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Smartlead for AI agents

Smartlead is a sales engagement platform for running cold email campaigns across many sending accounts, tracking replies and deliverability at scale. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

Connect SmartleadSee the 19 actions ↓
SalesAPI keyMCP + RESTsmartlead.ai
AUDIT LOG · SMARTLEADPOLICY: acme-support
09:41:07 · claude · u_8f2read
smartlead.list_campaigns
List Campaigns✓ allowed · 212ms
09:41:08 · claude · u_8f2read
smartlead.get_campaign
Get Campaign✓ allowed · 164ms
09:41:09 · claude · u_8f2write
smartlead.create_campaign
Create Draft Campaign✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
smartlead.delete_campaign
Delete Campaign✕ blocked · policy: deny
EVERY SMARTLEAD CALL, ON THE RECORD
01 · USE CASES

What agents do in Smartlead.

01

Check campaign performance before scaling

Get a campaign's stats to confirm reply and bounce rates before adding more prospects to it.

02

List replies needing a response

List inbox replies across campaigns so a rep can see who responded before drafting a follow-up.

03

Confirm before deleting a campaign

Review a campaign's details and require confirmation before deleting it, since the action removes its history and schedule.

02 · ACTIONS

19 Smartlead actions, graded by risk.

Every Smartlead action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

15

Look things up. Allowed by default.

  • smartlead.get_campaign
    Get Campaign
  • smartlead.get_campaigns
    Get Campaigns
  • smartlead.list_campaigns
    List Campaigns
  • smartlead.get_delivery_test
    Get Smart Delivery Test
  • smartlead.get_prospect_usage
    Get Smart Prospect Usage
  • smartlead.list_inbox_replies
    List Inbox Replies
  • smartlead.list_delivery_tests
    List Smart Delivery Tests
  • smartlead.list_email_accounts
    List Email Accounts
  • smartlead.list_sender_vendors
    List Smart Senders Vendors
  • smartlead.list_delivery_folders
    List Smart Delivery Folders
  • smartlead.list_purchased_domains
    List Purchased Smart Senders Domains
  • smartlead.list_prospect_industries
    List Smart Prospect Industries
  • smartlead.search_available_domains
    Search Available Smart Senders Domains
  • smartlead.search_prospect_contacts
    Search Smart Prospect Contacts (Consumes Credits)
  • smartlead.list_saved_prospect_searches
    List Saved Smart Prospect Searches

write

2

Create and change things. Allow, or ask the user first.

  • smartlead.create_campaign
    Create Draft Campaign
  • smartlead.create_delivery_folder
    Create Smart Delivery Folder

destructive

2

Delete, cancel or archive. Ask first, or deny outright.

  • smartlead.delete_campaign
    Delete Campaign
  • smartlead.delete_delivery_folder
    Delete Smart Delivery Folder
03 · HOW IT WORKS

Smartlead in three steps.

  1. 01Your users connect SmartleadThey add their Smartlead api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create Draft Campaign” can wait for the user, and “delete Campaign” can be denied outright.
  3. 03Any agent can actYour agent calls Smartlead through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
POLICY.TS
await arc0.policies.set('smartlead', {
  read: 'allow',
  write: 'ask',        // create_campaign
  destructive: 'deny',  // delete_campaign
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2
04 · AUTH AND DATA

How Smartlead connects.

Users add their Smartlead api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Smartlead connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH
API key
CREDENTIALS
Per-tenant encrypted vault
MODEL SEES
Results only, never credentials
AUDIT LOG
Every call, on every plan
05 · WORKS WITH

Use Smartlead from any agent.

Claude
ChatGPT
Cursor
Codex
VS Code
OpenAI Agents SDK
Claude Agent SDK
Vercel AI SDK
Mastra
LangGraph
06 · RELATED

More sales apps.

LeadMagic109 actionsSpecific18 actionsExtrovert15 actionsEnrich14 actionsVibe Prospecting14 actionsPredictLeads11 actionsExplorium10 actionsMinelead.io10 actions
ALL SALES APPS →
07 · FAQ

Smartlead and Arc0, answered.

Q01

Can I use Smartlead with Claude, ChatGPT or Cursor?

Yes. Connect Smartlead to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Smartlead actions you allow.

Q02

How do users connect Smartlead?

Users add their Smartlead api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Smartlead actions can my agent take?

19 in total: 15 read, 2 write and 2 destructive, such as “create Draft Campaign”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Smartlead?

Yes. Actions like “delete Campaign” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Smartlead too?

Yes. The same Smartlead connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Smartlead into your agent.

Your users connect Smartlead once, under your brand. Your agent gets 19 actions behind your policies, with every call on the record.

Connect SmartleadBrowse all apps →

Free to build · MCP + REST · Audit log on every plan