> ## Documentation Index > Fetch the complete documentation index at: https://docs.reactor.inc/llms.txt > Use this file to discover all available pages before exploring further. > ## Agent Instructions > To build and serve your own model, start at /deploy/development/quickstart and /deploy/development/overview. Deploying is the default path: reactor init scaffolds a workspace, reactor auth login authenticates, and reactor model deploy registers the model, publishes the release with the weights/ folder, and activates it on Reactor's GPUs, in one command from that workspace. Docker must be running, because the publish step builds the image locally. Bump model.version in reactor.yaml before redeploying a change, because a release that already has an image is reactivated as it is. Deployment access is granted per account, so contact team@reactor.inc if a deploy is refused. Every key in reactor.yaml is documented at /deploy/platform/reactor-yaml. Model code imports reactor_runtime; Python client code imports reactor_sdk. The runtime overview explains the model interface. Running the model on your own machine with reactor run is optional and needs a GPU you attach with --gpus; /deploy/development/local-testing covers that loop and pairs a complete brightness model with a Python client test in a separate brightness-test workspace. > Reactor hosts multiple models, each with its own connect slug (modelName) and command/event schema. The video model catalog — slug, typed SDK package, and links to its schema — is at /model-api-reference/overview. Robotics policy documentation starts at /robotics/overview; The launch policies are Cosmos Nano DROID (/robotics/cosmos/nano-policy-droid/), DreamZero DROID (/robotics/dreamzero/droid/), and FLUX Action DROID (/robotics/flux-action/droid/), organized by model family and embodiment. Some models expose one slug per experience (e.g. HappyOyster); always take the slug from the model's own pages, never guess it. > Fastest path to a working app: `npx create-reactor-app my-app --model=` scaffolds a complete app with secure auth wired up. Typed TypeScript SDKs are published as @reactor-models/; Python uses the base reactor-sdk package. > Auth: exchange an API key (rk_...) for a JWT via POST https://api.reactor.inc/tokens from your server. Never put the API key in client-side code. > Append .md to any docs URL for clean Markdown. Search these docs via the MCP server at https://docs.reactor.inc/mcp. # Finalize a weights upload > Completes a release's weights bundle. Send the manifest of every file in the bundle. The server checks that each file was uploaded or can be copied from an earlier release, copies any deduplicated files in the background, and writes the manifest last. The bundle is complete once the manifest is written; `copying` counts the files still being copied. The server computes `total_size` from the entries and ignores the client's value. The body may be at most 4 MiB and list at most 10000 files. A finalize replaces the release's previous bundle. A manifest whose entries all carry an `hf://` `source` names Hugging Face files and uploads nothing; it cannot be mixed with uploaded entries. Callable by an `account_admin` or `developer` of the owning account when model serving is enabled for the account. ## OpenAPI ````yaml /openapi.yaml post /models/{id}/releases/{release}/weights/finalize openapi: 3.1.0 info: title: Reactor Platform API version: '1' description: > The Reactor Platform API mints session tokens, starts and operates sessions, negotiates media transport, and manages your account, models, and deployments. Every path is relative to `https://api.reactor.inc`. See the [Introduction](/platform-api/introduction) and [Authentication](/platform-api/authentication) pages for credentials, versioning, and errors. contact: name: Reactor support url: https://docs.reactor.inc/resources/support servers: - url: https://api.reactor.inc description: Production security: - apiKey: [] tags: - name: Status description: >- Public, unauthenticated endpoints for service health, pricing, and the values the API accepts. - name: Tokens description: > Exchange a long-lived API key for a short-lived, session-scoped token that a client can use to create and operate sessions without holding the key. - name: Users description: > Read your own user record, your account's roster, and account memberships, and manage member roles as an account admin. - name: API Keys description: >- Revoke API keys. Use the [Dashboard](https://reactor.inc/dashboard) to list or create keys. The CLI can also create a key with `reactor auth login`. - name: Sessions description: > Create, inspect, and