Atlas Cloud

Atlas Cloud Messages API

The Messages API from Atlas Cloud — 1 operation(s) for messages.

Documentation GitHub OpenAPI

Operations 1

POST /v1/messages/count_tokens Count tokens for messages using the Anthropic Messages protocol #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Atlas Cloud Messages API
  version: '2026-10-13'
  description: 'GENERATED FROM DOCUMENTATION by API Evangelist on 2026-10-13: 17 operation(s) read from 25 public documentation page(s) (each operation names its page in x-source). This is not the provider''s published contract; Atlas Cloud has published no machine-readable contract that the pipeline could find. Engine: anthropic.'
  x-evidence-tiers:
    code-example: 16
    documentation: 1
    pages-with-code: 21
    pages-read: 25
  x-generated-from: documentation
  x-provenance: generated
  x-authored-by: API Evangelist
  x-generated: '2026-10-13'
  x-generator: generate-contract-from-docs.py
  x-engine: anthropic
  x-sources:
  - https://www.atlascloud.ai/docs/public-api
  - https://www.atlascloud.ai/docs/api-keys
  - https://www.atlascloud.ai/docs/webhooks
  - https://www.atlascloud.ai/docs/models/llm
  - https://www.atlascloud.ai/docs/get-started
  - https://www.atlascloud.ai/docs/llm-protocols
  - https://www.atlascloud.ai/docs/tutorials/text-to-image
  - https://www.atlascloud.ai/docs/tutorials/narrated-video
  - https://www.atlascloud.ai/docs/cli
  - https://www.atlascloud.ai/docs/models/get-start
  - https://www.atlascloud.ai/docs/models/image
  - https://www.atlascloud.ai/docs/models/video
  - https://www.atlascloud.ai/docs/models/audio
  - https://www.atlascloud.ai/docs/how-it-works
  - https://www.atlascloud.ai/docs/predictions
  - https://www.atlascloud.ai/docs/upload-files
  - https://www.atlascloud.ai/docs/data-retention
  - https://www.atlascloud.ai/docs/skills
  - https://www.atlascloud.ai/docs/createChatCompletion
  - https://www.atlascloud.ai/docs/billing/model-billing
  - https://www.atlascloud.ai/docs/billing/credits
  - https://www.atlascloud.ai/docs/faq
  - https://www.atlascloud.ai/docs/public-api/balance
  - https://www.atlascloud.ai/docs/public-api/model-usage
  - https://www.atlascloud.ai/docs/public-api/model-costs
  x-pruned: '2026-10-13: removed 4 non-API paths the generator kept (CLI install.sh, bare /v1, a templated example of /public/v1/balance, a duplicate of /api/v1/model/{modelid}); re-prefixed public billing paths'
servers:
- url: https://api.atlascloud.ai
security:
- bearer: []
tags:
- name: Messages
paths:
  /v1/messages/count_tokens:
    post:
      operationId: post_v1_messages_count_tokens
      tags:
      - Messages
      summary: Count tokens for messages using the Anthropic Messages protocol
      x-source: https://www.atlascloud.ai/docs/llm-protocols
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/PostV1MessagesCountTokensRequest'
      responses:
        '201':
          description: Success (status as documented)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PostV1MessagesCountTokensResponse'
      x-evidence:
        kind: documentation
components:
  schemas:
    PostV1MessagesCountTokensResponse:
      type: object
      properties:
        input_tokens:
          type: integer
    PostV1MessagesCountTokensRequest:
      type: object
      properties:
        model:
          type: string
        messages:
          type: array
      required:
      - model
      - messages
  securitySchemes:
    bearer:
      type: http
      scheme: bearer