@floomhq/workeros

Workeros CLI + MCP

Workeros lets agents create, update, run, watch, and delete worker automations through an HTTP MCP endpoint backed by the Workeros API. The package installs into Claude Code, Cursor, VS Code, Windsurf, Continue, or any harness that accepts an MCP HTTP or stdio server entry.

Workeros ships as a single npm package that exposes:

• workeros CLI - login, workspaces, workers, run, runs, secrets, mcp, whoami, logout, plus an install shortcut that wires the MCP server into Claude Code / Cursor / Continue. floom remains a compatibility alias for older installs.
• HTTP MCP endpoint - workeros mcp install writes an HTTP transport entry (url + headers) pointing at /mcp-tools/serve on the Workeros API. No local subprocess is required.
• workeros-mcp stdio server - legacy stdio path; still works when run directly as npx -p @floomhq/workeros workeros-mcp (or node dist/server.js). Use this for harnesses that do not support HTTP MCP transport.

The CLI targets local, self-hosted, and hosted deployments:

Mode	API base	Auth	Workspaces
Self-hosted (default)	http://localhost:8000 or your API URL	x-floom-secret when FLOOM_SECRET is set	local workspace
Hosted	your hosted API URL	bearer token or hosted login flow, X-Workeros-Workspace header	multi-workspace

Self-Hosted Quickstart

npm i -g @floomhq/workeros@latest
workeros login --api http://localhost:8000
workeros workers list
workeros run <worker-id> --input key=value

If your local API runs without FLOOM_SECRET, login is not required for basic local development. For a protected self-hosted API, set FLOOM_SECRET on the backend and use the matching secret when the CLI prompts.

Credentials live at ~/.config/workeros/credentials.json (mode 0600). workeros logout clears them.

MCP install

npx -y @floomhq/workeros mcp install

Auto-detects the first existing config file. To target a specific harness:

workeros mcp install --target claude     # ~/.claude/settings.json
workeros mcp install --target cursor     # ~/.cursor/mcp.json
workeros mcp install --target vscode     # .vscode/mcp.json  (workspace-local)
workeros mcp install --target windsurf   # ~/.codeium/windsurf/mcp_config.json
workeros mcp install --target continue   # ~/.continue/.continuerc.json
workeros mcp install --target generic    # prints JSON snippet for manual paste

Switching the active context

workeros workspace list             # all workspaces your credentials can access, active marked with *
workeros workspace switch <name>    # by name or id; fails (exit 1) if not authenticated for it
workeros mcp list                   # configured MCP servers (connections of kind "mcp")
workeros mcp switch <name>          # set the active MCP server by label
workeros mcp test [name]            # live probe (initialize + tools/list); defaults to the active server

Switches persist in ~/.config/workeros/credentials.json and apply to every later CLI invocation. workspaces/use remain as aliases of workspace/switch. Workspace switching works in both modes: hosted deployments scope by membership, self-hosted deployments scope local workspaces via the x-workeros-workspace header (which the CLI now sends on every request, and mcp install bakes into the client config - re-run mcp install after switching to repoint installed MCP clients).

Re-running the installer updates the existing workeros entry instead of duplicating it.

Supported targets

Target	Config file written	Config shape
claude	~/.claude/settings.json	{ mcpServers: { workeros: {...} } }
cursor	~/.cursor/mcp.json	{ mcpServers: { workeros: {...} } }
vscode	.vscode/mcp.json (workspace)	{ mcpServers: { workeros: {...} } }
windsurf	~/.codeium/windsurf/mcp_config.json	{ mcpServers: { workeros: {...} } }
continue	~/.continue/.continuerc.json	{ mcpServers: [ { name:"workeros", ... } ] }
generic	(no file)	prints JSON snippet to stdout

All targets write HTTP MCP transport (url + headers) - no local subprocess is spawned. The MCP endpoint is hosted on the Workeros API server.

