Firecracker website screenshot

Firecracker

Firecracker is an open source virtual machine monitor (VMM) built by Amazon Web Services that uses KVM to create and manage lightweight microVMs. Designed for serverless computing and container workloads, it provides the security and isolation of traditional VMs with the speed and resource efficiency of containers. Firecracker exposes a RESTful management API over a Unix Domain Socket, specified in OpenAPI (Swagger 2.0).

Firecracker publishes 19 APIs on the APIs.io network, including Actions API, Balloon API, Boot Source API, and 16 more. Tagged areas include Containers, MicroVMs, Open Source, Serverless, and Virtualization.

Firecracker’s developer surface includes documentation, getting-started guide, changelog, FAQ, engineering blog, and 7 more developer resources.

35.0/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
19 APIs
ContainersMicroVMsOpen SourceServerlessVirtualizationKVM

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 35.0/100 · thin
Contract Quality 8.1 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 8.2 / 13
Governance 0.0 / 12
Discoverability 6.5 / 10
Agent readiness — 22/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/firecracker: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 19

Individual APIs this provider publishes, each with its own machine-readable definition.

Firecracker Actions API

The Actions API from Firecracker — 1 operation(s) for actions.

Firecracker Balloon API

The Balloon API from Firecracker — 5 operation(s) for balloon.

Firecracker Boot Source API

The Boot Source API from Firecracker — 1 operation(s) for boot source.

Firecracker Cpu Config API

The Cpu Config API from Firecracker — 1 operation(s) for cpu config.

Firecracker Drives API

The Drives API from Firecracker — 1 operation(s) for drives.

Firecracker Entropy API

The Entropy API from Firecracker — 1 operation(s) for entropy.

Firecracker Firecracker API API

The Firecracker API API from Firecracker — 1 operation(s) for firecracker api.

Firecracker Hotplug API

The Hotplug API from Firecracker — 1 operation(s) for hotplug.

Firecracker Logger API

The Logger API from Firecracker — 1 operation(s) for logger.

Firecracker Machine Config API

The Machine Config API from Firecracker — 1 operation(s) for machine config.

Firecracker Metrics API

The Metrics API from Firecracker — 1 operation(s) for metrics.

Firecracker Mmds API

The Mmds API from Firecracker — 2 operation(s) for mmds.

Firecracker Network Interfaces API

The Network Interfaces API from Firecracker — 1 operation(s) for network interfaces.

Firecracker Pmem API

The Pmem API from Firecracker — 1 operation(s) for pmem.

Firecracker Serial API

The Serial API from Firecracker — 1 operation(s) for serial.

Firecracker Snapshot API

The Snapshot API from Firecracker — 2 operation(s) for snapshot.

Firecracker Version API

The Version API from Firecracker — 1 operation(s) for version.

Firecracker Vm API

The Vm API from Firecracker — 2 operation(s) for vm.

Firecracker Vsock API

The Vsock API from Firecracker — 1 operation(s) for vsock.

Scroll for all 19

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Firecracker Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Firecracker Agentic Access

