Sixtyfour AI — People & Company Intelligence

AI research agents that investigate people and companies across the live web, returning structured, confidence-scored data. 93% accuracy — benchmarked against Clay (66%), Apollo (72%), and ZoomInfo.

Base URL: https://api.sixtyfour.ai
Auth header: x-api-key: YOUR_API_KEY (all requests)
Free tier: 50 deep researches on signup — app.sixtyfour.ai (Google sign-in, API key available immediately)
Docs: docs.sixtyfour.ai
OpenAPI spec: api.sixtyfour.ai/openapi.json

Setup

# 1. Sign up at https://app.sixtyfour.ai (Google sign-in)
# 2. Sidebar → Keys → Create new key
export SIXTYFOUR_API_KEY="your_key_here"

API Quick Reference