> ## Documentation Index > Fetch the complete documentation index at: https://docs.phoneuse.com/llms.txt > Use this file to discover all available pages before exploring further. # Who is driving a device > One read for the question a Control view asks after every gesture: is an agent on this device, is a colleague, and whose lease is it under. `lease` is your organisation's live lease and who inside it holds it, or null; another organisation's lease reads as none, exactly as it does on `GET /v1/leases`. `run` is the run driving the device right now, or null once it has finished. `people` are the people other than you who acted on the device in the last sixty seconds, and `agentLastActionAt` is when an agent last did. It joins three things `devices:read` can already read one route at a time, and adds nothing to them: no lease id, no run token, and never a name. A device your organisation does not own, or one outside your key's narrowing, answers 404 exactly as an id that never existed does. An offline device still answers: this route asks who is driving, not whether the phone is reachable. Hosted deployments only. A local checkout does not mount this route, so calling it there is a 404. ## OpenAPI ````yaml /api/openapi.json get /v1/devices/{deviceId}/driving openapi: 3.1.0 info: title: Phonebase HTTP API version: 0.1.0 summary: >- Every HTTP operation the control plane mounts, generated from the app's own route table. description: >- The control plane exposes two HTTP surfaces, and reading the boundary between them matters more than reading any single endpoint. The CONTROL surface is what your backend and your operators call. It takes a bearer token in the `Authorization` header, and two credential channels resolve to the same authorization context: an OAuth 2.1 access token for interactive clients, or an org scoped API key for headless ones. The DEVICE surface, under `/vrx/{runToken}/v1`, is what a worker calls while executing one run. Its credential is the run token in the url path, and it reads no `Authorization` header at all. Device control itself is not REST. An agent taps, swipes and reads the screen over the Model Context Protocol at `POST /mcp`, one tool call at a time. There is no `POST /v1/devices/{id}/tap`, and if you are looking for one, start with the tool reference instead. Operations marked `"x-phonebase-modes": ["hosted"]` exist only on a hosted deployment; a local checkout does not mount them. servers: - url: '{origin}' description: Your control plane origin. variables: origin: default: https://mcp.phonebase.co enum: - https://mcp.phonebase.co - http://127.0.0.1:8788 description: >- The hosted deployment serves the public origin its metadata document advertises, and that is the default here. Select the loopback entry instead when you are running a local checkout, which serves the port `PORT` names. security: [] tags: - name: Apps description: Save immutable application builds and manage explicit device operations. - name: Managed Proxy description: >- Organization-owned fixed egress resources, independent one-time orders and verified network relationships. - name: Health description: Liveness, unauthenticated. - name: Gateway enrollment description: >- How a new gateway computer trades a one-time enrollment code for its tunnel credential. Unauthenticated: the code is the credential. - name: Gateway releases description: >- What a gateway computer installs: the current edge release of a channel. Called with the gateway's own credential. - name: MCP description: The JSON-RPC endpoint an agent drives devices through. - name: Copilot description: >- Drive a device by chatting. A signed in person's own conversations, streamed. Hosted deployments only. - name: Discovery description: Where to authenticate. Served on hosted deployments only. - name: Runs description: Start, watch and steer a run. - name: API keys description: Mint and revoke headless credentials. Hosted deployments only. - name: Device surface description: What a worker calls with its run token to observe and act. - name: Usage description: Read your org's own receipts and consumption. Hosted deployments only. - name: Devices description: Read the fleet your credential can see. Hosted deployments only. - name: Notifications description: >- What a person needs to know when they are not watching, and which emails they receive. Hosted deployments only. - name: Webhooks description: >- Subscribe your own system to what happens here, and read what was delivered. Hosted deployments only. - name: Provisioning description: >- Whether an organisation is provisioned, and how it becomes so. Hosted deployments only, and both operations answer a declared 503 on a deployment that cannot provision yet. paths: /v1/devices/{deviceId}/driving: get: tags: - Devices summary: Who is driving a device description: >- One read for the question a Control view asks after every gesture: is an agent on this device, is a colleague, and whose lease is it under. `lease` is your organisation's live lease and who inside it holds it, or null; another organisation's lease reads as none, exactly as it does on `GET /v1/leases`. `run` is the run driving the device right now, or null once it has finished. `people` are the people other than you who acted on the device in the last sixty seconds, and `agentLastActionAt` is when an agent last did. It joins three things `devices:read` can already read one route at a time, and adds nothing to them: no lease id, no run token, and never a name. A device your organisation does not own, or one outside your key's narrowing, answers 404 exactly as an id that never existed does. An offline device still answers: this route asks who is driving, not whether the phone is reachable. Hosted deployments only. A local checkout does not mount this route, so calling it