{
  "mcpServers": {
    "workeros": {
      "url": "http://localhost:8000/mcp-tools/serve",
      "headers": {
        "x-floom-secret": "<WORKEROS_API_SECRET>"
      }
    }
  }
}

HTTP transport (recommended - written by workeros mcp install)

Claude Code / Cursor / VS Code / Windsurf (mcpServers object shape):

{
  "mcpServers": {
    "workeros": {
      "url": "http://localhost:8000/mcp-tools/serve",
      "headers": {
        "x-floom-secret": "<WORKEROS_API_SECRET>"
      }
    }
  }
}

The published binary stays connected for that handshake when launched as npx -p @floomhq/workeros workeros-mcp.

Manual config

Claude Code / Cursor / VS Code / Windsurf (mcpServers object shape, HTTP MCP):

{
  "mcpServers": {
    "workeros": {
      "url": "http://localhost:8000/mcp-tools/serve",
      "headers": {
        "x-floom-secret": "<WORKEROS_API_SECRET>"
      }
    }
  }
}

Continue (~/.continue/.continuerc.json, array shape, HTTP MCP):

{
  "mcpServers": [
    {
      "name": "workeros",
      "url": "http://localhost:8000/mcp-tools/serve",
      "headers": {
        "x-floom-secret": "<WORKEROS_API_SECRET>"
      }
    }
  ]
}

Replace http://localhost:8000 with your deployed API base URL when connecting to a remote self-hosted instance.

Stdio transport (fallback - for harnesses that do not support HTTP MCP)

{
  "mcpServers": {
    "workeros": {
      "command": "npx",
      "args": ["-p", "@floomhq/workeros", "workeros-mcp"],
      "env": {
        "WORKEROS_API_SECRET": "<WORKEROS_API_SECRET>",
        "WORKEROS_API_BASE": "http://localhost:8000"
      }
    }
  }
}

Or launch directly if the package is already installed: node /path/to/@floomhq/workeros/dist/server.js.

Worker bundle CLI flow

Use this path when a fresh agent has a local workers/<id>/ folder and needs a repeatable create/edit/deploy loop:

workeros login
workeros workers validate ./workers/<id>
workeros workers push ./workers/<id>
workeros run <id> --inputs-file docs/workers/inputs/<id>.json
workeros workers info <id>

workers validate is offline. It checks that worker.yml parses, the entry file exists, the runtime is declared, and E2B Composio workers do not use the local composio execute CLI. For structured connection declarations it also verifies that referenced tool slugs are covered by allowed_tools.

workers push uses POST /workers for new workers and PUT /workers/{id} for existing workers. If an older API returns 404/405 for source updates, upgrade the API before editing workers in place.

Tools

For full worked examples per tool, end-to-end recipes (deploy a worker from prompt, port a Claude skill, schedule + webhook + composio triggers), and the agent draft contract, see docs/AGENT-COOKBOOK.md.

Workers

Tool	Description
workers.list	List available Workeros workers.
workers.get	Read one worker, including config and recent run metadata.
workers.create	Create a script-mode worker from worker_yml and run_py.
workers.update	Patch trigger, cron, default inputs, capabilities, or rotate webhook secret.
workers.delete	Delete a worker and dependent run data.
workers.run	Start a manual worker run with input values.
workers.logs	Fetch cross-run log history, filterable by level and time.
workers.stats	7-day run statistics for a specific worker.
workers.timeseries	Daily run counts and success/failure trend over N days.
workers.sample_input	Get example input values for a worker's fields.
workers.archive	Archive a worker (reversible).
workers.restore	Restore an archived worker to active status.
workers.reload	Reload all workers from disk on a self-hosted deployment.
workers.versions	List saved versions of a worker.
workers.rollback	Restore a worker to a previous version.
workers.alerts.list	List configured alerts for a worker.
workers.alerts.create	Add a failure/approval/success alert via webhook or email.
workers.alerts.delete	Remove a worker alert.

