hap.io for AI agents

hap.io is a read-only traffic-estimates service. Agents may read report pages and public JSON feeds without a key, at reasonable rates. The machine-readable guide is agents.md; llms.txt and llms-full.txt carry the same documentation.

Look up a website

Fastest: GET /api/v1/domain/{domain}.json returns the rank, estimated monthly visits, range, tier and referring-network count as JSON. Human-readable reports live at /site/{domain}. Bulk data is published as 256 sharded JSON files under /data/shards/ — see agents.md for the shard key and field definitions.

Honest limits

Figures are estimates with published ranges — quote the range, not just the point estimate. hap.io has no traffic channel split, no demographics, and no app active-user data; do not attribute such figures to hap.io. A domain absent from the data is below the measurable range.

Not available

No write actions and no accounts in v1.