Chromatic
Chromatic is a cloud visual testing and UI review platform built by the maintainers of Storybook. It captures snapshots of components and pages across cloud browsers, then compares each new snapshot to a stored baseline to catch visual regressions in appearance, layout, fonts, and color. Chromatic runs visual tests, interaction tests, and accessibility (axe) tests against Storybook, Playwright, and Cypress, with UI Review, TurboSnap change detection, and Git/CI integration. Its primary developer surface is the Chromatic CLI, which uploads builds and drives testing over a documented public GraphQL API at index.chromatic.com used by the CLI and the Storybook Visual Tests addon.
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 Chromatic the way a machine reads it — 9 machine-readable artifacts across 4 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 — Chromatic scores 24.9/100 (emerging), with a separate agent-readiness read of 7/100 (human only). 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.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Chromatic
Each block below is one kind of artifact we hold for Chromatic. 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 4
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.
Chromatic Builds API
Query builds produced by the Chromatic CLI - the `build(id)` and `project.lastBuild(...)` GraphQL fields expose build number, status (IN_PROGRESS, PASSED, PENDING, ACCEPTED, DEN...
Chromatic Tests and Review API
Inspect and act on individual visual tests. A Test carries its status, result, baseline, and per-browser snapshot comparisons (TestComparison with base/head captures and pixel d...
Chromatic Projects and Accounts API
Resolve project and account context. The `project(id)` field returns the project name, enabled features (uiReview, uiTests), branch names, project token, and manage/web URLs; `a...
Chromatic Storybook and Stories API
Read the published Storybook and its structure. The `storybook(url)` query and the Story and Component node types expose the components and stories captured in a build, their CS...
Open Collections 1
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).
Chromatic Public GraphQL API
OPEN COLLECTIONGraphQL 1
Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.
GraphQL schemas published by this provider.
Chromatic GraphQL API
Chromatic is a cloud visual testing and UI review platform built by the maintainers
GRAPHQLPricing 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 six things the Kin Score reads for commercial clarity.
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.
Chromatic 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.
Chromatic Finops
FINOPSResources
Every other property we hold for Chromatic — 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.
Documentation 1
Reference material describing how the API behaves
Build 1
SDKs, sample code, and the tooling you integrate with
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
← All providers · Data indexed from github.com/api-evangelist/chromatic · machine-readable index on apis.io