Ahrefs

Ahrefs is a Singapore-based SEO and marketing intelligence platform built on its own web crawler and index, offering Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, SERP Overview, Brand Radar, Web Analytics and Social Media Management. The Ahrefs API v3 exposes that data set as a REST API at https://api.ahrefs.com/v3 with 148 operations across 13 tools, documented by a single OpenAPI 3.2.0 specification plus one machine-readable spec per tool. Access is metered in API units with a 50-unit request floor, authenticated with a bearer API key, and additionally reachable through a hosted MCP server and the OAuth-based Ahrefs Connect partner program.

Ahrefs publishes 1 API on the APIs.io network: API v3. Tagged areas include Company, SEO, Marketing, Search, and Analytics.

Ahrefs’ developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

58.5/100 strong ▬ flat Agent 33/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0

2 APIs 1 MCP Servers

CompanySEOMarketingSearchAnalyticsBacklinksKeywordsWeb AnalyticsRank TrackingSite AuditBrand MonitoringSocial Media

Kin Score

Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0

Composite quality — 58.5/100 · strong

Contract Quality 8.1 / 25

Developer Ergonomics 14.3 / 20

Commercial Clarity 18.4 / 20

Operational Transparency 6.5 / 13

Governance 2.5 / 12

Discoverability 8.7 / 10

Agent readiness — 33/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

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 7 / 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

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/ahrefs: 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 2

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

Ahrefs API v3

REST API over the Ahrefs data set — Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, SERP Overview, Batch Analysis, Brand Radar, Web Analytics, GSC Insights, Social M...

Ahrefs MCP Server

Ahrefs' hosted, remote Model Context Protocol server, which lets AI agents query the Ahrefs API on behalf of a signed-in Ahrefs account. Streamable HTTP transport, OAuth 2.0 wit...

Open Collections 13

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

MCP Servers 1

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

Rate Limits 1

Documented rate limits and quota policies.

Scopes 1

OAuth scopes governing access to this provider's APIs.

