# Azure Functions

The host/runtime that powers Azure Functions

Repository: https://github.com/Azure/azure-functions-host
Canonical: https://ross.abutalabs.com/products/azure-functions
Homepage: https://functions.azure.com
Language: C#
License: MIT
License Family: permissive
Topics: azure-functions, azure-webjobs-sdk, serverless, azure
Last push: 2026-08-26T19:34:50+00:00
Link (homepage): https://functions.azure.com
Link (site_page): https://azure.microsoft.com/en-us/pricing
Link (site_page): https://azure.microsoft.com/en-us/pricing/purchase-options/azure-account
Link (site_page): https://azure.microsoft.com/en-us/pricing/free-services
Link (site_page): https://azure.microsoft.com/en-us/pricing/purchase-options

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 99, release rhythm 86, longevity 100
- inputs: {"age_days": 4005, "days_push": 7, "days_rel": 12, "gap_med": 1.5, "n_releases_24m": 95}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2020, forks 483 (observed 2026-08-28T04:06:06.263081+00:00)

## What it is
Azure Functions is Microsoft's serverless, event-driven compute platform, and this repo contains the open-source runtime host that executes functions in many languages. It builds on the Azure WebJobs SDK to provide triggers and bindings for events like HTTP requests, timers, queues, and blobs.

## Use cases
- run serverless functions on azure
- build event-driven http apis without managing servers
- process queue and blob events with functions
- run scheduled cron jobs in the cloud
- host functions locally for development and testing
- extend the azure functions runtime with custom triggers

## When to choose
- you want event-driven, pay-per-execution compute on Azure
- you need multi-language function support with rich triggers and bindings
- you want to self-host or debug the functions runtime locally
- you are already invested in the Azure ecosystem

## When to avoid
- you need a cloud-agnostic or fully self-hosted serverless platform like Knative or OpenFaaS
- you want long-running, always-on workloads better suited to VMs or containers
- you prefer a non-Azure cloud such as AWS Lambda or Google Cloud Functions

## Facets
- artifact type: framework
- maturity: active
- function: serverless, http-server, workflow-automation, scheduling, webhook, sdk
- domain: cloud-computing, backend, apis
- platform: cloud, cross-platform, dotnet, self-hosted
- tags: azure, functions-as-a-service, event-driven, triggers-and-bindings, webjobs-sdk, microsoft, faas, devops, automation, docker

## Member repositories
- Azure/azure-functions-host (main) score 95
- Azure/azure-functions-core-tools (plugin) score 99
- Azure/Azure-Functions (docs) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:06.263081+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 2026-08-30T03:00:12.814846+00:00, confidence not recorded.
  - readme: https://github.com/Azure/azure-functions-host (fetched 2026-08-28T04:06:06.263081+00:00, sha 375a9282561e)
  - homepage: https://functions.azure.com (fetched 2026-08-29T10:41:55.840956+00:00, sha 99449b133d7e)
  - site_page: https://azure.microsoft.com/en-us/pricing (fetched 2026-08-29T10:41:55.850455+00:00, sha 5c0ba059fc5c)
  - site_page: https://azure.microsoft.com/en-us/pricing/purchase-options/azure-account (fetched 2026-08-29T10:41:55.852817+00:00, sha 159454721c0e)
  - site_page: https://azure.microsoft.com/en-us/pricing/free-services (fetched 2026-08-29T10:41:55.855174+00:00, sha 5048ccf63380)
  - site_page: https://azure.microsoft.com/en-us/pricing/purchase-options (fetched 2026-08-29T10:41:55.857007+00:00, sha bfb047f6ea26)
  - site_page: https://azure.microsoft.com/en-us/pricing/offers/savings-plans (fetched 2026-08-29T10:41:55.860463+00:00, sha 6e9672fd6940)
  - site_page: https://azure.microsoft.com/en-us/pricing/offers/reservations (fetched 2026-08-29T10:41:55.862742+00:00, sha 8216650b2d5f)
  - site_page: https://azure.microsoft.com/en-us/pricing/calculator (fetched 2026-08-29T10:41:55.858832+00:00, sha 73898700cc14)
  - site_page: https://azure.microsoft.com/en-us/pricing/offers/hybrid-benefit (fetched 2026-08-29T10:41:55.865086+00:00, sha 838763facee0)
- Data as of 2026-08-30T08:39:29.467469+00:00.