Attio
Attio is a modern, flexible, and data-driven customer relationship management (CRM) platform that lets revenue teams build a CRM around their unique data model with customizable objects, attributes, lists, and workflows. Attio syncs contacts and companies from email and calendar, enriches them with data, and powers reporting, sequences, and automations. The Attio REST API exposes full CRUD access to records, lists, objects, attributes, tasks, notes, threads, comments, and webhooks using Bearer token authentication and a public OpenAPI specification.
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 Attio the way a machine reads it — 43 machine-readable artifacts across 16 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 — Attio scores 43.3/100 (developing), with a separate agent-readiness read of 32/100 (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.
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
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title="Attio on API Evangelist — API profile and Kin Score">
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</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Attio
Each block below is one kind of artifact we hold for Attio. 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 16
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.
Attio Attributes API
The Attributes API from Attio — 2 operation(s) for attributes.
Attio Call Recordings API
The Call Recordings API from Attio — 1 operation(s) for call recordings.
Attio Comments API
The Comments API from Attio — 2 operation(s) for comments.
Attio Entries API
The Entries API from Attio — 1 operation(s) for entries.
Attio Files API
The Files API from Attio — 1 operation(s) for files.
Attio Lists API
The Lists API from Attio — 2 operation(s) for lists.
Attio Meetings API
The Meetings API from Attio — 2 operation(s) for meetings.
Attio Meta API
The Meta API from Attio — 1 operation(s) for meta.
Attio Notes API
The Notes API from Attio — 1 operation(s) for notes.
Attio OAuth API
The OAuth API from Attio — 2 operation(s) for oauth.
Attio Objects API
The Objects API from Attio — 2 operation(s) for objects.
Attio Records API
The Records API from Attio — 3 operation(s) for records.
Attio Tasks API
The Tasks API from Attio — 1 operation(s) for tasks.
Attio Threads API
The Threads API from Attio — 1 operation(s) for threads.
Attio Webhooks API
The Webhooks API from Attio — 2 operation(s) for webhooks.
Attio Workspace Members API
The Workspace Members API from Attio — 2 operation(s) for workspace members.
Scroll within the panel for all 16 ·
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).
API Collection
OPEN COLLECTIONAttio REST Attributes API
OPEN COLLECTIONAttio REST Attributes Call Recordings API
OPEN COLLECTIONAttio REST API
OPEN COLLECTIONAttio REST Attributes Comments API
OPEN COLLECTIONAttio REST Attributes Entries API
OPEN COLLECTIONAttio REST Attributes Files API
OPEN COLLECTIONAttio REST Attributes List Entries API
OPEN COLLECTIONAttio REST Attributes Lists API
OPEN COLLECTIONAttio REST Attributes Meetings API
OPEN COLLECTIONAttio REST Attributes Meta API
OPEN COLLECTIONAttio REST Attributes Notes API
OPEN COLLECTIONAttio REST Attributes OAuth API
OPEN COLLECTIONAttio REST Attributes Objects API
OPEN COLLECTIONAttio REST Attributes Records API
OPEN COLLECTIONAttio REST Attributes Tasks API
OPEN COLLECTIONAttio REST Attributes Threads API
OPEN COLLECTIONAttio REST Attributes Webhooks API
OPEN COLLECTIONAttio REST Attributes Workspace Members API
OPEN COLLECTIONAttio REST API
OPEN COLLECTIONScroll 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 six things the Kin Score reads for commercial clarity.
Published pricing tiers and plan structures.
Attio Plans Pricing
PLANSRate 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.
Attio 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.
Attio Finops
FINOPSSecurity 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.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
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 Attio — 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 1
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 3
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/attio · machine-readable index on apis.io
This is an independent, third-party profile of Attio, 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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