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typescript changedcli-sdks-libraries/sdks/typescript

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8888 
8989## Streaming responses
9090 
91The SDK provides support for streaming responses using Server Sent Events (SSE).
91The SDK provides support for streaming responses using Server-Sent Events (SSE).
9292 
9393```typescript
9494const client = new Anthropic();
from line 275
275275 
276276### MCP error handling
277277 
278The conversion functions throw `UnsupportedMCPValueError` if an MCP value isn't supported by the Claude API (for example, unsupported content type, unsupported MIME type, non-http/https resource link).
278The conversion functions throw `UnsupportedMCPValueError` if an MCP value isn't supported by the Claude API (for example, unsupported content type, unsupported MIME type, non-HTTP/HTTPS resource link).
279279 
280280## Message batches
281281 
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330330* an `fs.ReadStream`
331331* the return value of the `toFile` helper
332332 
333Set the content-type explicitly as the files API will not infer it for you:
333Set the content type explicitly as the Files API will not infer it for you:
334334 
335335```typescript
336336import fs from "node:fs";
from line 745
745745## Runtime support
746746 
747747<Accordion title="Browser usage">
748 Enabling the `dangerouslyAllowBrowser` option can be dangerous because it exposes your secret API credentials in the client-side code. Web browsers are inherently less secure than server environments, any user with access to the browser can potentially inspect, extract, and misuse these credentials. This could lead to unauthorized access using your credentials and potentially compromise sensitive data or functionality.
748 Enabling the `dangerouslyAllowBrowser` option can be dangerous because it exposes your secret API credentials in the client-side code. Web browsers are inherently less secure than server environments. Any user with access to the browser can potentially inspect, extract, and misuse these credentials. This could lead to unauthorized access using your credentials and potentially compromise sensitive data or functionality.
749749 
750750 **When might this not be dangerous?**
751751 
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7847842. Changes to library internals which are technically public but not intended or documented for external use.
7857853. Changes that aren't expected to impact the vast majority of users in practice.
786786 
787Backward-compatibility is taken seriously to ensure you can rely on a smooth upgrade experience.
787Backward compatibility is taken seriously to ensure you can rely on a smooth upgrade experience.
788788 
789789## Frequently asked questions
790790 
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