Machine Learning — entry 011 of 24
Jina AI
Jina AI provides token-billed APIs for multilingual, multimodal embeddings, a reranker for search relevance, and the Reader endpoint (r.jina.ai) that converts any URL into clean Markdown for LLM grounding. New accounts get an auto-generated API key with a ten-million-token free trial before moving to paid rate tiers (100 RPM/100K TPM free, up to 5,000 RPM/50M TPM on the top plan). Recent additions include an Elasticsearch-native inference plugin and MCP/CLI integrations for agent workflows.
GreatAPIs Score
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<a href="https://greatapis.com/api/jina-ai/"><img src="https://greatapis.com/badge/jina-ai.svg" alt="Scored 81 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.
Developer reference
500 requests/minute on the free tier for Embeddings/Reranker/Reader APIs (2k/5k RPM premium); 100 RPM free tier for the Search API (1000 RPM premium)