Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
One change · api

Create a Message Batch changed

api/beta/messages/batches/create

Nearest release: v2.1.277, published 4 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+2added
Lines−2removed
From line 1,336 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits11to this page, all time

The whole hunk

from line 1336, old and new numbered
/
lines
from line 1336
13361336 
13371337 - `BetaToolChangeMCPToolReference object`
13381338 
1339 Reference to a single MCP tool by its server and remote name — the
1339 Reference to a single MCP tool by its server and remote name; the
13401340 same `server_name`/`name` pair `mcp_tool_use` carries.
13411341 
13421342 - `type: "mcp_tool_reference"`
from line 1378
13781378 
13791379 - `BetaToolChangeMCPToolReference object`
13801380 
1381 Reference to a single MCP tool by its server and remote name — the
1381 Reference to a single MCP tool by its server and remote name; the
13821382 same `server_name`/`name` pair `mcp_tool_use` carries.
13831383 
13841384 - `BetaToolChangeMCPToolsetReference object`