Context Minifier & State Guard — MCP middleware proxy that reduces token waste, prevents tool attrition, and eliminates context rot
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"mcp-spine","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Attributed to the source that supplied each field. Treated as claims, not facts.
# MCP Spine [](https://glama.ai/mcp/servers/Donnyb369/mcp-spine) **The middleware layer MCP is missing.** Security, routing, token control, and compliance — between your LLM and your tools. MCP Spine is a local-first proxy that sits between Claude Desktop (or any MCP client) and your MCP servers. One config, one entry point, full control over what goes in, what comes out, and what gets logged. 57 tools across 5 servers. One proxy. Zero tokens wasted. ## The Problem You've connected Claude to GitHub, Slack, your database, your filesystem. Now you have 40+ tools loaded, thousands of tokens burned on schemas every turn, no audit trail, no rate limits, and no way to stop the LLM from reading your boss's DMs. MCP gives agents power. Spine gives you control. ## What It Does | Layer | What it solves | |---|---| | **Security Proxy** | Rate limiting, secret scrubbing, path jails, HMAC audit trail | | **Semantic Router** | Only relevant tools reach the LLM — local embeddings, no API calls | | **Schema Minifier** | 61% token savings by stripping unnecessary schema fields | | **State Guard** | SHA-256 file pins prevent the LLM from editing stale versions | | **Token Budget** | Daily limits with warn/block enforcement and persistent tracking | | **Plugin System** | Custom middleware hooks — filter, transform, block per tool | | **HITL Confirmation** | Destructive tools pause for human approval before executing | | **Multi-User Audit** | Session-tagged audit trail for shared deployments | ## Demo  *Runs on Windows, macOS, and Linux. CI tested across all three.* ### Web Dashboard  ```bash mcp-spine web --db spine_audit.db ``` ## Install ```bash pip install mcp-spine # With semantic routing (optional) pip install mcp-spine[ml] ``` ## Quick Start …
Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
Every source is kept verbatim. Field changes are logged as events.