---
title: "Cancel an Anthropic Message Batch"
method: POST
path: "/v1/messages/batches/{id}/cancel"
tags: ["Anthropic"]
---

# Cancel an Anthropic Message Batch

`POST /v1/messages/batches/{id}/cancel`

## Request

- Base URL: `https://api.nano-gpt.com/api`
- URL: `https://api.nano-gpt.com/api/v1/messages/batches/{id}/cancel`
- Auth: one of:
  - HTTP bearer
  - API key in header `x-api-key`

## Path parameters

- `id` string, required

## Response `200`

Canceled Message Batch

- AnthropicMessageBatch
  - `id` string, required
  - `type` 'message_batch', required
  - `processing_status` 'in_progress' | 'canceling' | 'ended', required
  - `request_counts` AnthropicMessageBatchRequestCounts, required
    - `processing` integer, required
    - `succeeded` integer, required
    - `errored` integer, required
    - `canceled` integer, required
    - `expired` integer, required
  - `created_at` string, date-time, required
  - `expires_at` string, date-time, required
  - `ended_at` string, nullable, required
  - `archived_at` string, nullable, required
  - `cancel_initiated_at` string, nullable, required
  - `results_url` string, uri, nullable, required

## Other responses

- `401`: Anthropic Messages API error response
- `404`: Anthropic Messages API error response

## Changes

- **2026-11-03** `cc8b07d75689`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/nano-gpt/apis/nanogpt-api/changes/v1/messages/batches/:id/cancel/post.md)

---

[API](https://skmtc.dev/nano-gpt/apis/nanogpt-api.md) - [All operations](https://skmtc.dev/nano-gpt/apis/nanogpt-api/llms.txt) - [OpenAPI document](https://skmtc.dev/nano-gpt/apis/nanogpt-api/revisions/cc8b07d75689?raw)