Postalytics for AI agents
Postalytics automates direct mail with deep CRM integration, making postcards and letters behave like a digital marketing channel. Marketing teams use it to run direct mail alongside digital campaigns. 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.
What agents do in Postalytics.
Create a new direct mail campaign
Launch a new postcard or letter campaign targeting a contact list.
Check a suppression list read-only
Look up who is on a suppression list before sending a new mail campaign.
Delete a campaign with approval
Remove a scheduled campaign only after a marketing lead confirms it should be canceled.
24 Postalytics actions, graded by risk.
Every Postalytics action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
11Look things up. Allowed by default.
- postalytics.get_all_flowsGet All Flows
- postalytics.get_my_accountGet My Account
- postalytics.get_all_webhooksGet All Webhooks
- postalytics.get_integrationsGet Integrations
- postalytics.get_suppression_listGet Suppression List
- postalytics.get_all_contact_listsGet All Contact Lists
- postalytics.get_suppression_listsGet Suppression Lists
- postalytics.get_all_drip_campaignsGet All Drip Campaigns
- postalytics.get_all_contacts_on_a_listGet All Contacts on a List
- postalytics.get_suppression_list_contactGet Suppression List Contact
- postalytics.get_suppression_list_contactsGet Suppression List Contacts
write
9Create and change things. Allow, or ask the user first.
- postalytics.add_accountAdd Account
- postalytics.add_contactAdd Contact
- postalytics.create_webhookCreate Webhook
- postalytics.update_accountUpdate Account
- postalytics.create_templateCreate Template
- postalytics.create_new_campaignCreate New Campaign
- postalytics.create_suppression_listCreate Suppression List
- postalytics.create_suppression_list_contactCreate Suppression List Contact
- postalytics.update_suppression_list_contactUpdate Suppression List Contact
destructive
4Delete, cancel or archive. Ask first, or deny outright.
- postalytics.delete_accountDelete Account
- postalytics.delete_campaignDelete Campaign
- postalytics.delete_suppression_listDelete Suppression List
- postalytics.delete_suppression_list_contactDelete Suppression List Contact
Postalytics in three steps.
- 01Your users connect PostalyticsThey add their Postalytics api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, writes like “create Webhook” can wait for the user, and “delete Account” can be denied outright.
- 03Any agent can actYour agent calls Postalytics through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('postalytics', { read: 'allow', write: 'ask', // create_webhook destructive: 'deny', // delete_account }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How Postalytics connects.
Users add their Postalytics 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 Postalytics 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
Use Postalytics from any agent.
ClaudeChatGPTCursor
Codex
VS CodeOpenAI Agents SDKClaude Agent SDK
Vercel AI SDK
Mastra
LangGraph
Postalytics and Arc0, answered.
Can I use Postalytics with Claude, ChatGPT or Cursor?
Yes. Connect Postalytics 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 Postalytics actions you allow.
How do users connect Postalytics?
Users add their Postalytics 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.
Which Postalytics actions can my agent take?
24 in total: 11 read, 9 write and 4 destructive, such as “create Webhook”. Your policies decide which of them each agent may call.
Can I stop my agent from deleting things in Postalytics?
Yes. Actions like “delete Account” 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.
Can my own backend call Postalytics too?
Yes. The same Postalytics connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug Postalytics into your agent.
Your users connect Postalytics once, under your brand. Your agent gets 24 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan