Arthur AI

Arthur is an enterprise AI governance and observability platform for discovering, monitoring, evaluating, and governing AI and ML systems in production. The Arthur Platform API (internally "Arthur Scope", OpenAPI 3.1) exposes 213 operations across models, tasks, datasets, connectors, metrics, alerts, alert rules, policies, workspaces, projects, agents, and webhooks, secured with OAuth2 via Keycloak. Arthur also ships the open-source Arthur Engine (LLM guardrails plus ML evaluation), the arthur-bench LLM evaluation library, Python client SDKs, and an Agent Toolkit with a Claude Code integration for end-to-end tracing.

Arthur AI publishes 30 APIs on the APIs.io network, including Agents V1 API, Alert Rules V1 API, Alerts V1 API, and 27 more. Tagged areas include Company, Artificial Intelligence, AI Governance, AI Observability, and Machine-Learning.

The Arthur AI catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Arthur AI’s developer surface includes documentation, getting-started guide, engineering blog, pricing, support, authentication, changelog, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.9/100 developing ▬ flat Agent 32/100 agent ready saas Full breakdown ↓
scored 2026-08-30 · rubric v0.17.2

AccessSelf serve

1 APIs 1 MCP Servers

Company Artificial Intelligence AI Governance AI Observability Machine-Learning LLM Evaluation Model Monitoring MLOps Guardrails Agents

Kin Score

Kin Score How this is scored →
scored 2026-08-30 · rubric v0.17.2

Composite quality — 45.9/100 · developing

Contract Quality 15.3 / 25

Developer Ergonomics 10.1 / 20

Access Clarity 8.9 / 20

Operational Transparency 3.4 / 13

Contract Governance 0.5 / 12

Discoverability 7.6 / 10

Agent readiness — 32/100 · agent ready

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 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 6 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/arthur-ai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 30

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

Open Collections 31

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Scopes 1

OAuth scopes governing access to this provider's APIs.

