io.github.thevrus/marklayer
MarkLayer
Work visual annotations on a live webpage: watch, acknowledge, resolve, reply, or leave your own.
alive probed 2026-10-15
12tools
3.1ktokens in Claude Opus 5.5
3.2ktokens in Claude Code
1.5 %of a 200k context window
1.8ko200k_base estimate
314 msto initialize
4 msto list tools
- Run it
- npx -y marklayer-mcp@0.5.0 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- marklayer-mcp 0.5.0
- Capabilities
- tools
- Instructions
- 1 510 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/thevrus/MarkLayer
- Website
- https://marklayer.app
- Registry
- active, updated 2026-09-08 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| marklayer_suggest_edit | 378 | 21 % |
| marklayer_create_annotation | 335 | 19 % |
| marklayer_watch_annotations | 296 | 16 % |
| marklayer_read_page | 165 | 9 % |
| marklayer_list_annotations | 146 | 8 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.thevrus/marklayer)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.