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ClickSend for AI agents

ClickSend sends SMS, email, and even physical mail from one platform, giving a business a way to reach customers across channels and track results. 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 ClickSendSee the 166 actions ↓
CommunicationUsername and passwordMCP + RESTclicksend.com
AUDIT LOG · CLICKSENDPOLICY: acme-support
09:41:07 · claude · u_8f2read
clicksend.get_lists
Get All Contact Lists✓ allowed · 212ms
09:41:08 · claude · u_8f2read
clicksend.get_lists2
Get Specific Contact List✓ allowed · 164ms
09:41:09 · claude · u_8f2write
clicksend.create_lists
Create Contact List✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
clicksend.delete_lists
Delete Contact List✕ blocked · policy: deny
EVERY CLICKSEND CALL, ON THE RECORD
01 · USE CASES

What agents do in ClickSend.

01

Send an SMS campaign

Create and send an SMS campaign to a contact list for a promotion or reminder.

02

Check account usage

Check a subaccount's usage before deciding whether to top up credit for the month.

03

Send a physical letter

Send a post letter to a customer address, useful for formal notices or mailers.

02 · ACTIONS

166 ClickSend actions, graded by risk.

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

read

52

Look things up. Allowed by default.

  • clicksend.get_lists
    Get All Contact Lists
  • clicksend.get_lists2
    Get Specific Contact List
  • clicksend.get_account
    Get Account Information
  • clicksend.get_numbers
    Get Dedicated Numbers
  • clicksend.get_pricing
    Get Country Pricing
  • clicksend.get_reseller
    Get Reseller Settings
  • clicksend.get_countries
    Get All Countries
  • clicksend.get_timezones
    Get Supported Timezones
  • clicksend.get_voice_lang
    Get Voice Languages
  • clicksend.get_mms_history
    Export MMS History
  • clicksend.get_sms_history
    Get SMS History
  • clicksend.get_sms_inbound
    Get Inbound SMS Messages
  • clicksend.get_subaccounts
    Get All Subaccounts
  • clicksend.get_fax_receipts
    Get Fax Delivery Receipts
  • clicksend.get_lists_export
    Export Contacts List
  • clicksend.get_lists_import
    Import Contacts to List
+ 36 MORE

write

95

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

  • clicksend.create_lists
    Create Contact List
  • clicksend.post_uploads
    Upload File
  • clicksend.update_lists
    Update Contact List
  • clicksend.update_account
    Update Account Information
  • clicksend.create_mms_send
    Send MMS Messages
  • clicksend.create_sms_send
    Send SMS Messages
  • clicksend.update_reseller
    Update Reseller Settings
  • clicksend.post_numbers_buy
    Buy Dedicated Number
  • clicksend.create_sms_inbound
    Create Test Inbound SMS
  • clicksend.create_subaccounts
    Create Subaccount
  • clicksend.update_subaccounts
    Update Subaccount
  • clicksend.create_fax_receipts
    Add Fax Delivery Receipt Webhook
  • clicksend.create_sms_receipts
    Create Test SMS Delivery Receipt
  • clicksend.create_sms_templates
    Create SMS Template
  • clicksend.update_sms_campaigns
    Update SMS Campaign
  • clicksend.create_lists_contacts
    Create Contact in List
+ 79 MORE

destructive

19

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

  • clicksend.delete_lists
    Delete Contact List
  • clicksend.delete_sms_cancel
    Cancel Scheduled SMS
  • clicksend.delete_subaccounts
    Delete Subaccount
  • clicksend.delete_lists_contacts
    Delete Contact from List
  • clicksend.delete_automations_sms_inbound
    Delete Inbound SMS Automation
  • clicksend.delete_lists_remove_opted_out_contacts
    Remove Opted Out Contacts from List
  • clicksend.sms_cancel_all_put
    Cancel All Scheduled SMS
  • clicksend.voice_cancel_all_put
    Cancel All Scheduled Voice Messages
  • clicksend.email_template_delete
    Delete Email Template
  • clicksend.sms_templates_by_template_id_delete
    Delete SMS Template
  • clicksend.sms_email_sms_stripped_string_delete
    Delete Email to SMS Stripped String Rule
  • clicksend.specific_allowed_email_address_delete
    Delete Specific Allowed Email Address
  • clicksend.fax_delivery_receipt_automation_delete
    Delete Fax Delivery Receipt Automation
  • clicksend.sms_delivery_receipt_automation_delete
    Delete SMS Delivery Receipt Automation
  • clicksend.email_delivery_receipt_automation_delete
    Delete Email Delivery Receipt Automation
  • clicksend.voice_delivery_receipt_automation_delete
    Delete Voice Receipt Automation
+ 3 MORE
03 · HOW IT WORKS

ClickSend in three steps.

  1. 01Your users connect ClickSendThey add their ClickSend username and password on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create Contact List” can wait for the user, and “delete Contact List” can be denied outright.
  3. 03Any agent can actYour agent calls ClickSend 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('clicksend', {
  read: 'allow',
  write: 'ask',        // create_lists
  destructive: 'deny',  // delete_lists
})

# 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 ClickSend connects.

Users add their ClickSend username and password 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 ClickSend 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
Username and password
CREDENTIALS
Per-tenant encrypted vault
MODEL SEES
Results only, never credentials
AUDIT LOG
Every call, on every plan
05 · WORKS WITH

Use ClickSend from any agent.

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

More communication apps.

Slack168 actionsMicrosoft Teams174 actionsDiscord28 actionsSlackbot101 actions2chat5 actionsAimTell15 actionsAndroid Texter11 actionsDialpad192 actions
ALL COMMUNICATION APPS →
07 · FAQ

ClickSend and Arc0, answered.

Q01

Can I use ClickSend with Claude, ChatGPT or Cursor?

Yes. Connect ClickSend 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 ClickSend actions you allow.

Q02

How do users connect ClickSend?

Users add their ClickSend username and password 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 ClickSend actions can my agent take?

166 in total: 52 read, 95 write and 19 destructive, such as “create Contact List”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in ClickSend?

Yes. Actions like “delete Contact List” 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 ClickSend too?

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

Get started

Plug ClickSend into your agent.

Your users connect ClickSend once, under your brand. Your agent gets 166 actions behind your policies, with every call on the record.

Connect ClickSendBrowse all apps →

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