38 operations · 29 acting · 1 human-in-the-loop

38 operations · 29 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 1

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Company 2

The organization behind the API

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: firecracker
name: Firecracker
description: Firecracker is an open source virtual machine monitor (VMM) built by Amazon Web Services that uses KVM to create
  and manage lightweight microVMs. Designed for serverless computing and container workloads, it provides the security and
  isolation of traditional VMs with the speed and resource efficiency of containers. Firecracker exposes a RESTful management
  API over a Unix Domain Socket, specified in OpenAPI (Swagger 2.0).
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/firecracker.png
tags:
- AWS
- Containers
- MicroVMs
- Open Source
- Serverless
- Virtualization
- KVM
url: https://raw.githubusercontent.com/api-evangelist/firecracker/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-05-19'
specificationVersion: '0.19'
apis:
- aid: firecracker:firecracker-actions-api
  name: Firecracker Actions API
  description: The Actions API from Firecracker — 1 operation(s) for actions.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Actions
  properties:
  - type: OpenAPI
    url: openapi/firecracker-actions-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-balloon-api
  name: Firecracker Balloon API
  description: The Balloon API from Firecracker — 5 operation(s) for balloon.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Balloon
  properties:
  - type: OpenAPI
    url: openapi/firecracker-balloon-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-boot-source-api
  name: Firecracker Boot Source API
  description: The Boot Source API from Firecracker — 1 operation(s) for boot source.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Boot Source
  properties:
  - type: OpenAPI
    url: openapi/firecracker-boot-source-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-cpu-config-api
  name: Firecracker Cpu Config API
  description: The Cpu Config API from Firecracker — 1 operation(s) for cpu config.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Cpu Config
  properties:
  - type: OpenAPI
    url: openapi/firecracker-cpu-config-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-drives-api
  name: Firecracker Drives API
  description: The Drives API from Firecracker — 1 operation(s) for drives.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Drives
  properties:
  - type: OpenAPI
    url: openapi/firecracker-drives-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-entropy-api
  name: Firecracker Entropy API
  description: The Entropy API from Firecracker — 1 operation(s) for entropy.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Entropy
  properties:
  - type: OpenAPI
    url: openapi/firecracker-entropy-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-firecracker-api-api
  name: Firecracker Firecracker API API
  description: The Firecracker API API from Firecracker — 1 operation(s) for firecracker api.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Firecracker API
  properties:
  - type: OpenAPI
    url: openapi/firecracker-firecracker-api-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-hotplug-api
  name: Firecracker Hotplug API
  description: The Hotplug API from Firecracker — 1 operation(s) for hotplug.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Hotplug
  properties:
  - type: OpenAPI
    url: openapi/firecracker-hotplug-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-logger-api
  name: Firecracker Logger API
  description: The Logger API from Firecracker — 1 operation(s) for logger.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Logger
  properties:
  - type: OpenAPI
    url: openapi/firecracker-logger-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-machine-config-api
  name: Firecracker Machine Config API
  description: The Machine Config API from Firecracker — 1 operation(s) for machine config.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Machine Config
  properties:
  - type: OpenAPI
    url: openapi/firecracker-machine-config-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-metrics-api
  name: Firecracker Metrics API
  description: The Metrics API from Firecracker — 1 operation(s) for metrics.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/firecracker-metrics-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-mmds-api
  name: Firecracker Mmds API
  description: The Mmds API from Firecracker — 2 operation(s) for mmds.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Mmds
  properties:
  - type: OpenAPI
    url: openapi/firecracker-mmds-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-network-interfaces-api
  name: Firecracker Network Interfaces API
  description: The Network Interfaces API from Firecracker — 1 operation(s) for network interfaces.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Network Interfaces
  properties:
  - type: OpenAPI
    url: openapi/firecracker-network-interfaces-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-pmem-api
  name: Firecracker Pmem API
  description: The Pmem API from Firecracker — 1 operation(s) for pmem.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Pmem
  properties:
  - type: OpenAPI
    url: openapi/firecracker-pmem-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-serial-api
  name: Firecracker Serial API
  description: The Serial API from Firecracker — 1 operation(s) for serial.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Serial
  properties:
  - type: OpenAPI
    url: openapi/firecracker-serial-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-snapshot-api
  name: Firecracker Snapshot API
  description: The Snapshot API from Firecracker — 2 operation(s) for snapshot.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Snapshot
  properties:
  - type: OpenAPI
    url: openapi/firecracker-snapshot-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-version-api
  name: Firecracker Version API
  description: The Version API from Firecracker — 1 operation(s) for version.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Version
  properties:
  - type: OpenAPI
    url: openapi/firecracker-version-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-vm-api
  name: Firecracker Vm API
  description: The Vm API from Firecracker — 2 operation(s) for vm.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Vm
  properties:
  - type: OpenAPI
    url: openapi/firecracker-vm-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
- aid: firecracker:firecracker-vsock-api
  name: Firecracker Vsock API
  description: The Vsock API from Firecracker — 1 operation(s) for vsock.
  humanURL: https://github.com/firecracker-microvm/firecracker
  baseURL: http://localhost/
  tags:
  - Vsock
  properties:
  - type: OpenAPI
    url: openapi/firecracker-vsock-api-openapi.yml
  - type: Documentation
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
  - type: GettingStarted
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
  - type: API Requests
    url: https://github.com/firecracker-microvm/firecracker/tree/main/docs/api_requests
  - type: Specification
    url: https://github.com/firecracker-microvm/firecracker/blob/main/SPECIFICATION.md
  - type: Design
    url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/design.md
common:
- type: AgenticAccess
  url: agentic-access/firecracker-agentic-access.yml
- type: Website
  url: https://firecracker-microvm.github.io/
- type: GitHubOrganization
  url: https://github.com/firecracker-microvm
- type: GitHubRepository
  url: https://github.com/firecracker-microvm/firecracker
- type: Documentation
  url: https://github.com/firecracker-microvm/firecracker/tree/main/docs
- type: GettingStarted
  url: https://github.com/firecracker-microvm/firecracker/blob/main/docs/getting-started.md
- type: ChangeLog
  url: https://github.com/firecracker-microvm/firecracker/blob/main/CHANGELOG.md
- type: FAQ
  url: https://github.com/firecracker-microvm/firecracker/blob/main/FAQ.md
- type: Security
  url: https://github.com/firecracker-microvm/firecracker/blob/main/SECURITY.md
- type: Blog
  url: https://aws.amazon.com/blogs/opensource/tag/firecracker/
- type: Slack
  url: https://join.slack.com/t/firecracker-microvm/shared_invite/zt-2tc0mfxpc-tU~HYAYSzLDl5XGGJU3YIg
- type: Email
  url: mailto:firecracker-maintainers@amazon.com
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com