Used in agent projects
29
0.2% of 12,697 public repos built with AI coding agents
Rank in utilities
#77 of 109
by use in those projects
Downloads
49.9M
PyPI, last 7 days, msgpack
GitHub stars
2,107
last push Oct 2, 2026
How msgpack is used
msgpack is a dependency in 29 of the 12,697 public GitHub projects set up for AI coding agents that we scanned (0.2%), #77 of 109 in utilities. The most used alternative there is clsx. Projects that use it most often also use Requests (75.9%), Pydantic (72.4%), websockets (72.4%).
Often used with msgpack
| Requests | 75.9% of msgpack projects · 14.3× more than average |
|---|---|
| Pydantic | 72.4% of msgpack projects · 14.2× more than average |
| websockets | 72.4% of msgpack projects · 32.1× more than average |
| python-dotenv | 69.0% of msgpack projects · 10.6× more than average |
| PyYAML | 69.0% of msgpack projects · 22.7× more than average |
| aiohttp | 65.5% of msgpack projects · 28.2× more than average |
| urllib3 | 65.5% of msgpack projects · 43.1× more than average |
| cryptography | 62.1% of msgpack projects · 37.0× more than average |
By coding agent
| Claude Code | 0.2% of projects set up for it |
|---|---|
| GitHub Copilot | 0.2% of projects set up for it |
| Cursor | 0.3% of projects set up for it |
Share of public repos configured for each agent that list msgpack as a dependency.
Install
| Package | pip install msgpack |
|---|---|
| Main stacks | Python (27), Next.js (2) |
| Example projects | fireblocks/fireblocks-key-recovery-tool, v0idum/raydium-volume-booster, petro1eum/trust_chain, NA-DEGEN-GIRL/multi-perp-dex, nihilistau/CosySim |
Alternatives to msgpack
| Tool | Used in agent projects | Downloads / wk | GitHub stars | License |
|---|---|---|---|---|
| clsx npm Tiny utility for conditionally constructing className strings. |
2,251 (17.7%) | 126M | 9,847 | MIT |
| date-fns npm Modern JavaScript date utility library with comprehensive formatting functions. |
1,079 (8.5%) | 97.6M | 36.6K | MIT |
| uuid npm Generate RFC9562 compliant UUIDs for unique identifiers in applications. |
454 (3.6%) | 296M | 15.3K | MIT |
| PyYAML pypi YAML parser and emitter for reading and writing YAML configuration files. |
385 (3.0%) | 239M | 2,954 | MIT |
| Lodash npm Modular utility library with methods for common programming tasks and data manipulation. |
269 (2.1%) | 162M | 61.4K | MIT |
| bn.js npm Big number library for handling arbitrary-precision integers in JavaScript. |
217 (1.7%) | 62.1M | 1,230 | MIT |
| python-dateutil pypi Extensions to Python's datetime module for advanced date and time manipulation. |
165 (1.3%) | 233M | 2,638 | Dual License |
| yaml npm JavaScript YAML parser and stringifier with full spec compliance. |
164 (1.3%) | 179M | 1,693 | ISC |