Let your coding agent turn images into editable files.

1. Create an API key

Sign in with Google and open https://unraster.ai/developers/api-keys. Keep the key secret: it spends your account credits. Store it in an environment variable named UNRASTER_API_KEY.

export UNRASTER_API_KEY="your-api-key"

2. Connect the MCP server

Server URL: https://unraster.ai/mcp (Streamable HTTP, stateless). Authenticate every request with the header Authorization: Bearer $UNRASTER_API_KEY.

Claude Code

claude mcp add --transport http unraster https://unraster.ai/mcp \
  --header "Authorization: Bearer $UNRASTER_API_KEY"

Your shell fills in the key when you run the command, and Claude Code saves it in its configuration.

Cursor

Add this to ~/.cursor/mcp.json (or .cursor/mcp.json in a project). Cursor reads the key from your environment.

{
  "mcpServers": {
    "unraster": {
      "url": "https://unraster.ai/mcp",
      "headers": {
        "Authorization": "Bearer ${env:UNRASTER_API_KEY}"
      }
    }
  }
}

Codex

Add this to ~/.codex/config.toml. Codex sends the value of UNRASTER_API_KEY as the Bearer token.

[mcp_servers.unraster]
url = "https://unraster.ai/mcp"
bearer_token_env_var = "UNRASTER_API_KEY"

Other MCP clients

Use the same URL and Authorization header in any client that supports Streamable HTTP servers.

Skill package

Install the Claude Code plugin to get this MCP server plus a ready-made image-to-PowerPoint skill. It uses the same API key from UNRASTER_API_KEY.

claude plugin marketplace add zane-labs/agent-skills
claude plugin install unraster@zane-agent-skills

Tools

Credits

• A new API account’s first PowerPoint conversion is free: one per account and per Google sign-in, with outputs set to pptx only. If it fails, the free conversion stays available.
• SVG: 1 credit. PowerPoint: 2 credits. Both: 3 credits.
• Only delivered files are charged. A failed conversion is not charged.
• Quotes, progress checks and downloads are free.

See plans and credit packs

Limits

• PNG, JPEG and WebP only.
• Images fetched by URL: up to 25 MiB. Base64 images: up to 5 MB after decoding.
• Image URLs must use https and point to a public host. Private and internal addresses are refused.
• Download links are valid for 7 days, and anyone with the link can download the file. Do not share them publicly.

Example prompts

Convert https://example.com/slide.png into an editable PowerPoint and give me the link.

Check how many credits converting ./chart.png to SVG and PPTX would cost.

Turn this screenshot into an SVG and save it to assets/logo.svg.

For the last prompt, the agent converts the image and then downloads the file from the returned link.

FAQ