# fly-io Webhooks API

**Canonical:** https://apis.io/apis/fly-io/fly-io-webhooks-api/  
**Provider:** fly-io — https://apis.io/providers/fly-io/  
**Base URL:** https://api.machines.dev  
**Documentation:** https://fly.io/docs/machines/api/

fly-io Webhooks API is one of 9 APIs that [fly-io](https://apis.io/providers/fly-io/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Webhook. The published artifact set on APIs.io includes an OpenAPI specification.

Webhook endpoints for bidirectional event delivery between Fly.io and extension providers. Both sides sign their webhook payloads using HMAC-SHA256 for verification.

## Machine-readable artifacts (1)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/fly-io/refs/heads/main/openapi/fly-io-webhooks-api-openapi.yml

## Other fly-io APIs (8)

- [Fly.io Machines API](https://apis.io/apis/fly-io/machines-api/)
- [Fly.io GraphQL API](https://apis.io/apis/fly-io/graphql-api/)
- [Fly.io Extensions API](https://apis.io/apis/fly-io/extensions-api/)
- [fly-io Apps API](https://apis.io/apis/fly-io/fly-io-apps-api/)
- [fly-io OAuth API](https://apis.io/apis/fly-io/fly-io-oauth-api/)
- [fly-io SSO API](https://apis.io/apis/fly-io/fly-io-sso-api/)
- [fly-io Tokens API](https://apis.io/apis/fly-io/fly-io-tokens-api/)
- [fly-io Volumes API](https://apis.io/apis/fly-io/fly-io-volumes-api/)

## Tags

Webhook

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/fly-io/fly-io-webhooks-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/fly-io/.