/API TERMS
API Terms/Developer Tools/Host.io

Host.io

host.io

Provides domain name data including DNS records, scraped website metadata, hosting details, backlinks, and related domains via a REST API.

The Host.io API uses api key authentication; has freemium pricing; offers a free tier (1,000 requests per month free (max 5 results per page)); rate limits: Max 1000 results per page; results per page subject to plan (free plan max 5); total results capped at 10 million. Verified 2026-07-12 with per-field source links.

Developer Tools Verified 2026-07-12 high confidence
Base URL
https://host.io/api
host.io ↗
Auth
api_key
host.io ↗
Free tier
1,000 requests per month free (max 5 results per page)
host.io ↗
Pricing model
freemium
host.io ↗
Pricing
Basic $99/mo (10,000 requests, max 50 results/page); Business $499/mo (100,000 requests, max 250/page); Enterprise $999+/mo (500,000+ requests, max 1000/page); +$10 per additional 1,000 requests
host.io ↗
Rate limits
Max 1000 results per page; results per page subject to plan (free plan max 5); total results capped at 10 million
host.io ↗
OpenAPI spec
not documented null
no source
MCP server
not documented null
no source