Arthur Ai Scopes

191 scopes · authorizationCode

191 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

WellKnown

MCPServer

LLMsTxt

AgentSkill

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

Webhooks

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 3

Authentication, authorization, and security posture

Authentication

Authentication

OAuthScopes

OAuthScopes

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: arthur-ai
name: Arthur AI
description: Arthur is an enterprise AI governance and observability platform for discovering, monitoring, evaluating, and
  governing AI and ML systems in production. The Arthur Platform API (internally "Arthur Scope", OpenAPI 3.1) exposes 213
  operations across models, tasks, datasets, connectors, metrics, alerts, alert rules, policies, workspaces, projects, agents,
  and webhooks, secured with OAuth2 via Keycloak. Arthur also ships the open-source Arthur Engine (LLM guardrails plus ML
  evaluation), the arthur-bench LLM evaluation library, Python client SDKs, and an Agent Toolkit with a Claude Code integration
  for end-to-end tracing.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://platform.arthur.ai/favicon.png
url: https://raw.githubusercontent.com/api-evangelist/arthur-ai/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- homebrew
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Artificial Intelligence
- AI Governance
- AI Observability
- Machine-Learning
- LLM Evaluation
- Model Monitoring
- MLOps
- Guardrails
- Agents
tags_raw:
- Company
- AI
- AI Governance
- AI Observability
- Machine Learning
- LLM Evaluation
- Model Monitoring
- MLOps
- Guardrails
- Agents
apis:
- aid: arthur-ai:arthur-ai-agents-v1-api
  name: Arthur AI Agents V1 API
  description: The Agents V1 API from Arthur AI — 12 operation(s) for agents v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Agents V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-agents-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-alert-rules-v1-api
  name: Arthur AI Alert Rules V1 API
  description: The Alert Rules V1 API from Arthur AI — 5 operation(s) for alert rules v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Alert Rules V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-alert-rules-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-alerts-v1-api
  name: Arthur AI Alerts V1 API
  description: The Alerts V1 API from Arthur AI — 5 operation(s) for alerts v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Alerts V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-alerts-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-authorization-v1-api
  name: Arthur AI Authorization V1 API
  description: The Authorization V1 API from Arthur AI — 9 operation(s) for authorization v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Authorization V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-authorization-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-connector-schemas-v1-api
  name: Arthur AI Connector Schemas V1 API
  description: The Connector Schemas V1 API from Arthur AI — 2 operation(s) for connector schemas v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Connector Schemas V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-connector-schemas-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-connectors-v1-api
  name: Arthur AI Connectors V1 API
  description: The Connectors V1 API from Arthur AI — 4 operation(s) for connectors v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Connectors V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-connectors-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-custom-aggregation-tests-v1-api
  name: Arthur AI Custom Aggregation Tests V1 API
  description: The Custom Aggregation Tests V1 API from Arthur AI — 3 operation(s) for custom aggregation tests v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Custom Aggregation Tests V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-custom-aggregation-tests-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-custom-aggregations-v1-api
  name: Arthur AI Custom Aggregations V1 API
  description: The Custom Aggregations V1 API from Arthur AI — 3 operation(s) for custom aggregations v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Custom Aggregations V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-custom-aggregations-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-data-plane-associations-v1-api
  name: Arthur AI Data Plane Associations V1 API
  description: The Data Plane Associations V1 API from Arthur AI — 4 operation(s) for data plane associations v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Data Plane Associations V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-data-plane-associations-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-data-planes-v1-api
  name: Arthur AI Data Planes V1 API
  description: The Data Planes V1 API from Arthur AI — 4 operation(s) for data planes v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Data Planes V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-data-planes-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-data-retrieval-v1-api
  name: Arthur AI Data Retrieval V1 API
  description: The Data Retrieval V1 API from Arthur AI — 4 operation(s) for data retrieval v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Data Retrieval V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-data-retrieval-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-datasets-v1-api
  name: Arthur AI Datasets V1 API
  description: The Datasets V1 API from Arthur AI — 9 operation(s) for datasets v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Datasets V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-datasets-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-feature-flags-v1-api
  name: Arthur AI Feature Flags V1 API
  description: The Feature Flags V1 API from Arthur AI — 1 operation(s) for feature flags v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Feature Flags V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-feature-flags-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-groups-v1-api
  name: Arthur AI Groups V1 API
  description: The Groups V1 API from Arthur AI — 4 operation(s) for groups v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Groups V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-groups-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-health-api
  name: Arthur AI Health API
  description: The Health API from Arthur AI — 1 operation(s) for health.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-health-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-jobs-v1-api
  name: Arthur AI Jobs V1 API
  description: The Jobs V1 API from Arthur AI — 7 operation(s) for jobs v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Jobs V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-jobs-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-metric-functions-v1-api
  name: Arthur AI Metric Functions V1 API
  description: The Metric Functions V1 API from Arthur AI — 1 operation(s) for metric functions v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Metric Functions V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-metric-functions-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-metrics-v1-api
  name: Arthur AI Metrics V1 API
  description: The Metrics V1 API from Arthur AI — 3 operation(s) for metrics v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Metrics V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-metrics-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-models-v1-api
  name: Arthur AI Models V1 API
  description: The Models V1 API from Arthur AI — 7 operation(s) for models v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Models V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-models-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-oauth-v1-api
  name: Arthur AI OAuth V1 API
  description: The OAuth V1 API from Arthur AI — 1 operation(s) for oauth v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - OAuth V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-oauth-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-organizations-v1-api
  name: Arthur AI Organizations V1 API
  description: The Organizations V1 API from Arthur AI — 1 operation(s) for organizations v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Organizations V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-organizations-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-policies-v1-api
  name: Arthur AI Policies V1 API
  description: The Policies V1 API from Arthur AI — 22 operation(s) for policies v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Policies V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-policies-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-projects-v1-api
  name: Arthur AI Projects V1 API
  description: The Projects V1 API from Arthur AI — 2 operation(s) for projects v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Projects V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-projects-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-registration-v1-api
  name: Arthur AI Registration V1 API
  description: The Registration V1 API from Arthur AI — 1 operation(s) for registration v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Registration V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-registration-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-roles-v1-api
  name: Arthur AI Roles V1 API
  description: The Roles V1 API from Arthur AI — 1 operation(s) for roles v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Roles V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-roles-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-tasks-v1-api
  name: Arthur AI Tasks V1 API
  description: The Tasks V1 API from Arthur AI — 7 operation(s) for tasks v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Tasks V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-tasks-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-upsolve-v1-api
  name: Arthur AI Upsolve V1 API
  description: The Upsolve V1 API from Arthur AI — 1 operation(s) for upsolve v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Upsolve V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-upsolve-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-users-v1-api
  name: Arthur AI Users V1 API
  description: The Users V1 API from Arthur AI — 8 operation(s) for users v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Users V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-users-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-webhooks-v1-api
  name: Arthur AI Webhooks V1 API
  description: The Webhooks V1 API from Arthur AI — 3 operation(s) for webhooks v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Webhooks V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-webhooks-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
- aid: arthur-ai:arthur-ai-workspaces-v1-api
  name: Arthur AI Workspaces V1 API
  description: The Workspaces V1 API from Arthur AI — 3 operation(s) for workspaces v1.
  humanURL: https://docs.arthur.ai
  baseURL: https://platform.arthur.ai/api
  tags:
  - Workspaces V1
  properties:
  - type: OpenAPI
    url: openapi/arthur-ai-workspaces-v1-api-openapi.yml
  - type: APIReference
    url: https://platform.arthur.ai/api/docs
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.arthur.ai
- type: Documentation
  url: https://docs.arthur.ai
- type: DeveloperPortal
  url: https://docs.arthur.ai
- type: GettingStarted
  url: https://docs.arthur.ai/docs/getting-started
- type: Blog
  url: https://www.arthur.ai/blog
- type: GitHubOrganization
  url: https://github.com/arthur-ai
- type: Pricing
  url: https://www.arthur.ai/pricing
- type: Login
  url: https://engine.platform.arthur.ai/welcome
- type: TermsOfService
  url: https://www.arthur.ai/terms
- type: PrivacyPolicy
  url: https://www.arthur.ai/privacy
- type: Support
  url: https://discord.gg/ZuJuZJucyG
- type: Authentication
  url: authentication/arthur-ai-authentication.yml
- type: OAuthScopes
  url: scopes/arthur-ai-scopes.yml
- type: DomainSecurity
  url: security/arthur-ai-domain-security.yml
- type: Packages
  url: packages/arthur-ai-packages.yml
- type: SDKs
  url: packages/arthur-ai-packages.yml
- type: WellKnown
  url: well-known/arthur-ai-well-known.yml
- type: MCPServer
  url: mcp/arthur-ai-mcp.yml
- type: LLMsTxt
  url: llms/arthur-ai-llms.txt
- type: Overlay
  url: overlays/arthur-ai-platform-overlay.yaml
- type: Conformance
  url: conformance/arthur-ai-conformance.yml
- type: ErrorCatalog
  url: errors/arthur-ai-problem-types.yml
- type: Lifecycle
  url: lifecycle/arthur-ai-lifecycle.yml
- type: Conventions
  url: conventions/arthur-ai-conventions.yml
- type: ChangeLog
  url: changelog/arthur-ai-changelog.yml
- type: ChangeLog
  url: https://docs.arthur.ai/changelog
- type: DataModel
  url: data-model/arthur-ai-data-model.yml
- type: Webhooks
  url: asyncapi/arthur-ai-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

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