CrawlGraph

CrawlGraph is a backlink-intelligence SaaS built on Common Crawl's open hyperlink graph (121.1M domains / 3.90B domain-level links), positioned as a low-cost alternative to Ahrefs, Moz, Semrush and Majestic. It offers referring-domain lookups with authority scoring, competitor gap analysis, warm outreach-target discovery, and cross-release change comparison. The product ships an unusually complete developer surface for a solo-operator SaaS: a public OpenAPI 3.1 contract, a self-serve free API tier (15 backlink calls a month, no card), a hosted remote MCP server whose tools publish both input and output schemas, an open-source local MCP package on npm, a published llms.txt, and open CC-BY study datasets. It is operated by Search Engine Wizards in Finland and priced as a one-time $99 lifetime licence rather than a subscription.

CrawlGraph publishes 1 API on the APIs.io network: REST API v1. Tagged areas include SEO, backlink-intelligence, martech, competitive-intelligence, and web-data.

CrawlGraph’s developer surface includes documentation, API reference, getting-started guide, engineering blog, authentication, and 24 more developer resources.

🌐 Visit website 📡 Source on GitHub

57.2/100 strong ▲ 50.9 Agent 54/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0

AccessFreemiumSelf serveFree trial⚡ Free to try

2 APIs 1 MCP Servers

SEObacklink-intelligencemartechcompetitive-intelligenceweb-dataCommon-Crawllink-buildingdeveloper-toolsAPIMCP

Kin Score

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

Composite quality — 57.2/100 · strong

Contract Quality 14.8 / 25

Developer Ergonomics 12.6 / 20

Commercial Clarity 13.2 / 20

Operational Transparency 5.5 / 13

Governance 2.5 / 12

Discoverability 8.7 / 10

Agent readiness — 54/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 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 3 / 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/crawlgraph: 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.

MCP Servers 1

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

Rate Limits 1

Documented rate limits and quota policies.

