Builder.io
Builder.io is a visual development platform and headless CMS that enables teams to build, test, and optimize digital experiences without requiring constant developer involvement. The platform combines an AI-powered visual editor with a suite of APIs including REST Content, GraphQL, Write, Upload, Image, Assets, and Admin APIs for managing and delivering content at scale. Builder.io supports A/B testing, personalization, and targeting, making it suitable for marketing and product teams working across web and mobile channels. It integrates natively with React, Vue, Svelte, Qwik, Angular, and other frameworks through official SDKs, and connects to Git-based workflows via GitHub, GitLab, and Bitbucket.
Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.
API Evangelist profiles Builder.io the way a machine reads it — 17 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 — Builder.io scores 58.8/100 (developing), with a separate agent-readiness read of 48/100 (agent ready). 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 Builder.io
Each block below is one kind of artifact we hold for Builder.io. 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.
Builder.io Content API
REST API for retrieving published content from Builder.io models. Supports filtering via MongoDB-style queries, targeting by user attributes, locale, and URL path. Returns pagin...
Builder.io GraphQL Content API
GraphQL API for querying Builder.io content models with type-safe schemas. Supports GET and POST requests, model-level queries with pagination, and targeting via user attributes...
Builder.io Admin GraphQL API
Private GraphQL API for back-end servers and trusted integrations. Enables space management, user access control, SSO configuration (SAML/OIDC), webhook setup, model and folder ...
Builder.io Write API
API for programmatically creating, updating, and deleting content entries in Builder.io. Intended for server-side automation and content migration workflows that need to manage ...
Builder.io Upload API
API for programmatically uploading files such as images and videos to Builder.io. Supports automation of asset ingestion pipelines and bulk media management workflows.
Builder.io Image API
API for accessing and downloading optimized versions of images uploaded to Builder.io. Supports on-the-fly image transformation and CDN-optimized delivery for web performance us...
GraphQL 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.
Builder.io GraphQL API
Builder.io exposes a public GraphQL Content API that enables type-safe queries against your Builder.io space's content models. The API is schema-driven: every content model defi...
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.
Builder Io 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.
Builder Io Finops
FINOPSSemantic Vocabularies 1
JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.
JSON-LD contexts and semantic vocabularies used across these APIs.
Builder Io Context
JSON-LDSpectral Rules 1
Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.
Builder.io API Rules
SPECTRALJSON Schema 1
Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.
Standalone JSON Schema definitions for this provider's data models.
BuilderContentEntry
JSON SCHEMAExamples 1
Real request and response payloads are what turn a spec from abstract into obvious — and they're one of the twelve things an agent needs to call an API correctly on the first try.
Example request and response payloads for these APIs.
Security Posture 2
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.
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.
Resources
Every other property we hold for Builder.io — 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
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
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 1
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/builder-io · machine-readable index on apis.io