com.materialscodegraph/mcg
MaterialsCodeGraph
Materials simulations for AI agents over MCP: binding token quote before every run, record after it.
alive probed 2026-10-14 · HTTP 200
12tools
5.0ktokens in Claude Opus 5.5
5.1ktokens in Claude Code
2.5 %of a 200k context window
3.0ko200k_base estimate
744 msto initialize
416 msto list tools
- Endpoint
- https://api.materialscodegraph.com/mcp (streamable-http)
- Host
- api.materialscodegraph.com
- Protocol
- 2025-06-18
- Reports itself as
- mcg 0.1.0
- Capabilities
- tools
- Instructions
- 165 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/materialscodegraph/materialscodegraph
- Website
- https://materialscodegraph.com
- Registry
- active, updated 2026-09-20 · registry entry
- Reachable
- 7 of the last 7 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| mcg_quote | 1 058 | 35 % |
| mcg_stage | 412 | 14 % |
| mcg_get_run | 301 | 10 % |
| mcg_clusters | 247 | 8 % |
| mcg_run | 232 | 8 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-14 09:13 | alive | 725 ms | 12 | 5.0k | 3.0k |
| 2026-10-08 11:05 | alive | 744 ms | 12 | 4.9k | 3.0k |
| 2026-10-05 00:17 | needs auth | ||||
| 2026-10-04 09:57 | needs auth | ||||
| 2026-10-04 07:50 | needs auth | ||||
| 2026-10-03 20:30 | needs auth | ||||
| 2026-10-03 17:48 | needs auth |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.materialscodegraph/mcg)
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.