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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 25 Sep 2026
One change · api

overview changedapi/overview

Nearest release: v2.1.283, published 3 hours after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

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First seen 14 Aug 2026 this site's first read of the page
Recorded edits11to this page, all time

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2626* **[Messages API](https://platform.claude.com/docs/en/api/messages/create)**: Send messages to Claude for conversational interactions (`POST /v1/messages`)
2727* **[Message Batches API](https://platform.claude.com/docs/en/api/messages/batches/create)**: Process large volumes of Messages requests asynchronously with 50% cost reduction (`POST /v1/messages/batches`)
28* **[Token Counting API](https://platform.claude.com/docs/en/api/messages-count-tokens)**: Count tokens in a message before sending to manage costs and rate limits (`POST /v1/messages/count_tokens`)
28* **[Token Counting API](https://platform.claude.com/docs/en/api/messages/count_tokens)**: Count tokens in a message before sending to manage costs and rate limits (`POST /v1/messages/count_tokens`)
2929* **[Models API](https://platform.claude.com/docs/en/api/models/list)**: List available Claude models and their details (`GET /v1/models`)
3030* **[Files API](https://platform.claude.com/docs/en/api/files/upload)**: Upload and manage files for use across multiple API calls (`POST /v1/files`, `GET /v1/files`)
3131* **[Skills API](https://platform.claude.com/docs/en/api/skills/create)**: Create and manage custom agent skills (`POST /v1/skills`, `GET /v1/skills`)
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