A
licenseC
qualityC
maintenanceMCP server for local compression of various image formats
1
18
33
MIT
zrw-mcp
by ceedot-rock
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@zrw-mcpcompress the array [0,0,0,1,2,3]"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Zero Range Wave Compression (ZRW) v5
Pure-JavaScript integer compressor that beats gzip and brotli on zeros, ramps, and walks.
Zero Range Wave is a specialized lossless codec for integer sequences. It is designed for sensor data, counters, scores, time-series deltas, and any stream that contains long runs, smooth ramps, or small random walks. On those patterns it routinely produces dramatically smaller output than general-purpose compressors.
Input | ZRW packed | vs brotli | vs gzip | Win |
zeros × 1 000 | 8 B | 13 B | 39 B | clear win |
ramp × 1 000 | 8 B | 1 132 B | 1 436 B | ~141× |
walk 10k (step 1) | 128 B | — | ~5 223 B | ~40× |
walk 10k (step 5) | 420 B | — | ~11 231 B | ~26× |
Full encode/decode round-trip. Library + HTTP API + MCP server.
Install
npm i zero-range-wave-compressionnpm package · Node ≥ 18 · ESM only.
Git install (optional): npm i github:ceedot-rock/zero-range-wave-compression
Related MCP server: mcp-compress
Quick start
import { compress, decompress, setLicenseKey } from "zero-range-wave-compression";
// Free Gate or paid key
setLicenseKey(process.env.ZRW_LICENSE); // ZRW-FREE-… / ZRW-START-… / ZRW-PRO-… / ZRW-L33T-…
const packed = compress([0, 0, 0, 1, 2, 3, 4, 5]); // Uint8Array
const back = decompress(packed); // exact round-tripWhy it wins on these patterns
Single-op prefix-free codes for the common cases (repeat, ±1, second difference, Rice, fallback)
Run-length escape only when a run is long enough (threshold = 4) so short walks stay fast
Fibonacci coding for small integers, Elias ω escape for large values
No dictionary warmup cost — excellent on short and medium sequences
Pricing (one-time license)
Tier | Price | Ops / month | Max ints / call | Livestream |
Free Gate (25 seats) | $0 | 100 k | 10 k | No |
Starting Gate | $79 | 5 M | 100 k | No |
Pro Starter | $249 | 50 M | 1 M | Yes |
l33t Unlimited | $699 | Unlimited | Unlimited | Yes |
Details: PRICING.md · Free key process: FREE_KEYS.md
Surfaces
Surface | How |
Library |
|
HTTP API |
|
MCP |
|
Same license key works for all three.
Related packages (SlidPhiLabs)
Package | Role |
General-purpose pure-JS compressor (Fib / Rice / ω / LZ77) | |
Adaptive Fibonacci + Blackjack V2 | |
Omni-Dormant integer codecs | |
Time-series DB using this family | |
Exact multi-target code playground |
Site: slidphilabs.vercel.app
License
Commercial license (see PRICING.md). Free Gate limited to 25 evaluation seats.
This server cannot be deployed
Maintenance
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