Decision Workspace
catenary-mcp vs pathfinder-mcp-lsp vs harness-lsp
Side-by-side comparison of Rust crates
50
catenary-mcp
experimentalv1.6.1
A high-performance multiplexing bridge between MCP (Model Context Protocol) and LSP (Language Server Protocol). Enables LLMs to access IDE-grade code intelligence across multiple languages simultaneously with smart routing and UTF-8 accuracy.
56
pathfinder-mcp-lsp
experimentalv0.7.1
Pathfinder LSP client — the Lawyer engine
50
harness-lsp
experimentalv0.1.1
LSP tool for AI agent harnesses — language-server-protocol operations (hover, definition, references, symbols) with manifest, lazy-spawn policy, pluggable client adapter
Core Metrics
| catenary-mcp | pathfinder-mcp-lsp | harness-lsp | |
|---|---|---|---|
| Health Score | 50 | 56 | 50 |
| Total Downloads | 588 | 513 | 2.6K |
| 30d Downloads | 0 | 0 | 2.5K |
| Dependents | 0 | 25 | 2 |
| Releases | 34 | 23 | 2 |
| Last Updated | 46d ago | 16d ago | 33d ago |
| Age | 3m | 1m | 1m |
Health Breakdown
catenary-mcp
Maintenance
16
Quality
13
Community
5
Popularity
3
Documentation
13
pathfinder-mcp-lsp
Maintenance
18
Quality
13
Community
9
Popularity
3
Documentation
13
harness-lsp
Maintenance
12
Quality
12
Community
7
Popularity
4
Documentation
15
Technical Details
| catenary-mcp | pathfinder-mcp-lsp | harness-lsp | |
|---|---|---|---|
| Version | 1.6.1 | 0.7.1 | 0.1.1 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | AGPL-3.0-or-later | MIT | MIT |
| Dependencies | 34 | 15 | 10 |
| Crate Size | 466KB | 91KB | 30KB |
| Features | 1 | 1 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2021 | 2021 |
| MSRV | — | — | 1.75 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •pathfinder-mcp-lsp leads with a health score of 56/100, but none of the options score above 80.
- •harness-lsp has the most downloads (2.6K), suggesting wider adoption.
- •pathfinder-mcp-lsp, harness-lsp are pre-1.0 — API may change.