Karat website screenshot

Karat

Karat Inc. is a Seattle-based technical interviewing platform that conducts standardized software engineering interviews for enterprise hiring teams through its community of trained Interview Engineers. Karat exposes a GraphQL API, hosted per-customer at https://{subdomain}.karat.io/api/v1/graphql, that lets talent and ATS systems programmatically manage roles and groups, look up users, invite candidates into assessments, retrieve candidacy statuses, code-challenge and interview results, and bulk-update candidacy dispositions. The API uses Bearer token authentication, Relay-style cursor pagination, and ships an example Python SDK and a Postman collection. Karat is SOC 2 Type II certified and certified under the EU-US, UK-US and Swiss-US Data Privacy Frameworks.

Karat publishes 1 API on the APIs.io network. Tagged areas include Company, Technical Interviewing, Hiring, Recruiting, and Talent Assessment.

Karat’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, authentication, sandbox, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub
34.8/100 thin ▬ flat Agent 16/100 agent aware Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-09-19 · rubric v0.22.0
1 APIs
CompanyTechnical InterviewingHiringRecruitingTalent AssessmentEngineeringGraphQL

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-19 · rubric v0.22.0
Composite quality — 34.8/100 · thin
Contract Quality 8.0 / 25
Developer Ergonomics 10.4 / 20
Access Clarity 6.3 / 20
Operational Transparency 0.3 / 13
Contract Governance 2.2 / 12
Discoverability 7.6 / 10
Agent readiness — 16/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/karat: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Karat GraphQL API

Karat's GraphQL API for managing technical-interview hiring workflows: query candidacies, roles, groups and users; invite candidates into assessments; and bulk-update candidacy ...

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Karat Authentication

http · 1 scheme

SECURITY

Karat Domain Security

TLSv1.3 · DMARC

SECURITY

Karat Trust Center

SOC 2 Type II, EU-US Data Privacy Framework, UK-US Data Privacy Framework, Swiss-US Data Privacy Framework

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted
 Sandbox
Sandbox

Documentation 4

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 GraphQL
GraphQL
 GraphQLOperations
GraphQLOperations

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 X-MCPServerCandidate
X-MCPServerCandidate
 AgentSkill
AgentSkill
 LLMsTxt
LLMsTxt

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 DataModel
DataModel
 Conformance
Conformance
 Lifecycle
Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

Postman
Postman
 GitHubOrganization
GitHubOrganization
 SDKs
SDKs
 Packages
Packages

Access & Security 4

Authentication, authorization, and security posture

Compliance
Compliance
 Authentication
Authentication
 TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: karat
name: Karat
description: Karat Inc. is a Seattle-based technical interviewing platform that conducts standardized software engineering
  interviews for enterprise hiring teams through its community of trained Interview Engineers. Karat exposes a GraphQL API,
  hosted per-customer at https://{subdomain}.karat.io/api/v1/graphql, that lets talent and ATS systems programmatically manage
  roles and groups, look up users, invite candidates into assessments, retrieve candidacy statuses, code-challenge and interview
  results, and bulk-update candidacy dispositions. The API uses Bearer token authentication, Relay-style cursor pagination,
  and ships an example Python SDK and a Postman collection. Karat is SOC 2 Type II certified and certified under the EU-US,
  UK-US and Swiss-US Data Privacy Frameworks.
url: https://raw.githubusercontent.com/api-evangelist/karat/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- norwest-venture-partners
- union-square-ventures
x-tier: enriched
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-09-03'
  method: derived
image: https://karat.com/wp-content/themes/karat/assets/img/png/logo.png
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Technical Interviewing
- Hiring
- Recruiting
- Talent Assessment
- Engineering
- GraphQL
tags_raw:
- Company
- Technical Interviewing
- Hiring
- Recruiting
- Talent Assessment
- Engineering
- GraphQL
- API
apis:
- name: Karat GraphQL API
  description: 'Karat''s GraphQL API for managing technical-interview hiring workflows: query candidacies, roles, groups and
    users; invite candidates into assessments; and bulk-update candidacy dispositions. Hosted per-customer on a tenant subdomain.'
  humanURL: https://karat.slab.com/posts/karat-api-documentation-dezzam7y
  baseURL: https://{subdomain}.karat.io/api/v1/graphql
  tags:
  - GraphQL
  - Hiring
  - Interviewing
  properties:
  - type: Documentation
    url: https://karat.slab.com/posts/karat-api-documentation-dezzam7y
  - type: APIReference
    url: https://karat.slab.com/posts/karat-api-overview-6l4gprc3
  - type: GraphQL
    url: https://github.com/karat/api-docs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://karat.com
- type: Documentation
  url: https://karat.slab.com/posts/karat-api-documentation-dezzam7y
- type: APIReference
  url: https://karat.slab.com/posts/karat-api-overview-6l4gprc3
- type: GettingStarted
  url: https://github.com/karat/api-sdk#installation
- type: GraphQL
  url: https://github.com/karat/api-docs
- type: Postman
  url: https://github.com/karat/api-docs/tree/main/Postman
- type: GitHubOrganization
  url: https://github.com/karat
- type: Blog
  url: https://karat.com/blog/
- type: Support
  url: https://karat.com/contact-us/
- type: TermsOfService
  url: https://karat.com/terms-of-service/
- type: PrivacyPolicy
  url: https://karat.com/privacy/
- type: Compliance
  url: https://karat.com/customer-faq/
- type: SDKs
  url: packages/karat-packages.yml
- type: Packages
  url: packages/karat-packages.yml
- type: Authentication
  url: authentication/karat-authentication.yml
- type: Conventions
  url: conventions/karat-conventions.yml
- type: DataModel
  url: data-model/karat-data-model.yml
- type: Conformance
  url: conformance/karat-conformance.yml
- type: Lifecycle
  url: lifecycle/karat-lifecycle.yml
- type: Sandbox
  url: sandbox/karat-sandbox.yml
- type: WellKnown
  url: well-known/karat-well-known.yml
- type: TrustCenter
  url: security/karat-trust-center.yml
- type: DomainSecurity
  url: security/karat-domain-security.yml
- type: X-MCPServerCandidate
  url: mcp/karat-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/karat-llms.txt
- type: GraphQLOperations
  url: graphql/karat-operations.graphql
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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