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Simplero for AI agents

Simplero is a marketing and business platform for course creators and coaches, combining contact lists, email sequences, memberships, and invoicing in one place. 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 SimpleroSee the 19 actions ↓
MarketingAPI keyMCP + RESTsimplero.com
AUDIT LOG · SIMPLEROPOLICY: acme-support
09:41:07 · claude · u_8f2read
simplero.get_lists
Get All Lists✓ allowed · 212ms
09:41:08 · claude · u_8f2read
simplero.get_invoices
Get Invoices✓ allowed · 164ms
09:41:09 · claude · u_8f2write
simplero.create_or_update_contact
Create or Update Contact✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
simplero.remove_administrator
Remove Administrator✕ blocked · policy: deny
EVERY SIMPLERO CALL, ON THE RECORD
01 · USE CASES

What agents do in Simplero.

01

Tag contacts by course progress

Add a tag to a contact who finishes a module, so future emails target only students who reached that point.

02

Check invoice history before replying

Look up a member's invoices to confirm payment status before answering a billing question, without touching the record.

03

Bulk-subscribe a cohort to a list

Subscribe a new batch of students to a mailing list in one action, with a review step before the first email sends.

02 · ACTIONS

19 Simplero actions, graded by risk.

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

read

10

Look things up. Allowed by default.

  • simplero.get_lists
    Get All Lists
  • simplero.get_invoices
    Get Invoices
  • simplero.get_products
    Get Products
  • simplero.get_admin_roles
    Get Admin Roles
  • simplero.get_contact_by_id
    Get Contact By ID
  • simplero.get_administrators
    Get Administrators
  • simplero.find_contact_by_email
    Find Contact By Email
  • simplero.get_administrator_by_id
    Get Administrator By ID
  • simplero.get_async_request_status
    Get Async Request Status
  • simplero.find_subscription_by_email
    Find Subscription By Email

write

6

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

  • simplero.add_tag_to_contact
    Add Tag to Contact
  • simplero.create_or_update_contact
    Create or Update Contact
  • simplero.update_contact_credentials
    Update Contact Credentials
  • simplero.create_or_update_administrator
    Create or Update Administrator
  • simplero.subscribe_to_list
    Subscribe to List
  • simplero.bulk_subscribe_to_list
    Bulk Subscribe to List

destructive

3

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

  • simplero.remove_administrator
    Remove Administrator
  • simplero.remove_tag_from_contact
    Remove Tag from Contact
  • simplero.unsubscribe_from_list
    Unsubscribe From List
03 · HOW IT WORKS

Simplero in three steps.

  1. 01Your users connect SimpleroThey add their Simplero api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create or Update Contact” can wait for the user, and “remove Administrator” can be denied outright.
  3. 03Any agent can actYour agent calls Simplero 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('simplero', {
  read: 'allow',
  write: 'ask',        // create_or_update_contact
  destructive: 'deny',  // remove_administrator
})

# 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 Simplero connects.

Users add their Simplero 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 Simplero 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 Simplero from any agent.

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

More marketing apps.

Meta Ads67 actionsActiveCampaign298 actionsActiveTrail159 actionsAdobe Marketing Agent12 actionsAdtraction22 actionsAdyntel8 actionsAhrefs40 actionsAirOps96 actions
ALL MARKETING APPS →
07 · FAQ

Simplero and Arc0, answered.

Q01

Can I use Simplero with Claude, ChatGPT or Cursor?

Yes. Connect Simplero 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 Simplero actions you allow.

Q02

How do users connect Simplero?

Users add their Simplero 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 Simplero actions can my agent take?

19 in total: 10 read, 6 write and 3 destructive, such as “create or Update Contact”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Simplero?

Yes. Actions like “remove Administrator” 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 Simplero too?

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

Get started

Plug Simplero into your agent.

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

Connect SimpleroBrowse all apps →

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