Demarker
NPM · @DEMARKER/MCP
Identify what an AI image carries (marks, metadata, watermarks), then clean it.
Available components
Last scanned (20 hours ago)
Scores higher than 43% of npm servers
Category Design and Media
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 31 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency45
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 10 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability71
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 486 tokens (~97/item across 5 items; 5 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management30
- Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 5 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 6 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 22 Oct 26 +4
- Stability: unverified → 0.27 ▲ functional
- 14 Oct 26 +31
- Injection markers: unverified → pass ▲ security
- First check of Judged manipulation: pass security
- Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). security
- Tool coverage: unverified → 100 ▲ functional
- MCP protocol: unverified → pass ▲ functional
- First check of Schema quality: fail functional
- First check of Destructive annotations: pass functional
- First check of Schema quality: pass functional
- First check of Schema quality: good functional
- First check of Tool coverage: 100 functional
- 13 Oct 26 38
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 23 Oct 2026 · Analysed npm/@demarker/mcp@0.1.2
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 31 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
demarker_clean Clean an image (spends credits) ~227
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 statement.
| Name | Type | Req | Description |
|---|---|---|---|
| keepResolution | boolean | – | Keep original size above 12 MP (costs 2 credits). |
| maxCredits | integer | yes | The most this call may spend. Required. 1 credit is one clean up to 12 MP. |
| outputPath | string | – | Where to save the result. Must not already exist. |
| path | string | yes | Absolute path to the input image. |
| rightsAttested | boolean | – | True only if the user explicitly confirmed the rights statement. Ignored when the client can ask the user directly. |
| vendorHint | string | – | Where the image was made, if identify found no hidden target. |
No output schema declared.
No examples provided.
demarker_get_balance Get credit balance ~24
Read the account's credit balance. Needs DEMARKER_API_KEY.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
demarker_get_job Get a job ~44
Status and report for a job from demarker_identify or demarker_clean. Needs DEMARKER_API_KEY.
| Name | Type | Req | Description |
|---|---|---|---|
| jobId | string | yes | The jobId. |
No output schema declared.
No examples provided.
demarker_get_pricing Get pricing ~25
Credits per clean and the credit packs. Public, no key needed.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
demarker_identify Identify an image (free) ~80
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.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Absolute path to a PNG, JPG, WebP or AVIF file. |
No output schema declared.
No examples provided.
How do I install the Demarker MCP server?
Demarker runs locally as an npm package, launched with npx -y @demarker/mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @demarker/mcp
claude mcp add io-demarker-mcp -- npx -y @demarker/mcp
What is the Demarker MCP server?
Demarker is an MCP server listed in the public MCP registry as io.demarker/mcp. Identify what an AI image carries (marks, metadata, watermarks), then clean it. This page covers its npm package (@demarker/mcp).
Is the Demarker MCP server safe to use?
Demarker scores 73 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 23 October 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Demarker MCP server expose?
Demarker exposes 5 tools: demarker_identify, demarker_clean, demarker_get_balance, demarker_get_pricing, demarker_get_job. Their descriptions and schemas cost roughly 400 tokens of context every time the server is loaded.
Is the Demarker MCP server still maintained?
Demarker is still listed as active in the MCP registry. We last reached this channel on 23 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Demarker MCP server under?
Demarker declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.