# aws/aws-lambda-rust-runtime

A Rust runtime for AWS Lambda

Repository: https://github.com/aws/aws-lambda-rust-runtime
Canonical: https://ross.abutalabs.com/products/aws-lambda-rust-runtime
Language: Rust
License: Apache-2.0
License Family: permissive
Last push: 2026-08-26T16:23:36+00:00

## Health v2 (maintenance only)
Score: 94/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 85, longevity 100
- inputs: {"age_days": 2855, "days_push": 7, "days_rel": 100, "gap_med": 24.5, "n_releases_24m": 15}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3609, forks 394 (observed 2026-08-28T04:08:11.627906+00:00)

## What it is
A set of Rust crates providing a runtime for running AWS Lambda functions written in Rust, including HTTP support, extensions, and typed event structs. It is maintained by AWS and integrates with the Lambda Runtime API.

## Use cases
- write aws lambda functions in rust
- build serverless http apis with api gateway and rust
- create lambda runtime extensions in rust
- deserialize lambda events into typed rust structs
- deploy rust binaries to aws lambda
- handle alb and lambda function url requests in rust

## When to choose
- you want to write AWS Lambda functions in Rust with official support
- you need strongly-typed Lambda event payloads
- you want low cold-start, high-performance serverless functions
- you build HTTP APIs behind API Gateway, ALB, or Lambda Function URLs

## When to avoid
- you are not deploying to AWS Lambda
- you prefer a higher-level framework like Cargo Lambda alone for scaffolding
- your team does not use Rust

## Facets
- artifact type: library
- maturity: active
- function: serverless, http-server, middleware, serialization, sdk
- domain: cloud-computing, backend, developer-tools, apis
- platform: rust, cloud, serverless
- tags: aws-lambda, serverless, rust, aws, faas, api-gateway, event-driven, linux

## Member repositories
- aws/aws-lambda-rust-runtime (main) score 94

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:11.627906+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 2026-08-29T18:33:39.987553+00:00, confidence not recorded.
  - readme: https://github.com/aws/aws-lambda-rust-runtime (fetched 2026-08-28T04:08:11.627906+00:00, sha e62b5705c974)
- Data as of 2026-08-30T08:39:29.467469+00:00.