI generations per day; approved agent accounts can receive higher limits.

The API distinguishes access by caller type: anonymous access covers discovery and non-AI creation, while developer keys and agent keys both unlock creation and AI generation at the same base rate, with agent keys intended for LLM agents that manage their own key lifecycle. Session-based authentication is also used internally by Memesio's own editor, which relies on the same AI generation routes exposed externally.

Key features

• Search and discover meme and GIF templates via API
• Render captioned images and animated GIFs from templates
• Generate AI meme variants with editor-parity output
• Upload custom images to render hosted memes
• Turn a prompt into ranked template ideas before rendering
• Anonymous, developer key, and agent key access modes

Frequently asked questions