RankParse

Agent-friendly SEO data API for backlinks, domain authority, tech stack, and on-page metadata. Designed as a low-cost alternative to enterprise SEO suites.

Capabilities

Authentication

• Type: API Key
• Header: X-API-Key: rp_...
• Get key: Sign up at https://rankparse.com and create a key in the dashboard
• Billing: Credit-based (one-time credit packs, no subscription). Each endpoint deducts a fixed number of credits per call.

Common Agent Operations

Domain authority

GET https://api.rankparse.com/v1/domain-authority?domain=example.com

X-API-Key: rp_...

Returns authority score, registered date, registrar, and popularity rank.

Backlinks

GET https://api.rankparse.com/v1/backlinks?domain=example.com&limit=100

X-API-Key: rp_...

Optional params: sort=importance|recent, from_domain=, link_type=, score=true.

Referring domains

GET https://api.rankparse.com/v1/referring-domains?domain=example.com&limit=100

X-API-Key: rp_...

Outbound links

GET https://api.rankparse.com/v1/outbound-links?domain=example.com&limit=100

X-API-Key: rp_...

Anchor text profile

GET https://api.rankparse.com/v1/anchor-text?domain=example.com&limit=100

X-API-Key: rp_...

Top pages

GET https://api.rankparse.com/v1/top-pages?domain=example.com&limit=50

X-API-Key: rp_...

Domain overlap

GET https://api.rankparse.com/v1/domain-overlap?domains=a.com,b.com,c.com

X-API-Key: rp_...

Compare 2–5 domains.

Link intersect

GET https://api.rankparse.com/v1/link-intersect?domain_a=a.com&domain_b=b.com

X-API-Key: rp_...

Domains that link to both targets.

Competitor gap

GET https://api.rankparse.com/v1/competitor-gap?domain=mysite.com&vs=competitor.com

X-API-Key: rp_...

Similar domains

GET https://api.rankparse.com/v1/similar-domains?domain=example.com

X-API-Key: rp_...

Tech stack

GET https://api.rankparse.com/v1/tech-stack?domain=example.com

X-API-Key: rp_...

Page SEO

GET https://api.rankparse.com/v1/page-seo?url=https://example.com/page

X-API-Key: rp_...

Returns title, meta description, OG tags, canonical, and structured metadata for a single URL.

Page performance

GET https://api.rankparse.com/v1/page-performance?url=https://example.com/page&strategy=mobile

X-API-Key: rp_...

Core Web Vitals via Google PageSpeed Insights. Daily quotas apply.

Site health

GET https://api.rankparse.com/v1/site-health?domain=example.com

X-API-Key: rp_...

Sitemap

GET https://api.rankparse.com/v1/sitemap?domain=example.com&limit=100

X-API-Key: rp_...

Crawl history

GET https://api.rankparse.com/v1/crawl-history?domain=example.com

X-API-Key: rp_...

Wayback Machine snapshots for the domain.

Link audit

GET https://api.rankparse.com/v1/link-audit?domain=example.com

X-API-Key: rp_...

Combined health score, risk flags, anchor profile, and top backlinks.

Site explorer

GET https://api.rankparse.com/v1/site-explorer?domain=example.com

X-API-Key: rp_...

All-in-one snapshot of a domain.

Batch lookup

POST https://api.rankparse.com/v1/batch
Content-Type: application/json
X-API-Key: rp_...

{ "domains": ["a.com", "b.com", "c.com"] }

Bulk domain summaries in one call.

Free Tools (Unauthenticated)

Public, IP-rate-limited endpoints for quick lookups without an API key:

• GET /v1/tools/backlinks?domain=
• GET /v1/tools/domain-authority?domain=
• GET /v1/tools/tech-stack?domain=
• GET /v1/tools/similar-websites?domain=
• GET /v1/tools/domain-age?domain=
• GET /v1/tools/meta-tag-analyzer?url=
• GET /v1/tools/link-intersect?domain_a=&domain_b=
• GET /v1/tools/page-speed?url=

Key Response Fields

Domain Metrics

• authority - Domain authority score
• popularity_rank - Tranco popularity rank
• registered_at - Domain registration date
• registrar - Registrar name

Backlink Fields

• from_url - Source URL
• to_url - Target URL
• anchor - Anchor text
• link_type - dofollow / nofollow / ugc / sponsored
• first_seen - First discovery date

When to Use

• Backlink discovery and analysis
• Competitor link research and gap analysis
• Domain authority lookups at scale
• Tech stack detection
• On-page SEO audits
• Sitemap and crawl history discovery
• Agent-driven SEO workflows where per-call cost matters

Pricing Model

• Pay-as-you-go credit packs (no subscription)
• Most domain endpoints: 1–2 credits per call
• Aggregated endpoints (overlap, intersect, similar, gap): 5 credits
• Link audit: 8 credits
• Site explorer: 10 credits
• Batch: 1 credit per domain
• Free tier available for unauthenticated endpoints

MCP Server

RankParse ships a hosted MCP server exposing all endpoints as tools — connect from Claude, Cursor, or any MCP-compatible agent. See https://rankparse.com for connection details.

Relevant Skills

• seo-audit
• content-strategy
• competitors
• competitor-profiling
• ai-seo
• site-architecture
• schema