◉CLAUDE LABJP
●MCP — Support for the 2026-07-28 spec is rolling out across Claude. The protocol moves from bidirectional and stateful to request/response, so MCP servers can now live on serverless and edge infrastructure●EXTENSIONS — Three official extensions have landed: MCP Apps for server-rendered UI, Tasks for async and long-running work, and Enterprise Managed Auth for IdP-based org-wide provisioning●ADOPTION — MCP passed 400 million monthly SDK downloads, roughly 4x growth this year, settling into its role as the standard way to connect agents to applications●QUOTA — Today, August 19, is the last day of the 50 percent weekly usage boost for Claude Code subscribers. If you have long agent runs queued, this is the window●PRICING — Claude Sonnet 5's introductory rate of $2 per million input tokens and $10 output ends August 31; standard pricing of $3 and $15 takes over on September 1, twelve days out●FIX — A bug where MCP v2 connections endlessly reopened subscriptions against servers with fixed timeouts is resolved, and a forward_user_identity setting was added for user attribution●MCP — Support for the 2026-07-28 spec is rolling out across Claude. The protocol moves from bidirectional and stateful to request/response, so MCP servers can now live on serverless and edge infrastructure●EXTENSIONS — Three official extensions have landed: MCP Apps for server-rendered UI, Tasks for async and long-running work, and Enterprise Managed Auth for IdP-based org-wide provisioning●ADOPTION — MCP passed 400 million monthly SDK downloads, roughly 4x growth this year, settling into its role as the standard way to connect agents to applications●QUOTA — Today, August 19, is the last day of the 50 percent weekly usage boost for Claude Code subscribers. If you have long agent runs queued, this is the window●PRICING — Claude Sonnet 5's introductory rate of $2 per million input tokens and $10 output ends August 31; standard pricing of $3 and $15 takes over on September 1, twelve days out●FIX — A bug where MCP v2 connections endlessly reopened subscriptions against servers with fixed timeouts is resolved, and a forward_user_identity setting was added for user attribution
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Anthropic SDK

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Claude API4Automation1Fallback1Scheduled Jobs1Beta Features1Production1Resilience1Streaming1TypeScript1Error Handling1errors1beginners1
⬡ API & SDK/2026-06-16Advanced

Confirm Your Model Actually Responds Before a Scheduled Run Begins

A model you configured can be gone before your nightly job even wakes up. Tell retirement, withdrawal, and regional restriction apart with a single startup probe, then rewrite the run config to an eligible model — with complete, working TypeScript.

⬡ API & SDK/2026-06-15Advanced

Centralizing the anthropic-beta Header So a Retired Beta Won't Kill Your Batch

Scattered anthropic-beta headers turn a beta retirement or GA graduation into a 400 that takes down an entire batch. A small capability registry, a startup preflight, and tiered fallback keep your pipeline running across feature generations.

⬡ API & SDK/2026-04-20Advanced

Three Hidden Pitfalls When Implementing Claude API Streaming

Real-world lessons from building with Claude API streaming: runtime environment mismatches, error handling gaps, and silent token cost overruns — with working TypeScript examples.

⬡ API & SDK/2026-03-21Beginner

First Claude API Call Failing? Common Error FAQ

Claude API beginner's error resolution guide. Covers 401 authentication errors, 429 rate limiting, 400 bad requests, empty responses, streaming failures, tool_use errors, context window exceeded, tool_result submission, and Spanner temporarily unavailable issues.