SEO data for the agentic era

SEO data for AI agents.

SERP, keywords, backlinks, and AI-search visibility — delivered through MCP, API, and CLI. Built for agents, not dashboards. Start free, pay per request.

Start Free Install MCP Server

Works with Claude, ChatGPT, Claude Code, Gemini CLI, Codex, Goose, and any MCP client.

ray9

$ ray9 serp "best crm for startups" --engine google --location US
┌──────┬───────────────────────────────┬──────────────┬──────────────┐
│ Rank │ Title                          │ Domain       │ AI-cited     │
├──────┼───────────────────────────────┼──────────────┼──────────────┤
│  1   │ Best CRM for Startups (2026)   │ hubspot.com  │ ChatGPT,AIO  │
│  2   │ Startup CRM: Top 10 Compared   │ g2.com       │ Perplexity   │
│  3   │ The Startup CRM Buyer's Guide  │ capterra.com │ —            │
└──────┴───────────────────────────────┴──────────────┴──────────────┘

Claude

ChatGPT

Gemini

Cursor

VS Code

Codex

Windsurf

OpenCode

Goose

Any MCP client. Any language. Any agent framework.

Access

MCP. API. CLI. Pick your path.

One SEO data source, three interfaces — each designed for how agents actually work.

MCP Server

Connect any MCP client to live SEO data in seconds.

Install once, use everywhere. Your agents get SERP results, keyword metrics, backlink profiles, and AI-search visibility — all through the Model Context Protocol, with progressive tool discovery so you don't blow the context window.

{
  "mcpServers": {
    "ray9": {
      "command": "npx",
      "args": ["-y", "@ray9/mcp"]
    }
  }
}

Works with Claude, Cursor, VS Code, and any MCP client

REST API

Structured JSON for when your agents need code-level control.

Clean REST endpoints with token-efficient responses. Built for agent frameworks, RAG pipelines, and custom integrations. API keys, OAuth, and bearer tokens supported.

$ curl https://api.ray9.ai/v1/keywords/ideas \
  -H "Authorization: Bearer ry9_live_..." \
  -d '{"seed":"ai agents","country":"US"}'

{
  "seed": "ai agents",
  "ideas": [
    { "keyword": "ai agents platform", "volume": 22100, "kd": 38 },
    { "keyword": "best ai agents 2026",  "volume": 14800, "kd": 42 }
  ]
}

Standard REST with clean JSON responses

CLI

SEO data at your terminal. Built for agent runtimes.

A first-class CLI for terminal-native agents. Pipe output, script queries, or let Claude Code and Codex call it directly. JSON, table, or CSV output.

# Install
npm install -g @ray9/cli

# SERP with AI-engine overlay
ray9 serp "best crm" --engine google \
  --ai-engines chatgpt,perplexity,aio

# Keyword ideas
ray9 keywords ideas "ai agents" --country US

# Backlinks
ray9 backlinks list example.com --limit 100

No other SEO data provider ships a real CLI.

AI-First

Not a dashboard with an MCP wrapper

Traditional SEO data providers bolt on AI support. We started with agents and worked backwards.

Progressive Tool Discovery

Agents don't need 50 SEO tools dumped into context. Ray9's MCP server exposes a small core set (search, keyword lookup, SERP) and reveals deeper tools (backlink graph, AI-search citations, rank history) as needed. Fewer tokens, better decisions.

Per-Request-Type Pricing

Keyword metadata is cheap. A SERP pull costs a bit more. A backlink crawl costs the most. You're not charged as if every query is the same. Set per-key budgets and spending caps so a runaway agent can't drain your balance overnight.

Structured for LLMs

Responses are token-efficient by design. Clean JSON, consistent schemas across SERP, keyword, backlink, and GEO tools, no HTML cruft. Your agent spends tokens on decisions, not parsing.

Data

SERP. Keywords. Backlinks. AI search.

The SEO signals agents need — across Google, Bing, and the AI engines.

Data Type	Google	AI Engines
Organic SERP
Ads / paid results		—
Featured snippets, PAA, AI Overviews
Keyword volume, difficulty, intent		—
Keyword ideas & clustering		—
Backlink profile & referring domains		—
Anchor text, link context, velocity		—
Rank tracking
AI-search brand / citation visibility	—
Competitor overlap & share of voice

AI Engines include ChatGPT Search, Perplexity, Claude, Gemini, Google AI Overviews, and Bing Copilot. More engines, locations, and languages rolling out.

Agents

The details agents care about

We obsess over the things that make SEO data actually work in agentic workflows.

Multiple Auth Methods

API keys for simple scripts. OAuth for MCP apps. Bearer tokens for server-to-server. Follow the standards your agent framework expects.

Rate Limiting You Control

Set your own rate limits per key, per agent, per org. Get warnings before you hit them, not errors after.

Cost Budgets

Set daily or monthly spend caps. Assign budgets per API key or per team. No bill shock from runaway agents.

Organization Support

Create orgs, invite team members, manage keys centrally. Role-based access for who can see what data and spend what budget.

Usage Dashboard

See exactly what's being called, by whom, how often. Track cost in real-time, broken down by request type. Export usage for your own analytics.

Instant Provisioning

Use Cases

What agents build with Ray9

From single-prompt research agents to production GEO tooling.

SEO Research Agents

Agents that answer "what keywords should we target for X?" with live volume, difficulty, intent, and clustering data. Pair with Exa or Tavily for content research.

Rank Tracking Agents

Daily rank tracking across Google, Bing, and AI engines. Let Claude or ChatGPT summarize movement each morning — no dashboard to log into.

Backlink Audit Agents

Agents that crawl referring domains, detect toxic links, track anchor-text distribution, and summarize competitor link strategies.

GEO / AI-Search Visibility

Monitor how your brand is cited across ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews, and Bing Copilot. Track share of voice over time.

Programmatic SEO

Generate topic clusters, intent maps, and content briefs at scale. Feed keyword and SERP data into content pipelines and RAG systems.

Agent-Driven Content Ops

CLI-native agents like Claude Code, Codex, and Goose can query SEO data while drafting briefs, auditing pages, or building internal dashboards — without leaving the terminal.

FAQ

Frequently asked questions

Everything you need to know about Ray9.

Get Started

Your agents need SEO data. Give them Ray9.

Free to start. No contracts. No sales calls. Install the MCP server or grab an API key and ship.

Start Free Install MCP Server

1,000 free requests/month. No credit card required.

SEO data for AI agents.

MCP. API. CLI. Pick your path.

MCP Server

REST API

CLI

Not a dashboard with an MCP wrapper

Progressive Tool Discovery

Per-Request-Type Pricing

Structured for LLMs

SERP. Keywords. Backlinks. AI search.

The details agents care about

Multiple Auth Methods

Rate Limiting You Control

Cost Budgets

Organization Support

Usage Dashboard

Instant Provisioning

What agents build with Ray9

SEO Research Agents

Rank Tracking Agents

Backlink Audit Agents

GEO / AI-Search Visibility

Programmatic SEO

Agent-Driven Content Ops

Frequently asked questions

What is Ray9?

How is Ray9 different from Ahrefs, DataForSEO, or SE Ranking?

What data does Ray9 provide?

Which search engines and AI engines are covered?

Is there a free tier?

How does pricing work?

What MCP clients work with Ray9?

Can I use the CLI with Claude Code, Codex, or Gemini CLI?

What authentication methods do you support?

Do I need to sign a contract or talk to sales?

Is Ray9 open source?

Your agents need SEO data. Give them Ray9.