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Max CLI

Open-source command-line client for the Max lead intelligence API, built for developers and AI agents to manage signals and leads.

Open source

What is Max CLI?

Max CLI, listed here as Signals CLI, is an MIT-licensed command-line client from Sortlist for the Max lead intelligence API. It lets developers and AI agents monitor sources such as LinkedIn and funding databases and pull in newly discovered leads without leaving the terminal. The model has four parts: a read-only catalog of signal types, businesses that carry a website, description and ideal customer profile, subscriptions that activate a signal with its own configuration, and leads, which are enriched profiles with name, company, LinkedIn URL, email and phone. You can create a business from just a website URL and let the tool analyze its profile, pause or resume scanning per subscription, and register webhooks that receive an HTTP POST for each new lead, optionally signed with HMAC-SHA256. Every command returns JSON for use with jq, and a SKILL.md file teaches coding agents like Cursor and Claude Code the commands. The CLI installs through npm, and the vendor does not list pricing for the Max API behind it.

Use cases

  • Discover leads from LinkedIn signals
  • Monitor funding databases for prospects
  • Push new leads to a webhook
  • Script lead workflows with jq
  • Let AI agents manage lead monitoring
  • Create a business profile from a website

Who it's for

  • Developers
  • Sales and growth teams
  • AI agent builders
  • Lead generation specialists

Why use Max CLI

  • Every command prints JSON, which makes it easy to pipe leads into scripts and other tools.
  • The included skill file lets AI coding agents run the CLI without extra prompting.
  • Webhooks deliver new leads in real time instead of requiring polling.
  • Creating a business from a website saves manual setup of its ideal customer profile.
  • The client is open source under the MIT license.

Max CLI features

  • Catalog of signal types via signals:list
  • Business creation with automatic ICP analysis from a website
  • Subscriptions with pause, resume and delete
  • Paginated lead listing and detail views
  • Webhooks with HMAC-SHA256 signature verification
  • JSON output on every command
  • API key login stored in a local config file
  • SKILL.md for AI coding agents
  • Team-scoped API keys

Max CLI integrations

  • LinkedIn
  • Cursor
  • Claude Code
  • OpenClaw

How to get started with Max CLI

  1. Install the client with npm install -g sortlist-max-cli.
  2. Run max login and paste an API key from Settings > API Keys in your dashboard.
  3. Create a business from a website, then browse the signal catalog.
  4. Create a subscription for a signal, such as LinkedIn company engagers, with its configuration.
  5. List leads or register a webhook to receive new ones as they appear.

Max CLI limitations

  • Requires an API key for the Max service
  • API requests are rate limited to 60 requests per minute
  • Pricing for the Max API is not stated in the repository
  • Lead listings return at most 100 results per page

Max CLI pricing

Max CLI is open source, so you can use and self-host it for free.

Prices can change and may vary by country or exclude tax. Check the official pricing page.

Max CLI alternatives

The main Max CLI alternatives listed on Debuly are Clearbit, Common Room, Overloop CLI, Topo, AISquared and Amazon Bedrock Agents. The table compares pricing and platforms; order is A–Z.

Max CLI compared with its alternatives
ToolPricingStarting pricePlatforms
Max CLIOpen source—CLI, API
AISquaredContact sales—Web, Self-hosted
Amazon Bedrock AgentsPaid—Web, API
ClearbitPricing unknown—Web, API
Common RoomContact sales$2,500/moWeb, Chrome extension, API
Overloop CLIOpen source—CLI
TopoFree trial$89/moWeb, Chrome extension, API
  1. AISquared

    Enterprise AI platform for building, deploying and governing agentic workflows, RAG chat and data apps across existing business systems.

  2. Amazon Bedrock Agents

    AWS service for building agents that use foundation models, company APIs and data to complete multistep tasks, with memory and multi-agent teams.

  3. Clearbit

    B2B data enrichment, website visitor reveal and form shortening, now Clearbit by HubSpot and closed to new standalone buyers.

  4. Common Room

    Buyer-intelligence platform that merges signals, enrichment and AI research so sales teams know who to contact and why.

  5. Overloop CLI

    Beta MIT-licensed command-line tool for the Overloop API v2 that lets developers and AI agents run sales outreach from a terminal.

  6. Topo

    AI outbound sales platform with a built-in agent for buying signals, lead search, enrichment and multichannel sequences.

Max CLI FAQ

What is Signals CLI (Max CLI)?

It is a command-line client for the Max lead intelligence API from Sortlist. Developers and AI agents use it to monitor sources, create subscriptions and fetch leads.

How much does Max CLI cost?

The CLI is open source under the MIT license and free to install. It needs an API key for the Max service, and the repository does not state what that service costs.

Is Max CLI open source?

Yes. The repository is MIT licensed and published on GitHub as sortlist/max-cli, with the package on npm as sortlist-max-cli.

Does it have an API?

The CLI wraps the Max REST API, and full API documentation is linked from the repository. API keys are scoped to your team.

Can AI agents use it?

Yes. You can install the Max skill with npx skills add sortlist/max-cli so agents such as Cursor and Claude Code learn the commands.

How do I get notified of new leads?

Create a webhook with max webhooks:create and a URL. Max sends an HTTP POST for each new lead, and you can add a secret for HMAC-SHA256 verification.

What are alternatives to Max CLI?

Alternatives for lead discovery and signal monitoring include Apollo, Clay, Clearbit, ZoomInfo and Common Room.

Sources & verification

Facts on this page come from the official sources below, each with the date we read it. Written by Debuly; the vendor did not review this page.

SourceTypeAccessed
github.com/sortlist/max-cliofficial

Image credits

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