Ahrefs Scopes

2 scopes · authorizationCode

2 scopes

SCOPES

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance

Lifecycle

Conventions

Components

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 5

Authentication, authorization, and security posture

Authentication

OAuthScopes

Compliance

TrustCenter

DomainSecurity

Operate 4

Status, limits, changes, and where to get help

Support

ChangeLog

RateLimits

Deprecation

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: ahrefs
name: Ahrefs
description: Ahrefs is a Singapore-based SEO and marketing intelligence platform built on its own web crawler and index, offering
  Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, SERP Overview, Brand Radar, Web Analytics and Social Media Management.
  The Ahrefs API v3 exposes that data set as a REST API at https://api.ahrefs.com/v3 with 148 operations across 13 tools,
  documented by a single OpenAPI 3.2.0 specification plus one machine-readable spec per tool. Access is metered in API units
  with a 50-unit request floor, authenticated with a bearer API key, and additionally reachable through a hosted MCP server
  and the OAuth-based Ahrefs Connect partner program.
url: https://raw.githubusercontent.com/api-evangelist/ahrefs/refs/heads/main/apis.yml
image: https://static.ahrefs.com/assets/img/og/ahrefs.png?v=2
x-type: company
x-source: harvest:marketing-integration-graph
x-tier: full
x-tier-reason: enrichment-pass-found-openapi-and-mcp
specificationVersion: '0.20'
created: '2026-08-12'
modified: '2026-08-12'
tags:
- Company
- SEO
- Marketing
- Search
- Analytics
- Backlinks
- Keywords
- Web Analytics
- Rank Tracking
- Site Audit
- Brand Monitoring
- Social Media
apis:
- aid: ahrefs:api-v3
  name: Ahrefs API v3
  description: REST API over the Ahrefs data set — Site Explorer, Keywords Explorer, Site Audit, Rank Tracker, SERP Overview,
    Batch Analysis, Brand Radar, Web Analytics, GSC Insights, Social Media Management, Management, Subscription Information
    and free Public endpoints. 148 operations, bearer API key auth, JSON or XML responses, metered in API units.
  humanURL: https://docs.ahrefs.com/docs/api/reference/introduction
  baseURL: https://api.ahrefs.com/v3
  tags:
  - SEO
  - Backlinks
  - Keywords
  - Analytics
  properties:
  - type: OpenAPI
    url: openapi/_original/ahrefs-openapi-original.json
  - type: OpenAPI
    url: openapi/ahrefs-site-explorer-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-keywords-explorer-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-site-audit-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-rank-tracker-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-serp-overview-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-batch-analysis-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-subscription-info-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-management-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-brand-radar-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-web-analytics-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-gsc-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-social-media-openapi.json
  - type: OpenAPI
    url: openapi/ahrefs-public-openapi.json
  - type: Documentation
    url: https://docs.ahrefs.com/docs/api/reference/introduction
  - type: APIReference
    url: https://docs.ahrefs.com/en/api/reference/site-explorer
  - type: Overlay
    url: overlays/ahrefs-api-v3-overlay.yaml
  - type: ErrorCatalog
    url: errors/ahrefs-problem-types.yml
  - type: DataModel
    url: data-model/ahrefs-data-model.yml
- aid: ahrefs:mcp
  name: Ahrefs MCP Server
  description: Ahrefs' hosted, remote Model Context Protocol server, which lets AI agents query the Ahrefs API on behalf of
    a signed-in Ahrefs account. Streamable HTTP transport, OAuth 2.0 with PKCE (scope apiv3-mcp), tool groups selectable via
    a tools query parameter. Available on Lite plans and above; requests consume the account's API units.
  humanURL: https://docs.ahrefs.com/mcp/docs/introduction
  baseURL: https://api.ahrefs.com/mcp/mcp
  tags:
  - MCP
  - Agents
  properties:
  - type: MCPServer
    url: mcp/ahrefs-mcp.yml
  - type: ToolCrosswalk
    url: mcp/ahrefs-tool-crosswalk.yml
  - type: Documentation
    url: https://docs.ahrefs.com/mcp/docs/introduction
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://ahrefs.com/
- type: DeveloperPortal
  url: https://docs.ahrefs.com/
- type: Documentation
  url: https://docs.ahrefs.com/docs/api/reference/introduction
- type: APIReference
  url: https://docs.ahrefs.com/en/api/reference/site-explorer
- type: GettingStarted
  url: https://docs.ahrefs.com/docs/api/reference/introduction
- type: Support
  url: https://help.ahrefs.com/en/
- type: Blog
  url: https://ahrefs.com/blog
- type: GitHubOrganization
  url: https://github.com/ahrefs
- type: Pricing
  url: https://ahrefs.com/pricing
- type: SignUp
  url: https://ahrefs.com/signup
- type: TermsOfService
  url: https://ahrefs.com/terms
- type: PrivacyPolicy
  url: https://ahrefs.com/privacy-policy
- type: ChangeLog
  url: changelog/ahrefs-changelog.yml
- type: Authentication
  url: authentication/ahrefs-authentication.yml
- type: OAuthScopes
  url: scopes/ahrefs-scopes.yml
- type: RateLimits
  url: rate-limits/ahrefs-rate-limits.yml
- type: Plans
  url: plans/ahrefs-plans-pricing.yml
- type: Packages
  url: packages/ahrefs-packages.yml
- type: SDKs
  url: packages/ahrefs-packages.yml
- type: WellKnown
  url: well-known/ahrefs-well-known.yml
- type: LLMsTxt
  url: llms/ahrefs-llms.txt
- type: Conformance
  url: conformance/ahrefs-conformance.yml
- type: Compliance
  url: https://trust.ahrefs.com/
- type: TrustCenter
  url: security/ahrefs-trust-center.yml
- type: DomainSecurity
  url: security/ahrefs-domain-security.yml
- type: Lifecycle
  url: lifecycle/ahrefs-lifecycle.yml
- type: Deprecation
  url: https://docs.ahrefs.com/ahrefs-connect/docs/legacy-developers
- type: Conventions
  url: conventions/ahrefs-conventions.yml
- type: Sandbox
  url: sandbox/ahrefs-sandbox.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Components
  url: components/ahrefs-components.yml
x-enrichment:
  date: '2026-08-12'
  status: enriched
  artifacts_added: 43
  pass: local-v1
x-coverage:
  state: covered
  reason: openapi-and-mcp-found
  detail: Ahrefs publishes a complete OpenAPI 3.2.0 (148 operations) plus 13 per-tool specs and a spec index on its DOCS host
    at https://docs.ahrefs.com/openapi.json; the API host api.ahrefs.com 404s on every spec path, so the contract is only
    found by probing the docs host.
  evidence:
  - url: https://docs.ahrefs.com/openapi.json
    status: 200
  - url: https://docs.ahrefs.com/llms.txt
    status: 200
  - url: https://api.ahrefs.com/.well-known/oauth-protected-resource
    status: 200
  - url: https://api.ahrefs.com/openapi.json
    status: 404
  checked: '2026-08-12'
x-vouched-by:
- Improvado
- Nexad
- Supermetrics
x-vouch-count: 3