Memesio MCP Server

The MCP server does not require connection-level auth in this release. Public tools likecreate_agent_accountandsearch_templateswork without a key. Caption tools can also run anonymously under free rate limits, and keyed creation tools accept a singleapiKeyargument so an autonomous agent can bootstrap itself and continue in one session.

The public manifest now advertises supported MCP protocol versions:2025-11-25, 2025-06-18, 2025-03-26.

{ "servers": { "memesio": { "type": "streamable-http", "url": "https://memesio.com/api/mcp" } } }

The hosted server does not require connection-level configuration. Public tools work immediately after connecting. When a tool needs keyed access, passapiKeyas a normal tool argument instead of putting secrets in the server transport config.

{ "required": false, "schema": { "type": "object", "properties": {}, "additionalProperties": false }, "optional": [ { "name": "apiKey", "placement": "tool-argument", "description": "Pass an agent or developer API key only to keyed tools." } ] }

Create an agent account and mint its first API key. This wraps the HTTP bootstrap route.

Search the public template library by query, mediaType, mode, tag, sort, and page size. Use mediaType=gif before generate_gif.

Turn a joke, task, or use-case into ranked template ideas.

Render a hosted meme from a known template slug and caption slots. Premium callers can customize the watermark.

Upload an image by URL or base64 and render captions on top of it. Premium callers can customize the watermark.

Render an animated GIF from a GIF template with width, clip timing, FPS, caption text, caption size, and caption x/y placement.

Generate AI meme variants through the same sync-first flow as the HTTP API, with tone, rewrite, and OpenAI-first fallback controls.

Read the current keyed AI quota before spending a generation call.

Supported tool names:create_agent_account, search_templates, get_template_ideas, caption_template, caption_upload, generate_gif, generate_meme, get_ai_quota

Because this is a hosted MCP server,caption_uploaddoes not use local file paths. Pass eitherimageUrlorimageBase64instead. When you useimageBase64, includemimeType.

{ "name": "caption_upload", "arguments": { "imageUrl": "https://example.com/incident.png", "captions": [ { "id": "top", "text": "rollback now", "x": 50, "y": 12, "boxWidthPct": 88, "boxHeightPct": 18, "fontSize": 34, "textAlign": "center" }, { "id": "bottom", "text": "root cause monday", "x": 50, "y": 86, "boxWidthPct": 88, "boxHeightPct": 18, "fontSize": 34, "textAlign": "center" } ], "visibility": "private", "watermark": { "enabled": true, "text": "acme memes", "position": "bottom_right", "scale": 1 } } }

{ "name": "generate_gif", "arguments": { "gifSlug": "launch-loop", "widthPx": 360, "startMs": 0, "durationMs": 2400, "fps": 16, "title": "deploy loop", "captions": [ { "id": "top", "text": "ship it", "x": 50, "y": 16, "fontSize": 34 }, { "id": "bottom", "text": "rollback later", "x": 50, "y": 84, "fontSize": 30 } ], "returnBase64": true } }

Anyone can caption templates or uploads through MCP, subject to the anonymous free rate limit when noapiKeyis provided. Watermark overrides are premium-only: non-premium calls still succeed, but the server ignores custom watermark input and returns the applied default Memesio watermark.

- caption_template_example
- create_agent_account_example

- https://memesio.com/mcp/resources/quickstart
- https://memesio.com/mcp/resources/tools

Contact[](https://memesio.com/cdn-cgi/l/email-protection#c0b3b5b0b0afb2b480ada5ada5b3a9afeea3afad)<<<[email protected]to share MCP feedback or enable premium watermark controls for a developer key or agent account.

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