Runs

Tool	Description
runs.list	List runs, optionally filtered by worker id or status.
runs.get	Read one run with logs, outputs, artifacts, and approval state.
runs.watch	Stream SSE run events until a terminal state.
runs.cancel	Cancel an in-progress run.
runs.replay	Replay a completed or failed run with the same inputs.

Approvals

Tool	Description
approvals.list	List pending approval requests across all workers.
approvals.approve	Approve a pending run so it continues executing.
approvals.reject	Reject a pending run, stopping it.

Secrets

Tool	Description
secrets.list	List secret names and status.
secrets.set	Create or update a secret value.
secrets.delete	Delete a secret.
secrets.test	Verify a secret exists without revealing its value.

Connections

Tool	Description
connections.list	List configured app connections.
connections.add_mcp	Add an MCP server connection.
connections.delete	Remove a connection.
connections.status	Check connection health and auth status.
connections.test	Run a live connectivity check on a connection.

Contexts (Brain Packs)

Tool	Description
contexts.list	List context folders.
contexts.create	Create a new brain pack context.
contexts.delete	Delete a brain pack and all its files.
contexts.read	Read a file from a context.
contexts.write	Create or update a file in a context.
contexts.upload	Upload a binary file to a context.
contexts.delete_file	Delete a specific file from a context.
contexts.versions	List saved versions of a brain pack.
contexts.rollback	Restore a brain pack to a previous version.

Triggers & Integrations

Tool	Description
triggers.list	List integration triggers, globally or per worker/app.
integrations.catalog	Browse all available integrations.

Workspace

Tool	Description
workspace.chat	Send a message to the workspace agent and get a reply.
workspace.instructions.get	Read current workspace agent system prompt.
workspace.instructions.set	Update workspace agent system prompt.
workspace.versions	List version history of workspace instructions.
workspace.rollback	Restore workspace instructions to a previous version.

Conversations

Tool	Description
conversations.list	List past workspace agent conversations.
conversations.get	Retrieve a full conversation by ID.

System

Tool	Description
system.overview	Full workspace dashboard - health, runs, pending approvals, alerts.
system.stats	7-day aggregate run statistics across the whole workspace.
system.info	Platform version and configuration flags.
system.alerts	Active system-wide alerts.

Quick example - write + deploy + verify a worker in one MCP session

// 1. Create
await workers.create({
  worker_yml: `
schema_version: "0.3"
name: text-summarizer
title: Text Summarizer
description: Summarizes any text in 3 bullets using GPT-4.1.
entrypoint: run.py
exec:
  command: python run.py
  runtime: python311
  runner: e2b
  entry: run.py
  inputs:
    - { name: text, kind: scalar, type: textarea, required: true, label: Text }
  outputs:
    - { name: summary, kind: file, media_type: text/markdown, path: out/summary.md, required: true, label: Summary }
  secrets: [OPENAI_API_KEY]
capabilities:
  secrets: [OPENAI_API_KEY]
  network: { egress: true }
trigger: { type: manual }
`,
  run_py: `
def run(inputs, context):
    client = context.openai()
    r = client.chat.completions.create(
        model="gpt-4.1-mini",
        messages=[
            {"role": "system", "content": "Summarize in 3 bullets."},
            {"role": "user", "content": inputs["text"]},
        ],
    )
    summary = r.choices[0].message.content
    context.write_output("summary", summary)
    return {"summary": summary}
`,
});

// 2. Run
const { run_id } = await workers.run({
  id: "text-summarizer",
  inputs: { text: "Lorem ipsum dolor sit amet..." },
});

// 3. Watch until terminal
const watched = await runs.watch({ id: run_id });
console.log(watched.status);

// 4. Verify
const { run } = await runs.get({ id: run_id });
console.log(run.status); // "succeeded"
console.log(run.output?.summary);

See docs/AGENT-COOKBOOK.md section 1 for the full annotated walkthrough plus six more recipes (agent mode, Gmail trigger, cron schedule, webhook, approval gate, claude-skill port).