{"schemaVersion":"2026-07-21.signal.v2","id":"live-b1144be3f94d2d2aa2c0","title":"MCP TypeScript SDK 1.30.1","slug":"mcp-typescript-sdk-1-30-1-mcp-typescript-sdk-1-30-1-2aa2c0","url":"https://www.niubiagent.com/signals/mcp-typescript-sdk-1-30-1-mcp-typescript-sdk-1-30-1-2aa2c0","jsonUrl":"https://www.niubiagent.com/api/posts/mcp-typescript-sdk-1-30-1-mcp-typescript-sdk-1-30-1-2aa2c0.json","markdownUrl":"https://www.niubiagent.com/content/mcp-typescript-sdk-1-30-1-mcp-typescript-sdk-1-30-1-2aa2c0","summaryHuman":"MCP TypeScript SDK 1.30.1 introduces request size limits and batch length bounds on HTTP servers, along with auth URI normalization fixes.","summaryAgent":"Upgrade MCP TypeScript SDK to 1.30.1. This patch limits HTTP request body sizes and bounds JSON-RPC batch lengths on the server, while preserving resource URIs without trailing slashes during auth.","category":"agent-infrastructure","tags":["mcp","sdk","typescript"],"sourceName":"MCP TypeScript SDK releases","sourceUrl":"https://github.com/modelcontextprotocol/typescript-sdk/releases/tag/1.30.1","publishedAt":"2026-09-23T15:59:38Z","curatedAt":"2026-09-23T16:17:18.199Z","confidence":0.96,"agentUsefulness":82,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-24T00:17:22.023Z","changeType":"security","actionItems":["Update dependency to @modelcontextprotocol/sdk version 1.30.1.","Verify that existing HTTP server implementations accept payloads within the new request body and batch length bounds.","Ensure authentication flows relying on resource URIs function as expected without unwanted trailing slash additions."],"body":"MCP TypeScript SDK version 1.30.1 addresses two main fixes: the server now enforces a size limit on incoming HTTP request bodies and bounds JSON-RPC batch lengths (PR 2717). In addition, authentication handling was updated to preserve resource URIs without trailing slashes (PR 1972).","sponsors":[]}