Lewis API Platform

Your computer agent,
now an API.

Lewis operates on a real computer. Create a task over REST, Lewis executes it on the desktop, and you stream the results back — scoped, metered, and audit-logged.

Get your API key Read the docs

sk_lewis_: 256-bit scoped keys
SSE: live event streaming
1 credit: per task, prepaid
50 / mo: free tasks included

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Manage API keys, tasks, and usage.

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Infrastructure

Everything between your code and Lewis, handled.

Scoped API keys

256-bit sk_lewis_ keys with granular scopes, hash-only storage, and instant revocation.

Real-time events

Stream plan, action, and result events over SSE while Lewis works on the desktop.

Usage metering

Per-key analytics, daily rollups, rate-limit headers, and predictable prepaid credits.

Built for teams

Organizations with SSO, member roles, and shared billing. Enterprise-ready from day one.

API

A small surface,
built around one loop.

Create a task, stream its events, read the result. Six endpoints, consistent errors, cursor pagination, idempotency keys.

Full reference

POST/v1/tasksCreate and dispatch a task to Lewis GET/v1/tasks/{id}Retrieve status, progress, and result GET/v1/tasks/{id}/eventsTask timeline — JSON or SSE stream POST/v1/tasks/{id}/cancelCancel a running task GET/v1/agentsList connected agents and status GET/v1/usageDaily usage rollups

create-task.shbash

$ curl -X POST https://platform.lewisos.com/api/v1/tasks \
    -H "Authorization: Bearer sk_lewis_..." \
    -d '{"prompt": "Pull this week's sales numbers
                and draft the summary email"}'

{
  "id": "task_SBupMFQopyKrghk1xLOw",
  "status": "dispatched",
  "progress": { ... }
}

Start building in minutes.

50 free tasks every month. No credit card required — create a key and dispatch your first task now.

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Your computer agent,now an API.