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

OpenAPI

OpenAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

MCPServer

AgentSkill

LLMsTxt

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Lifecycle

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SourceCode

SourceCode

ToolCrosswalk

ToolCrosswalk

Packages

Packages

Access & Security 5

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

Security

Security

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 1

The organization behind the API

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: true
  label: Free tier · Self-serve signup · $99 lifetime
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  generated: '2026-08-13'
  method: searched
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/crawlgraph.png
name: CrawlGraph
description: 'CrawlGraph is a backlink-intelligence SaaS built on Common Crawl''s open hyperlink graph (121.1M domains / 3.90B
  domain-level links), positioned as a low-cost alternative to Ahrefs, Moz, Semrush and Majestic. It offers referring-domain
  lookups with authority scoring, competitor gap analysis, warm outreach-target discovery, and cross-release change comparison.
  The product ships an unusually complete developer surface for a solo-operator SaaS: a public OpenAPI 3.1 contract, a self-serve
  free API tier (15 backlink calls a month, no card), a hosted remote MCP server whose tools publish both input and output
  schemas, an open-source local MCP package on npm, a published llms.txt, and open CC-BY study datasets. It is operated by
  Search Engine Wizards in Finland and priced as a one-time $99 lifetime licence rather than a subscription.'
url: https://crawlgraph.apievangelist.com/apis.yml
created: '2026-07-03'
modified: '2026-08-13'
specificationVersion: '0.21'
tags:
- SEO
- backlink-intelligence
- martech
- competitive-intelligence
- web-data
- Common-Crawl
- link-building
- developer-tools
- API
- MCP
apis:
- name: CrawlGraph REST API v1
  description: JSON REST API for backlink/referring-domain lookups with authority scoring, indexed Common Crawl release listing,
    async competitor gap analysis, and cross-release change comparison. Six operations under /api/v1, described by a live
    OpenAPI 3.1.0 contract served anonymously at https://crawlgraph.com/api/v1/openapi.json. Bearer auth with cg_live_ keys.
    A free self-serve tier (15 backlink calls/month, emailed key, no card) is available; gap analysis and the 1,000-call allowance
    require the $99 lifetime tier.
  humanURL: https://crawlgraph.com/docs/api
  baseURL: https://crawlgraph.com/api/v1/
  tags:
  - SEO
  - backlink-intelligence
  - martech
  - competitive-intelligence
  - web-data
  - Common-Crawl
  - link-building
  - developer-tools
  - API
  properties:
  - type: Documentation
    url: https://crawlgraph.com/docs/api
  - type: APIReference
    url: https://crawlgraph.com/docs/api
  - type: OpenAPI
    url: openapi/crawlgraph-v1-openapi.yml
  - type: Overlay
    url: overlays/crawlgraph-v1-overlay.yaml
  - type: Authentication
    url: authentication/crawlgraph-authentication.yml
  - type: Conventions
    url: conventions/crawlgraph-conventions.yml
  - type: ErrorCatalog
    url: errors/crawlgraph-problem-types.yml
  - type: DataModel
    url: data-model/crawlgraph-data-model.yml
  - type: RateLimits
    url: rate-limits/crawlgraph-rate-limits.yml
  - type: LLMSTxt
    url: https://crawlgraph.com/llms.txt
- name: CrawlGraph MCP Server
  description: 'Hosted remote Model Context Protocol server at https://crawlgraph.com/mcp over Streamable HTTP, plus an open-source
    local stdio fallback published to npm as crawlgraph-mcp (MIT). Four tools — backlinks, gap_analysis, gap_outreach_targets,
    releases — each publishing a JSON Schema inputSchema AND outputSchema with behavioural annotations. tools/list answers
    anonymously; tool invocation uses the same cg_live_ bearer key and the same monthly quotas as the REST API. The gap_outreach_targets
    tool is MCP-value-added: it orchestrates the async gap job, tiers results by competitor overlap, filters platform/CDN
    noise, and authority-scores the top targets.'
  humanURL: https://crawlgraph.com/docs/api
  baseURL: https://crawlgraph.com/mcp
  tags:
  - MCP
  - agents
  - SEO
  - backlink-intelligence
  - developer-tools
  properties:
  - type: MCPServer
    url: mcp/crawlgraph-mcp.yml
  - type: ToolCrosswalk
    url: mcp/crawlgraph-tool-crosswalk.yml
  - type: Documentation
    url: https://crawlgraph.com/docs/api
  - type: SourceCode
    url: https://github.com/pucilpet/crawlgraph-mcp
maintainers:
- FN: Petteri Pucilowski (pucilpet)
  email: petteri@searchenginewizards.fi
  url: https://github.com/pucilpet
  organization: Search Engine Wizards
generated:
  by: apis.io/add
  model: claude-opus-4-8
  confidence: 85
  at: '2026-07-03T11:50:54.356Z'
common:
- type: DeveloperPortal
  url: https://crawlgraph.com/docs/api
- type: Documentation
  url: https://crawlgraph.com/docs/api
- type: APIReference
  url: https://crawlgraph.com/docs/api
- type: GettingStarted
  url: https://crawlgraph.com/docs/api
- type: Blog
  url: https://crawlgraph.com/blog
- type: SourceCode
  url: https://github.com/pucilpet/crawlgraph-mcp
- type: Login
  url: https://crawlgraph.com/login
- type: TermsOfService
  url: https://crawlgraph.com/terms
- type: PrivacyPolicy
  url: https://crawlgraph.com/privacy
- type: OpenAPI
  url: openapi/crawlgraph-v1-openapi.yml
- type: MCPServer
  url: mcp/crawlgraph-mcp.yml
- type: ToolCrosswalk
  url: mcp/crawlgraph-tool-crosswalk.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/crawlgraph-llms.txt
- type: WellKnown
  url: well-known/crawlgraph-well-known.yml
- type: SecurityTxt
  url: well-known/crawlgraph-security.txt
- type: Security
  url: security/crawlgraph-vulnerability-disclosure.yml
- type: VulnerabilityDisclosure
  url: security/crawlgraph-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/crawlgraph-domain-security.yml
- type: Authentication
  url: authentication/crawlgraph-authentication.yml
- type: Conventions
  url: conventions/crawlgraph-conventions.yml
- type: ErrorCatalog
  url: errors/crawlgraph-problem-types.yml
- type: DataModel
  url: data-model/crawlgraph-data-model.yml
- type: RateLimits
  url: rate-limits/crawlgraph-rate-limits.yml
- type: Plans
  url: plans/crawlgraph-plans-pricing.yml
- type: Lifecycle
  url: lifecycle/crawlgraph-lifecycle.yml
- type: Conformance
  url: conformance/crawlgraph-conformance.yml
- type: Packages
  url: packages/crawlgraph-packages.yml
- type: Overlay
  url: overlays/crawlgraph-v1-overlay.yaml
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 25
  pass: local-v1
x-coverage:
  state: covered

CrawlGraph

Kin Score

APIs 2

CrawlGraph REST API v1

CrawlGraph MCP Server

Open Collections 1

CrawlGraph

MCP Servers 1

crawlgraph-mcp.yml

Pricing Plans 1

Crawlgraph Plans Pricing

Rate Limits 1

Crawlgraph Rate Limits

Security Posture 3

Crawlgraph Authentication

Crawlgraph Domain Security

Crawlgraph Vulnerability Disclosure

Resources

Get Started 3

Documentation 3

Agent Surfaces 4

Design & Contract 5

Build 3

Access & Security 5

Operate 1

Commercial 3

Company 1

Other 1

Source (apis.yml)