Mcptoon
Token-efficient MCP CLI client
Details
- External ID
- 49253721
- Source
- HN
- Company
- —
- Product
- Mcptoon
- Website domain
- github.com
- Launched
- Aug. 11, 2026
- Cohort
- —
- Upvotes
- 73
- Upvotes percentile
- 0.8985215053763441
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Enrichment
- Theme
- Model Context Protocol developer tools
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- efficient mcp cli client
- Manually corrected
- False
Could you build this?
Yes It is a command-line interface client implementing the Model Context Protocol (MCP) spec with optimized prompt/token formatting, easily written in Node.js, Python, or Go.
Discussion
20 comments analyzed.
Competitors mentioned: Claude Code's deferred tool loading, Headroom (tool call optimization), CodeMode for MCPs
Concerns raised: Using empty-set symbol (∅) as delimiter is poor tokenizer choice, Not returning full tool schema - unclear if compression is just serialization, Confusion between token counts and byte counts in benchmarks, Models trained on JSON templates may struggle with different format, Aggressive compression may be too lossy
Feature requests: Make MCP context cost visible before agent execution, Support for tool search/filtering like other harnesses, Tokenizer-agnostic approach
Competitors
Other products that read as similar to this one — 1251 launches clear the similarity bar, closest 8 shown.
Attention rank: #129 of 1252 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 284 days after the earliest competitor.
- mcpc · hn · 2026-01-06 · 50 upvotes · similarity 0.69
- Creature · hn · 2026-02-10 · 11 upvotes · similarity 0.64
- Karada.ai · hn · 2026-09-23 · 9 upvotes · similarity 0.63
- Smart Scan · hn · 2025-11-24 · 15 upvotes · similarity 0.59
- MCP-stama · hn · 2026-08-13 · 73 upvotes · similarity 0.57
- Do we need MCPs? Reverse-engineered Slack and Linear API for Evals & RL · hn · 2025-12-04 · 11 upvotes · similarity 0.57
- Godot-MCP · github · 2026-09-17 · 16 upvotes · similarity 0.57
- dasp · github · 2026-09-25 · 13 upvotes · similarity 0.56
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.