there is a 404. operationId: getV1DevicesByDeviceIdDriving parameters: - name: deviceId in: path required: true description: The `deviceId` from a listing. schema: type: string responses: '200': description: Who is driving. content: application/json: schema: $ref: '#/components/schemas/DrivingView' '401': description: No credential, or one that was refused. headers: WWW-Authenticate: description: >- A bearer challenge. On a hosted deployment it names the metadata document to discover the authorization server from, and it adds `error="invalid_token"` when a credential was presented and rejected. schema: type: string content: application/json: schema: $ref: '#/components/schemas/UnauthorizedError' '403': description: Reading who is driving needs `devices:read`. content: application/json: schema: $ref: '#/components/schemas/Error' '404': description: No such device that this credential can see. content: application/json: schema: $ref: '#/components/schemas/Error' '429': description: >- Over the request budget for this caller. Hosted deployments only. Which budget applied depends on whether this request carried an `Authorization` header, not on which endpoint it was aimed at. Wait `Retry-After` seconds and retry the same request: the refusal happens before any work, so nothing was partially applied. See /api/rate-limits. headers: Retry-After: description: >- Whole seconds until one request is available again. Computed from the caller's own remaining allowance, not a fixed constant. schema: type: string RateLimit-Limit: description: >- The budget in effect for this caller class, in requests per minute. schema: type: string RateLimit-Remaining: description: >- Whole requests that were still available when this request was admitted. Zero on a 429. schema: type: string RateLimit-Reset: description: >- Seconds until the allowance is back to full. Longer than `Retry-After`, which is the wait for a single request. schema: type: string RateLimit-Policy: description: The budget and its window, as `;w=60`. schema: type: string content: application/json: schema: $ref: '#/components/schemas/RateLimitedError' '503': description: >- The authentication backend could not be reached. The service fails closed: an infrastructure fault is refused, never waved through. content: application/json: schema: $ref: '#/components/schemas/Error' security: - bearerAuth: [] components: schemas: DrivingView: type: object properties: lease: description: >- Your organisation's live lease on the device and who inside it holds the lease, or null when it holds none. oneOf: - type: object properties: holder: $ref: '#/components/schemas/Actor' expiresAt: type: string format: date-time required: - holder - expiresAt additionalProperties: false - type: 'null' run: description: >- The run driving the device right now, or null. A finished run is not driving. oneOf: - type: object properties: runId: type: string agentRunId: type: string goal: type: string description: >- What the run was asked to accomplish, in the words it was started with. state: type: string enum: - queued - running - needs_user_control - paused - succeeded - failed - canceled description: Where the run is now. stepSeq: type: integer description: Metered steps issued so far. initiator: $ref: '#/components/schemas/Actor' recovery: $ref: '#/components/schemas/RunRecovery' required: - runId - agentRunId - goal - state - stepSeq - initiator additionalProperties: false - type: 'null' people: type: array description: >- People other than you with an action on the device in the last sixty seconds, newest first. Ids, never names: resolve them through your own directory. items: type: object properties: userId: type: string lastActionAt: type: string format: date-time required: - userId - lastActionAt additionalProperties: false agentLastActionAt: type: - string - 'null' format: date-time description: >- When an agent (a run, a key or a copilot) last acted on the device within the same window, or null. required: - lease - run - people - agentLastActionAt additionalProperties: false description: >- Who is driving one device: the lease's holder, the run on it, and the people who acted recently. One read for the question a Control view asks after every gesture. UnauthorizedError: type: object properties: error: type: object properties: code: type: string const: unauthorized description: Always `unauthorized` on this response. reason: type: string enum: - missing_credentials - malformed_credentials - invalid_token - token_expired - wrong_audience - missing_org - missing_org_role - unknown_key - revoked_key - expired_key description: The closed set of ways authentication can fail. hint: type: string description: >- A next step in prose, on the reasons where there is one to give: `revoked_key`, `expired_key`, `missing_org_role`, and `invalid_token` when the account is not a member of the named organization. Absent otherwise, so branch on `reason` and show this if it is there. required: - code - reason additionalProperties: false required: - error additionalProperties: false description: >- A refused credential. `unknown_key` covers both a keyId nobody has and a secret that does not match, because telling those apart would enumerate keys for you. Revocation and expiry are distinguishable, since you owned that key. Error: type: object properties: error: type: object properties: code: type: string enum: - backend_resolution_failed - backend_not_implemented - device_unavailable - device_disconnected - lease_mismatch - lease_required - capability_unsupported - invalid_argument - backend_command_failed - idempotency_conflict - action_outcome_unknown - stale_frame - internal_error - unauthorized - permission_denied - run_not_found - frame_not_found - device_busy - admission_unavailable - checkout_unavailable - checkout_customer_balance - checkout_in_progress - quote_changed - payment_in_progress - out_of_stock - wrong_state - instance_not_served - reverification_required - not_found - receipt_not_found - rate_limited - payload_too_large - origin_not_allowed - api_key_from_browser_origin - key_predates_instance_attribution - org_not_served_by_instance - tenant_binding_unavailable - tenant_binding_unsettled - fleet_at_capacity - forbidden - service_unavailable - invalid_signature - invalid_event - not_settled description: >- The closed set of codes this service answers with on purpose, on MCP tools and REST alike (D152). What each one means and when you get it is on the errors page. message: type: string description: A human readable summary. Do not branch on it, branch on `code`. retryable: type: boolean description: >- Whether re-issuing the same call unchanged is meaningful. It is a property of the occurrence, not of the code, so read the field rather than inferring it. required: - code - message additionalProperties: true description: >- Specific errors add their own fields, such as `deviceId`, `reason` or `capability`. Read the ones you branch on and ignore the rest. required: - error additionalProperties: false description: >- The control surface error envelope. Every non 2xx JSON body on this surface has this shape. RateLimitedError: type: object properties: error: type: object properties: code: type: string const: rate_limited description: Always `rate_limited` on this response. message: type: string description: >- A human readable summary. The numbers are in the headers, not in here. required: - code - message additionalProperties: false required: - error additionalProperties: false description: >- Over the request budget. Raised by the rate limiter before any handler runs, which is why its code is not one of the action codes: nothing was attempted, so no action failed. Actor: type: object properties: kind: type: string enum: - api_key - oauth - dev_token - system - unattributed description: >- Which credential this was. `system` is phonebase itself: a schedule's timer, or phonebase driving a run, and `onBehalfOf` then says for whom; it is never a person. `unattributed` means the record cannot say, which is NOT the same as a positive claim that no key was involved: it is what a row written before this field existed reads as. userId: type: string description: >- The authorization server's subject id of the PERSON, present only when `kind` is `oauth`. It is an id and never a name: resolve it through your own directory. Nothing here stores a name or an email address. apiKeyId: type: string description: >- The key's id, present only when `kind` is `api_key`. The same id `GET /v1/api-keys` lists. viaCopilot: type: boolean description: >- Whether a copilot did this on the named person's behalf. The person stays responsible: a label reads like "Mira Osei via copilot". ALWAYS PRESENT, and false today on every record, because there is no copilot yet. Present and false says so; an absent field would only mean an older server. onBehalfOf: type: object properties: kind: type: string enum: - schedule - user - api_key - dev_token description: >- Whose work it was: `schedule` (a timer fired), `user` or `api_key` (phonebase drove a run that person or key started), or `dev_token` (the local operator). scheduleId: type: string description: The schedule, when `kind` is `schedule`. userId: type: string description: >- The person's subject id, when `kind` is `user`. An id, never a name. apiKeyId: type: string description: The key's id, when `kind` is `api_key`. required: - kind additionalProperties: false description: >- Present exactly when `kind` is `system`: the control plane acted, and this says for whom. Never present on any other kind. required: - kind - viaCopilot additionalProperties: false description: >- WHO. The same shape answers three questions: who took an action (`Receipt.actor`), who is holding a device (`Lease.holder`), and who started a run (`RunView.initiator`). One shape on purpose, so the three can never disagree about what a given credential is called. RunRecovery: type: - object - 'null' description: >- An interrupted hosted run waiting for explicit continuation, or null. Older servers may omit this field. Progress and remaining budget are preserved; no action is replayed automatically. properties: id: type: string format: uuid description: >- This interruption episode. Send it as expectedRecoveryId when continuing. since: type: string format: date-time remainingMs: type: integer minimum: 0 maximum: 9007199254740991 blockedReason: type: - string - 'null' enum: - null - action_unresolved - budget_exhausted description: >- A non-null reason prevents continuation. Reading this record does not settle an unresolved action. required: - id - since - remainingMs - blockedReason additionalProperties: false securitySchemes: bearerAuth: type: http scheme: bearer description: >- The control surface credential. Send `Authorization: Bearer `. Two kinds of token are accepted and they are told apart by shape, not by a separate header. A token beginning `pbk_` is an org scoped API key, whose public half and secret half are generated together and of which only a hash of the secret is ever stored; anything else is treated as an OAuth 2.1 access token and verified against the authorization server's keys. Both resolve to the same context: an org, a principal and a set of scopes. Nothing downstream branches on which channel you used, with one deliberate exception, key management, which requires a signed-in person so that a key can never mint another key. Scopes are enforced when MCP tools are REGISTERED rather than when they are called, so a tool your credential cannot use is absent from `tools/list` rather than refused mid gesture. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.