Chainguard
Chainguard builds, secures, and maintains a catalog of hardened, minimal container images and software supply chain security tools. Its flagship Chainguard Images rebuild open source software from source daily on a zero-known-CVE promise, signed with Sigstore, and distributed through the cgr.dev registry. The Chainguard platform exposes REST APIs, a command- line tool (chainctl), a Terraform provider, and an SDK for managing organizations, IAM, image repositories, registries, vulnerabilities, and event subscriptions. Chainguard Libraries extends the model to language ecosystems (Java, Python, Go, Node.js).
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Chainguard the way a machine reads it — 47 machine-readable artifacts across 6 APIs, 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 — Chainguard scores 25.2/100 (emerging), with a separate agent-readiness read of 9/100 (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
How this is scored →scored 2026-09-10 · rubric v0.20.0
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How we profile Chainguard
Each block below is one kind of artifact we hold for Chainguard. 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 6
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.
Chainguard API v2
Chainguard API v2 is the current REST API for the Chainguard platform. Endpoints cover Identity and Access Management (IAM), image registry operations, and vulnerability data un...
Chainguard API v1
Chainguard API v1 is the legacy REST API for the Chainguard platform, covering the same broad surface as v2 (IAM, registry, vulnerabilities) and remaining available for existing...
Chainguard Unified API Spec
The unified Chainguard API specification combines API v1 and v2 definitions in a single reference, useful for tool builders and readers who need a consolidated view of the platf...
Chainguard chainctl CLI
chainctl is the official command-line interface for the Chainguard platform. It provides commands for authentication, IAM, image management, registry operations, event subscript...
Chainguard Terraform Provider
The chainguard-dev/chainguard Terraform provider lets platform engineers provision and manage Chainguard resources (organizations, groups, identities, roles, subscriptions, and ...
Chainguard Images Registry (cgr.dev)
cgr.dev is the OCI-compliant distribution endpoint for Chainguard Images. Standard OCI and Docker tooling (docker pull, cosign verify, oras, crane, etc.) can authenticate with a...
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.
Chainguard Rate Limits
RATE LIMITSFinOps 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.
Chainguard Finops
FINOPSFeatures 26
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Hardened Images
Minimal Images
Distroless
Zero-Known-CVE
SBOMs
SLSA Attestations
Sigstore Signatures
Cosign Verification
Daily Rebuilds
Wolfi OS Base
OCI Registry
IAM
RBAC
Audit Logs
Event Subscriptions
Vulnerability Feed
Custom Assembly
FIPS Images
STIG Hardening
Libraries for Java
Libraries for Python
Libraries for Go
Libraries for Node.js
Terraform Provider
CLI (chainctl)
REST API
Scroll within the panel for all 26 ·
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Use Cases 11
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
Software Supply Chain Security
Container Hardening
CVE Remediation
Compliance (FedRAMP, FIPS, PCI, HIPAA)
Open Source Dependency Security
Secure Base Images
Air-Gapped Distribution
Kubernetes Workload Security
CI/CD Integration
Image Signing and Verification
Vulnerability Scanning Reduction
Scroll within the panel for all 11 ·
Resources
Every other property we hold for Chainguard — 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 3
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 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Learn 2
Tutorials, courses, talks, and written guidance
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 2
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/chainguard · machine-readable index on apis.io
This is an independent, third-party profile of Chainguard, 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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you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.