> ## Documentation Index > Fetch the complete documentation index at: https://cool.computer/docs/llms.txt > Use this file to discover all available pages before exploring further. # Create a release > Records a release manifest: every file's path, sha256 and size, and optionally whether it is executable. The response lists the content hashes the server does not hold yet (content is deduplicated per computer by sha256) and the next request to make. Paths are relative; .., absolute paths, backslashes, NUL, duplicates and anything under .git/ are rejected. Limits: 20,000 files, 25 MiB per file and 1 GiB in total. ## OpenAPI ````yaml https://www.cool.computer/openapi.json post /api/computers/{id}/releases openapi: 3.1.0 info: title: Cool Computers API version: 1.0.0 description: >- Create and operate reachable Linux computers. Each computer keeps a stable name.cool.computer address, persistent files, and agent-ready command execution. REST requests use UTC-aligned one-minute limits: 600 requests per account identified by a recognized valid account bearer credential, a separate 600-request budget per computer-scoped credential, or 60 requests per source IP otherwise. Read-only GETs answered from API state spend a separate read budget reported as account-read or computer-read, so status polling cannot exhaust the budget that protects work and mutations. To bound authentication-provider traffic, at most 60 first-seen bearer values are checked per source IP in a minute; recognized valid credentials use their account or computer policy. Successful bearer authentication is reused for at most five seconds; transient provider failures are not cached. Non-exempt API responses include the structured RateLimit and RateLimit-Policy fields; request admission 429 responses use code api_request_rate_exceeded and also include Retry-After. Health, OpenAPI, webhooks, callbacks, SSE, and WebSocket endpoints are exempt from the REST request budget. Authenticated SSE connection attempts remain subject to the authentication safeguards and can receive the same typed 429 response. servers: - url: https://api.cool.computer description: Canonical API origin security: [] tags: - name: Authentication description: Obtain and manage bearer credentials. - name: Billing description: Inspect and manage the account's no-card trial or Pro plan. - name: Computers description: Create, inspect, and delete resident computers. - name: Execution description: Run commands on a computer. - name: Files description: Read and change a computer's persistent files. - name: Publishing description: >- Publish files to a computer's URL as immutable releases, with no VM. To show something, publish the files; to run something, use the computer (exec, terminal, services), which gets Linux on first use. - name: Services description: >- Manage processes and select the HTTP port exposed at a computer's stable address. - name: Email description: Read and send mail through a computer's inbox. - name: Network description: Control a computer's public visibility and outbound network policy. - name: Sharing description: Invite people to use a computer without granting owner controls. - name: Public description: Unauthenticated discovery endpoints. externalDocs: description: Cool Computers agent registration guide url: https://www.cool.computer/auth.md paths: /api/computers/{id}/releases: post: tags: - Publishing summary: Create a release description: >- Records a release manifest: every file's path, sha256 and size, and optionally whether it is executable. The response lists the content hashes the server does not hold yet (content is deduplicated per computer by sha256) and the next request to make. Paths are relative; .., absolute paths, backslashes, NUL, duplicates and anything under .git/ are rejected. Limits: 20,000 files, 25 MiB per file and 1 GiB in total. operationId: createComputerRelease parameters: - $ref: '#/components/parameters/ComputerID' requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ReleaseCreate' responses: '201': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: The new release, the hashes to upload and the next request. content: application/json: schema: $ref: '#/components/schemas/ReleaseCreated' '400': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: Bad Request. `invalid_release` names the rejected path or limit. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '401': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: Unauthorized. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '403': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: Forbidden. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '404': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: Not Found. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '409': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: >- Conflict. `publish_in_progress`: the computer is still being created or is gaining a VM. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '413': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: Payload Too Large. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '422': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: >- Unprocessable Content. `content_size_conflict`: one sha256 is listed with two sizes. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '429': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' Retry-After: $ref: '#/components/headers/Retry-After' description: >- Too Many Requests. If the problem code is api_request_rate_exceeded, wait for Retry-After seconds; other problem codes describe a separate limit. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '500': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: Internal Server Error. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' '503': headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: >- Service Unavailable. `artifacts_unavailable` means publishing is not configured on this server. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' default: headers: RateLimit: $ref: '#/components/headers/RateLimit' RateLimit-Policy: $ref: '#/components/headers/RateLimit-Policy' description: >- A machine-readable API error with a stable code and recovery instruction. content: application/problem+json: schema: $ref: '#/components/schemas/Problem' security: - bearerAuth: [] components: parameters: ComputerID: name: id in: path required: true description: Stable public computer identifier. schema: type: string minLength: 1 example: cmp_123 schemas: ReleaseCreate: type: object additionalProperties: false required: - files properties: files: type: array minItems: 1 maxItems: 20000 items: $ref: '#/components/schemas/ReleaseFile' ReleaseCreated: type: object additionalProperties: false required: - release - missing - next properties: release: $ref: '#/components/schemas/Release' missing: type: array items: type: string pattern: ^[0-9a-f]{64}$ next: $ref: '#/components/schemas/ReleaseNext' Problem: type: object additionalProperties: false required: - type - title - status - code - detail - resolution properties: type: type: string format: uri title: type: string status: type: integer minimum: 400 maximum: 599 code: type: string pattern: ^[a-z0-9_]+$ detail: type: string resolution: type: string context: type: object additionalProperties: true ReleaseFile: type: object additionalProperties: false required: - path - sha256 - size properties: path: type: string minLength: 1 description: Relative path such as index.html or assets/app.js. sha256: type: string pattern: ^[0-9a-f]{64}$ size: type: integer format: int64 minimum: 0 maximum: 26214400 executable: type: boolean default: false description: >- A computer's VM gets this file with mode 0755 instead of 0644, so run or a service can start it. Serving files from the edge ignores it. Release: type: object additionalProperties: false required: - number - state - live - files - bytes - created_at properties: number: type: integer minimum: 1 state: type: string enum: - uploading - ready - failed live: type: boolean files: type: integer minimum: 0 bytes: type: integer format: int64 minimum: 0 created_at: type: string format: date-time ready_at: type: string format: date-time ReleaseNext: type: object additionalProperties: false required: - action description: 'What to do next: upload the missing hashes, finalize, or nothing (done).' properties: action: type: string enum: - upload - finalize - done upload: $ref: '#/components/schemas/ReleaseLink' finalize: $ref: '#/components/schemas/ReleaseLink' ReleaseLink: type: object additionalProperties: false required: - method - href properties: method: type: string enum: - PUT - POST href: type: string description: API path; {sha256} stands for each missing hash. headers: RateLimit: description: >- The applied policy name, requests remaining after this request, and whole seconds until the current UTC-aligned window resets. schema: type: string pattern: >- ^"(account|account-read|computer|computer-read|source)";r=[0-9]+;t=([1-9]|[1-5][0-9]|60)$ examples: - '"account";r=599;t=42' - '"computer-read";r=598;t=42' RateLimit-Policy: description: >- The selected policy name, quota, and window in seconds. Valid account credentials use account or account-read with q=600, computer credentials use computer or computer-read with q=600, and unauthenticated or unrecognized requests use source with q=60 for their source IP. schema: type: string pattern: >- ^("(account|account-read|computer|computer-read)";q=600|"source";q=60);w=60$ examples: - '"account";q=600;w=60' - '"computer-read";q=600;w=60' Retry-After: description: >- Whole seconds to wait after an api_request_rate_exceeded response before retrying. Other 429 problem codes describe separate resource or provider limits and do not inherit this retry value. schema: type: integer minimum: 1 maximum: 60 examples: - 42 securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: WorkOS user or agent access token, or Cool Computers API key description: >- A Cool Computers API key, user access token, or claimed agent access token in the Authorization header. Follow https://www.cool.computer/auth.md for agent registration and https://www.cool.computer/authentication.md for direct user credentials. ````