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Demarker MCP server

by demarker.io·io.demarker/mcp·v0.1.2
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Identify what an AI image carries (marks, metadata, watermarks), then clean it.

B80/100grade B
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Safety scan
B80/100

full report

Adoption
New

0 stars

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If you have run it, two minutes of your experience saves the next person an afternoon.

Demarker tools (5)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • demarker_clean

    Spends credits. Identifies the image, checks the price against maxCredits (nothing is charged above it), runs the GPU clean, and saves the result next to the input as <name>.clean.<ext> (never overwrites). Needs DEMARKER_API_KEY. The user must confirm the rights statement: the client asks them when it supports it; otherwise pass rightsAttested true only after the user explicitly agreed to the stat

  • demarker_get_balance

    Read the account's credit balance. Needs DEMARKER_API_KEY.

  • demarker_get_job

    Status and report for a job from demarker_identify or demarker_clean. Needs DEMARKER_API_KEY.

  • demarker_get_pricing

    Credits per clean and the credit packs. Public, no key needed.

  • demarker_identify

    Free. Upload a local image and report what it carries: visible marks, AI metadata, inferred hidden watermarks, and the credit price of a clean. Works without an API key (keyless scan, rate-limited). Spends nothing.

Public scan report

scanner v0.1.10 · 2026-10-13 · same rubric, same numbers if you re-run it

no findings
  • Code scan5 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 0 days ago15/15
  • Maintainer identitynamespace and repository owner differ; website matches verified namespace6/10
Overall 80/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Demarker compares

Against every graded Media MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
80/100
higher than 62% of 1,337 Media servers
Tools
5
the typical Media server has 7
Tools that change things
0%
typical: 4%. Fewer write tools means less an agent can break

What its tools let an agent do: 5 read

Install Demarker in Claude Code, Cursor or VS Code

Runs npx -y @demarker/mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add mcp -- npx -y @demarker/mcp
Add to Cursor

What the publisher says

From the Demarker repository's README, as published. We do not edit it. Read it on GitHub

Demarker agent tools

Open-source client, CLI, MCP server and agent skill for Demarker: see and remove what an AI generated image have hidden in them (visible marks, AI metadata, inferred hidden watermarks such as SynthID), then remove them!

Scanning is free and needs no account. Cleaning needs an API key and credits, and the person using it confirms a rights statement each time.

Quick start

npx demarker identify image.png                          # free, no key
export DEMARKER_API_KEY=sk_live_...                      # https://demarker.io/app/settings/api
npx demarker clean image.png --max-credits 1 --attest-rights

MCP, Claude Code: claude mcp add demarker -- npx -y @demarker/mcp. One-click Cursor and VS Code installs: https://demarker.io/developers

Safety by design

  • Spending is capped: --max-credits is required, and the MCP server also enforces a per-call ceiling (default 2 credits).
  • The rights attestation is never defaulted. The CLI asks, or needs an explicit --attest-rights; the MCP server asks the user through the client where supported.
  • Results never overwrite an existing file.

Development

pnpm install && pnpm build && pnpm test

This repository is published from Demarker's main codebase; issues and pull requests are welcome here. API reference: https://demarker.io/api/v1/openapi

MIT licensed.

Nothing above is checked by us. What we check is on the safety report.

Demarker: common questions

Is Demarker MCP server safe?
Mostly: it is graded B (80/100). Read the Demarker safety report
How do I install Demarker?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Demarker need an API key?
Yes. The registry entry asks for DEMARKER_API_KEY.
Is Demarker maintained?
The last commit was 22 days ago (2026-10-13). The latest release is v0.1.2.
What can I use instead of Demarker?
Servers from other publishers that do the same job: Remove AI Watermarks MCP server, anymd MCP server and Transloadit Media Processing MCP server.
How does Demarker compare with other Media MCP servers?
safety score 80/100 (higher than 62% of 1,337 Media servers); tools 5 (the typical Media server has 7); tools that change things 0% (typical: 4%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Demarker

Same job from other publishers: the closest match first, then the best rated.

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  • SuperCMO
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    More from nirholas →
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