# 3Hren/msgpack-rust

MessagePack implementation for Rust / msgpack.org[Rust]

Repository: https://github.com/3Hren/msgpack-rust
Canonical: https://ross.abutalabs.com/products/msgpack-rust
Language: Rust
License: MIT
License Family: permissive
Topics: rust, rmp, crates-rmp, serde, messagepack, msgpack, serialization, decoding
Last push: 2025-12-23T23:53:16+00:00

## Health v2 (maintenance only)
Score: 49/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 58, release rhythm 8, longevity 100
- inputs: {"age_days": 4184, "days_push": 253, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1417, forks 160 (observed 2026-08-28T04:04:40.081176+00:00)

## What it is
RMP is a complete pure-Rust implementation of the MessagePack binary serialization format, provided as three crates: a low-level encoder/decoder, a Serde integration, and a dynamic Value type. It supports zero-copy decoding, no-std usage, and schema-less deserialization.

## Use cases
- serialize Rust structs to MessagePack with Serde derive
- decode MessagePack messages without a known schema
- encode and decode binary data in a compact format instead of JSON
- parse MessagePack streams with zero-copy decoding
- use MessagePack in embedded or no-std Rust environments

## When to choose
- you need a compact, self-describing binary format in Rust with Serde support
- you want schema-less deserialization of arbitrary MessagePack payloads
- you need no-std or allocation-free encoding/decoding

## When to avoid
- you need bignums, dates, or other CBOR-only data types
- your data exchange requires JSON compatibility or human readability

## Facets
- artifact type: library
- maturity: stable
- function: serialization, parser
- domain: developer-tools, apis, files
- platform: rust, cross-platform
- tags: messagepack, serde, no-std, zero-copy, binary-format

## Member repositories
- 3Hren/msgpack-rust (main) score 49

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:40.081176+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:37:59.351040+00:00, confidence not recorded.
  - readme: https://github.com/3Hren/msgpack-rust (fetched 2026-08-28T04:04:40.081176+00:00, sha e6044427cdb5)
- Data as of 2026-08-30T08:39:29.467469+00:00.