io.github.imgul/notion-arena
notion-arena
MCP server for Notion Arena — 143 Notion components: 132 widgets + 11 recipes
alive probed 2026-10-19
10tools
≈ 1.3ktokens, estimate
≈ 0.6 %of Claude's 200k window
0.9×the median server
247 msto initialize
10 msto list tools
- Run it
- npx -y notion-arena-mcp@0.2.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- notion-arena 0.2.0
- Capabilities
- tools
- Instructions
- none
- Of a 1M window
- ≈ 0.1 % of a 1M context window, estimate
- Claude count
- The count_tokens endpoint refused the tool schemas: invalid x-api-key. The estimate stands in.
- Repository
- https://github.com/SynergyFlowLabs/notion-arena
- Registry
- active, updated 2026-10-11 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
Estimates with the o200k_base tokenizer.
| Tool | o200k estimate | Share of this server |
|---|---|---|
| list_components | 242 | 19 % |
| plan_install | 213 | 17 % |
| search_components | 142 | 11 % |
| build_embed_url | 134 | 11 % |
| get_registry_item | 127 | 10 % |
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The Anthropic count_tokens endpoint refused the tool schemas (invalid x-api-key). A client that validates schemas can refuse them too.