Is Jina AI free to use?

Yes, Jina AI is listed as a free public API. Visit the official documentation for current rate limits and usage policies.

Does Jina AI require authentication?

Yes, Jina AI requires API Key authentication. Check the documentation for setup instructions.

Can I call Jina AI directly from the browser?

Yes, Jina AI supports CORS, so client-side calls work without a proxy.

Jina AI — Free Public API

Overview

Jina AI provides embeddings/reranking — key-based (an invalid key returns 401, verified).

Quick Start

Embeddings (replace YOUR_KEY):

curl "https://api.jina.ai/v1/embeddings" \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"jina-embeddings-v3","input":["hello"]}'

Authentication

Register at jina.ai → free API key.
Send it as Authorization: Bearer (invalid → 401, verified).

Rate Limits & Notes

Free tier with limits (check the docs); paid plans scale.
Embeddings, reranking, reader.

FAQ

Is Jina AI free? Free tier with limits; more is paid.

Why 401? Invalid keys return 401 (verified) — register for a key.

What’s the auth style? Authorization: Bearer.

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