aws/aws-lambda-runtime-interface-emulator

Health v2 · maintenance only

Adoption not part of the score

1137 stars · 119 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A lightweight web-server proxy for AWS Lambda's Runtime and Extensions APIs that lets developers locally test Lambda functions packaged as container images. It converts HTTP requests into JSON events, maintaining functional parity with the Lambda Runtime API in the cloud.

Use cases

• test lambda container images locally
• invoke lambda functions with curl during development
• run lambda functions outside aws
• debug serverless functions before deployment
• include a local invocation endpoint in lambda docker images

When to choose

• you develop Lambda functions packaged as container images and want fast local testing
• you want to invoke functions with cURL or the Docker CLI without deploying to AWS
• you want your container to accept HTTP requests for portability across computes

When to avoid

• you need to emulate Lambda's orchestrator, security, or authentication configurations
• you test Lambda functions packaged as zip archives rather than container images
• you need full integration testing against real Lambda behavior in the cloud

Facets

cli-tool · maturity active

http-server proxy testing developer-tools cloud-computing developer-tools testing cli cross-platform aws-lambda serverless container-images local-testing go linux docker

Member repositories

For agents

markdown · JSON · MCP: product_card(name="aws/aws-lambda-runtime-interface-emulator")