What are the best alternatives to Clearbit API?

The top alternatives to Clearbit API are Claude Fable 5, Gemini 3, Claude Opus 4.8, ranked by real usage data on Unfragile.

Are there free alternatives to Clearbit API?

Yes, 10 free alternatives to Clearbit API exist, including Llama 4, GPT-4o, Mistral Large.

20 alternatives ranked by real usage data. Clearbit API scores 56/100 — 20 tools score higher.

Real-time company and person data enrichment API.

20 alternatives

10 free options

20 score higher

Anthropic's 2026 flagship — strongest Claude for agents, long-horizon coding, and tool orchestration.