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Every SDK is a thin layer over the same HTTP API, so anything in these docs works from any of them. Each one reads your key from the HYDRAFETCH_API_KEY environment variable when you do not pass one.

Server SDKs

The same first call in each:
Each SDK’s README lists every method with its credit cost:

Agent frameworks

For agents that speak MCP, connect to https://api.hydrafetch.com/mcp instead. It lists its tools at /mcp/tools.

In the browser

Logos are the one thing meant to be loaded from a web page. These packages build logo image URLs from a publishable key, which is safe to ship to the browser. Never put your secret API key in browser code. See Logo for how logo images are served and billed.