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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).

agent aware

Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.

Kin Score

API Evangelist profiles Firecracker the way a machine reads it — 43 machine-readable artifacts across 1 API, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.

Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Firecracker scores 37.5/100 (thin), with a separate agent-readiness read of 23/100 (agent aware). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.

Kin Score

This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.

Kin Score Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0
Firecracker Kin Score — API readiness rating by API Evangelist

Put this on your own site. The badge is drawn live from Firecracker's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.

<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/firecracker/"
   title="Firecracker on API Evangelist — API profile and Kin Score">
  <img src="https://apis.io/badge/firecracker.svg"
       alt="Firecracker Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>

More shapes, themes and sizes → · Score as JSON · How badges work

How we profile Firecracker

Each block below is one kind of artifact we hold for Firecracker. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.

APIs 19

Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.

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 within the panel for all 19 ·

Open Collections 20

Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Scroll within the panel for all 20 ·

Pricing Plans 1

Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.

Published pricing tiers and plan structures.

Rate Limits 1

Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.

Documented rate limits and quota policies.

Firecracker Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

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

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

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

Every other property we hold for Firecracker — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.

Get Started 1

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Access & Security 1

Authentication, authorization, and security posture

Commercial 1

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Other 1

Properties that don't map to a standard resource type

← All providers · Data indexed from github.com/api-evangelist/firecracker · machine-readable index on apis.io

Where this information came from

This is an independent, third-party profile of Firecracker, 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.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.