SEO and keyword data API with 44 routes, paid per call over x402 in USDC on Base
Stage
Startup
Not given
Founded
Not given
Not given
Based in
Not given
NL
Pricing model
Freemium
Paid
Pricing
Free access to the directory API and MCP server. Listing a new API costs $0.25 USDC from October 26, 2026, which includes one real purchase verification.
Prices per call range from $0.012 to $0.25 in USDC on Base. Keyword overview: $0.04. Search volume: $0.04. Keyword ideas: $0.04. Related keywords: $0.04. Keyword variations: $0.04. Keyword difficulty: $0.04. Search intent: $0.04. Keyword volume history: $0.048. Keyword suggestions: $0.04. Google Ads
Key features
Real USDC purchases to verify API delivery
Paid-verified status with Base blockchain transactions
Reputation scores from recency-weighted probe pass rates
Continuous endpoint probing every 2 minutes to 8 hours
Free discovery API with three-line pre-spend checks
MCP server integration with search and detail tools
Machine-readable catalogue in NDJSON format
Purchase outcome tracking and transaction visibility
Dispute resolution and result correction in public
Automatic payment address rotation detection
Keyword research with search volume, CPC, difficulty, intent and ideas for up to 100 keywords per call
Domain overview, traffic estimates and ranked keywords for up to 100 domains
Backlink profile data including referring domains and anchor texts with 24-month history
On-page SEO audit and Lighthouse page speed analysis for individual URLs
Amazon keyword ideas and search results across multiple regional stores
Brand mention tracking and AI answer visibility monitoring
Website technology stack and WHOIS domain registration data
No account, API key or subscription required; pay per call in USDC on Base blockchain
What makes it different
Only directory that pays with real USDC to verify delivery
Public ledger of all purchases and transactions on blockchain
Native MCP integration for AI agent workflows
Pay-per-call pricing in USDC stablecoin on Base blockchain with no account setup required
44 routes across 9 data families covering comprehensive SEO and keyword research data
nohumans.directory