io.github.putervision/behavior-mcp
Behavior Runtime MCP
In-browser ~60Hz behavior tree execution engine with reactive triggers and blackboard projection.
alive probed 2026-10-19
10tools
≈ 2.3ktokens, estimate
≈ 1.2 %of Claude's 200k window
1.6×the median server
133 msto initialize
7 msto list tools
- Run it
- npx -y @putervision/behavior-mcp@0.4.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- io.github.putervision/behavior-mcp 0.4.1
- Capabilities
- prompts, resources, tools
- Instructions
- none
- Of a 1M window
- ≈ 0.2 % 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/putervision/behavior-mcp
- Website
- https://behaviormcp.com
- Registry
- active, updated 2026-10-03 · 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 |
|---|---|---|
| load_behavior | 368 | 16 % |
| manage_blackboard | 360 | 15 % |
| manage_behaviors | 280 | 12 % |
| get_metrics | 256 | 11 % |
| register_trigger | 225 | 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.