Rank Science

RankScience (RankScience LLC) is a San Francisco based SEO and AI-visibility agency that turns search rankings into revenue for startups, SaaS companies, and enterprises. Refined over 15+ years, its practice spans foundational and technical SEO, on-page and local SEO, strategic link building, and content strategy, plus a next-generation AI-visibility line covering generative engine optimization (GEO), large language model optimization, and answer engine optimization for platforms like ChatGPT, Claude, and Perplexity. It serves technology, healthcare, legal, and specialized verticals with revenue-focused reporting. Surfaced as a 500 Global portfolio company and added to the API Evangelist network; RankScience is an agency and publishes no public API, though it does publish an llms.txt for AI-agent discovery.

Rank Science is profiled on the APIs.io network. Tagged areas include Company, SEO, AI Visibility, Generative Engine Optimization, and Content Marketing.

Rank Science’s developer surface includes engineering blog, support, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

12.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

CompanySEOAI VisibilityGenerative Engine OptimizationContent MarketingAgencyMarketing

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 12.3/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 1.3 / 20

Commercial Clarity 4.2 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

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/rank-science: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: rank-science
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/rank-science.png
name: Rank Science
description: RankScience (RankScience LLC) is a San Francisco based SEO and AI-visibility agency that turns search rankings
  into revenue for startups, SaaS companies, and enterprises. Refined over 15+ years, its practice spans foundational and
  technical SEO, on-page and local SEO, strategic link building, and content strategy, plus a next-generation AI-visibility
  line covering generative engine optimization (GEO), large language model optimization, and answer engine optimization for
  platforms like ChatGPT, Claude, and Perplexity. It serves technology, healthcare, legal, and specialized verticals with
  revenue-focused reporting. Surfaced as a 500 Global portfolio company and added to the API Evangelist network; RankScience
  is an agency and publishes no public API, though it does publish an llms.txt for AI-agent discovery.
url: https://raw.githubusercontent.com/api-evangelist/rank-science/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- SEO
- AI Visibility
- Generative Engine Optimization
- Content Marketing
- Agency
- Marketing
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.rankscience.com
- type: Blog
  url: https://www.rankscience.com/blog
- type: Support
  url: https://www.rankscience.com/contact-us
- type: PrivacyPolicy
  url: https://www.rankscience.com/privacy
- type: TermsOfService
  url: https://www.rankscience.com/terms-of-use
- type: LLMsTxt
  url: llms/rank-science-llms.txt
- type: DomainSecurity
  url: security/rank-science-domain-security.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 2
  pass: local-v1