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fly-io Apps API

Operations for creating, listing, and deleting Fly Apps. Every Fly Machine belongs to a Fly App, which groups related Machines together.

fly-io Apps API is one of 9 APIs that Fly Io publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Application. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 4 operations across 2 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 2 base URLs: https://{provider_base_url}, https://api.fly.io.

4 operations 2 paths 4 schemas 1 DELETE2 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Base URL
https://api.machines.dev
Authentication
HTTP Bearer, HTTP Bearer, API Key
Terms of Service
Resource Areas
1

Authentication & Security 3

fly-io Apps API declares 3 security schemes for authenticating requests. It accepts HTTP bearer tokens (flySharedSecret). It accepts HTTP bearer tokens (oauthBearerAuth). An API key is passed in the header as X-Fly-Signature (webhookHmac). By default, every request must be authenticated.

  • flySharedSecret — Shared secret provided by Fly.io to the extension provider. Fly.io includes this secret in an Authorization Bearer header on all requests to the provider's API…
  • oauthBearerAuth — Fly.io OAuth access token obtained from the token exchange endpoint.
  • webhookHmac — HMAC-SHA256 signature of the raw request body, computed using the webhook signing secret. Recipients must verify this signature before processing the payload.

Paths & Operations 4

Across 2 paths, the API surfaces 4 operations — 1 DELETE, 2 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

Apps 4

Operations for creating, listing, and deleting Fly Apps. Every Fly Machine belongs to a Fly App, which groups related Machines together.

GET
/v1/apps
List apps in an organization
listApps 1 param → 200401
POST
/v1/apps
Create a Fly App
createApp body → 201400401
GET
/v1/apps/{app_name}
Get a Fly App
getApp 1 param → 200401404
DELETE
/v1/apps/{app_name}
Delete a Fly App
deleteApp 2 params → 202401404

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are App (7 properties), CreateAppRequest (4 properties), ErrorResponse (2 properties), Organization (2 properties). Each schema is shown below with its type and property counts.

App
object
A Fly App, which is a logical grouping of related Fly Machines.
7 properties
CreateAppRequest
object
Request body for creating a new Fly App.
4 properties 2 required
Organization
object
A Fly.io organization that owns apps and resources.
2 properties
ErrorResponse
object
A standard error response returned by the API on failure.
2 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

fly-io-apps-api-openapi.yml Raw ↑

Other APIs Fly Io publishes across the network.

Fly.io Machines API
Fly.io GraphQL API
Fly.io Extensions API
fly-io OAuth API
fly-io SSO API
fly-io Tokens API
fly-io Volumes API
fly-io Webhooks API
Where this information came from

This is an independent, third-party profile of fly-io Apps API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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