end sessions. A session holds one running model for one client application; media and messages flow over a transport you attach to it afterwards. - name: Transport description: > Attach a client to a session. WebRTC signaling carries ICE servers, SDP, and ICE candidates; a LiveKit room connection lets the session join a room you host. - name: Files description: > Upload files a model reads, either for one running session or ahead of time for sessions you have not started yet. - name: Recordings description: > Fetch the recorded video of a session as an HLS playlist, during the session or after it ends. - name: Accounts description: > Read and manage the account your credential acts in: its name and slug, its credit balance, its effective quotas, and its accelerator capacity. - name: Invitations description: > Invite people to your account by email, and manage pending invitations. The recipient accepts from the emailed link while signed in to the dashboard. - name: Usage description: > List the sessions your account has run, filter them by status, date, model, or API key, and read exact session totals for a date window. - name: Models description: > Register, read, update, and delete the models your account serves, and list the models you can use. The `reactor model` CLI commands are built on these endpoints. - name: Releases description: > Register a model's versioned releases, push their container image, and deploy a release with a per-region instance plan. - name: Model Weights description: > Upload and inspect the weights bundle of a release: single-request uploads, multipart uploads for large files, and the server-side finalize that marks a bundle complete. - name: Model Schemas description: > Attach an OpenAPI schema to a release that describes the model's commands, messages, and tracks. Schemas of public models are readable without credentials. - name: Model Access description: | Share a private model with other accounts, one environment at a time. - name: Projects description: > A project is the deploy identity of a model you serve on Reactor. Each model is one project, with its own UUID. Creating a project also creates its `production` environment. - name: Environments description: > An environment is a named deploy target of a project, such as `production` or `staging`. Each write to an environment creates its next revision, and the newest revision is what the environment runs. Environment access grants let another account start sessions on one environment. - name: Revisions description: > A revision is an immutable, numbered snapshot of one environment: its model image, weights, resources, instances, and variables. An environment's revisions, newest first, are its change log. - name: Images description: > Model images are the container images pushed to your model's repository, named by digest. Experimental: this API can change without notice. - name: Weight Sets description: > A weight set is a version-2 weights bundle, named by its set digest. Push the files, then put the manifest. Available when weight sets are enabled for your account. Experimental: this API can change without notice. - name: Tags description: > A tag is a movable name on one model image or one weight set of a project. A release of the model is a read-only tag. Experimental: this API can change without notice. paths: /models/{id}/releases/{release}/weights/finalize: parameters: - $ref: '#/components/parameters/ModelId' - $ref: '#/components/parameters/ModelRelease' post: tags: - Model Weights summary: Finalize a weights upload description: > Completes a release's weights bundle. Send the manifest of every file in the bundle. The server checks that each file was uploaded or can be copied from an earlier release, copies any deduplicated files in the background, and writes the manifest last. The bundle is complete once the manifest is written; `copying` counts the files still being copied. The server computes `total_size` from the entries and ignores the client's value. The body may be at most 4 MiB and list at most 10000 files. A finalize replaces the release's previous bundle. A manifest whose entries all carry an `hf://` `source` names Hugging Face files and uploads nothing; it cannot be mixed with uploaded entries. Callable by an `account_admin` or `developer` of the owning account when model serving is enabled for the account. operationId: finalizeModelWeights requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ModelWeightsFinalizeRequest' example: manifest: version: 1 model_name: your-model release: v1.2.3-gabcdef0 files: - path: model.safetensors size: 4294967296 sha256: >- 9f86d081884c7d659a2feaa0c55ad015a3bf4f1b2b0b822cd15d6c15b0f00a08 - path: tokenizer/vocab.json size: 1048576 sha256: >- 2c26b46b68ffc68ff99b453c1d30413413422d706483bfa0f98a5e886266e7ae responses: '202': description: The bundle is being completed. content: application/json: schema: $ref: '#/components/schemas/ModelWeightsFinalizeResponse' example: path: >- partners/8c8b7e12-a4c1-4627-b0a0-5d2e9f3a7b61/weights/your-model/7b3f1bc2-a4e5-4d78-b9c1-0e6c2f9a1d34/v1.2.3-gabcdef0/manifest.json files: 2 copying: 1 '400': description: > `manifest` is missing, does not parse, or has no files; an entry has an invalid path, is listed twice, or has a `sha256` that is not 64 lowercase hex characters; the sizes overflow; or `hf://` and uploaded entries are mixed. content: application/json: schema: $ref: '#/components/schemas/Error' '401': $ref: '#/components/responses/Unauthorized' '403': description: >- You do not own the model (returned whether or not it exists), or model serving is not enabled for your account. content: application/json: schema: $ref: '#/components/schemas/Error' '404': description: The release is not registered for this model. content: application/json: schema: $ref: '#/components/schemas/Error' '409': description: > The manifest lists more than 10000 files, or a file was neither uploaded nor found for a server-side copy (the message names it; upload it and finalize again). content: application/json: schema: $ref: '#/components/schemas/Error' '413': description: The body is larger than 4 MiB. content: application/json: schema: $ref: '#/components/schemas/Error' '429': description: The bundle is larger than your account's weights bundle quota. content: application/json: schema: $ref: '#/components/schemas/Error' '502': description: >- The manifest could not be written, or Hugging Face could not be read. Retry. content: application/json: schema: $ref: '#/components/schemas/Error' '503': $ref: '#/components/responses/ServiceUnavailable' components: parameters: ModelId: name: id in: path required: true description: >- The model's ID (not its project ID). Find it with `GET /models?name=your-org/your-model`. schema: type: string format: uuid ModelRelease: name: release in: path required: true description: The release tag, such as `v1.2.3-gabcdef0`. schema: type: string example: v1.2.3-gabcdef0 schemas: ModelWeightsFinalizeRequest: type: object required: - manifest properties: manifest: $ref: '#/components/schemas/ModelWeightsManifest' from_release: type: string description: Copy files that were not uploaded from this release only. ModelWeightsFinalizeResponse: type: object required: - path - files - copying properties: path: type: string description: The storage key of the manifest. files: type: integer description: Files in the bundle. copying: type: integer description: Files still being copied in the background. Error: type: object required: - error properties: error: type: string description: >- A stable error code (for example `not_found`) on newer routes, or a sentence on older ones. When `message` is present, branch on `error`. message: type: string description: >- A human-readable explanation. Do not parse it; its wording may change. resource: type: string description: The type of the resource a `not_found` refers to. reason: type: string description: >- A more specific cause for `failed_precondition`, `aborted`, and some `invalid_request` errors. ModelWeightsManifest: type: object required: - files properties: version: type: integer example: 1 model_name: type: string release: type: string files: type: array items: $ref: '#/components/schemas/ModelWeightsFile' total_size: type: integer format: int64 description: Computed by the server from the entries. created_at: type: string format: date-time source_is_dir: type: boolean ModelWeightsFile: type: object required: - path - size - sha256 properties: path: type: string description: Path in the bundle; may include subdirectories. example: tokenizer/vocab.json size: type: integer format: int64 sha256: type: string description: 64 lowercase hex characters. source: type: string description: >- An `hf://org/repo@/` reference for a file on Hugging Face. All entries or none carry it. responses: Unauthorized: description: The credential is missing, invalid, or expired. content: application/json: schema: $ref: '#/components/schemas/Error' ServiceUnavailable: description: A dependency is temporarily unavailable. Retry with backoff. content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: apiKey: type: http scheme: bearer description: >- A Reactor API key (`rk_...`), sent as `Authorization: Bearer rk_...`. Keep it on a server. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.