# b612 MCP Server

**Canonical:** https://apis.io/apis/hakuto-0209-com/b612-mcp-server/  
**Provider:** HaneruTo — https://apis.io/providers/hakuto-0209-com/  
**Base URL:** https://mcp.hakuto-0209.com/mcp  
**Documentation:** https://mcp.hakuto-0209.com/

b612 MCP Server is one of 2 APIs that [HaneruTo](https://apis.io/providers/hakuto-0209-com/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP, agent-native, and Code Review. The published artifact set on APIs.io includes API documentation.

Remote Model Context Protocol server at https://mcp.hakuto-0209.com/mcp (Streamable HTTP, POST only — GET returns 406 — protocol version 2025-06-18, serverInfo b612 0.1.0, hosted on Vercel). initialize and tools/list answer anonymously with ten tools, every one carrying a real inputSchema and execution.taskSupport "forbidden": b612_principles, b612_review_checklist, b612_patterns, b612_domain_preset, b612_rules, b612_design, b612_reference, b612_grow, b612_notes and b612_update. b612_principles was also callable without a key; the provider's quickstart configures the connection with an x-b612-key licence header (`claude mcp add --transport http b612 https://mcp.hakuto-0209.com/mcp --header "x-b612-key: <your key>"`). resources/list and prompts/list return -32601. The initialize instructions tell the agent to apply checklists and rules to code locally — no source code is sent to the server.

## Machine-readable artifacts (4)

- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/hakuto-0209-com/refs/heads/main/mcp/hakuto-0209-com-mcp.yml
- **MCPServer** — https://mcp.hakuto-0209.com/mcp
- **Documentation** — https://mcp.hakuto-0209.com/
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/hakuto-0209-com/refs/heads/main/apis.yml

## Other HaneruTo APIs (1)

- [b612 A2A Agent](https://apis.io/apis/hakuto-0209-com/b612-a2a-agent/)

## Tags

MCP, agent-native, Code Review

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/hakuto-0209-com/b612-mcp-server/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/hakuto-0209-com/.