Contacts+ for AI agents

Contacts+ manages personal contact and tag data, giving people a synced address book they can search and organize across their accounts. 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 Contacts+See the 13 actions ↓

CRMOAuth 2.0MCP + RESTcontactsplus.com

AUDIT LOG · CONTACTS+POLICY: acme-support

09:41:07 · claude · u_8f2read

contacts.list_tags

List Tags✓ allowed · 212ms

09:41:08 · claude · u_8f2read

contacts.get_tags

Get Tags✓ allowed · 164ms

09:41:09 · claude · u_8f2write

contacts.create_tag

Create Tag✓ approved · approved by user

09:41:12 · claude · u_8f2destructive

contacts.delete_tag

Delete Tag✕ blocked · policy: deny

EVERY CONTACTS+ CALL, ON THE RECORD

01 · USE CASES

What agents do in Contacts+.

Search for a contact

Search contacts by name or company before adding a new interaction to their record.

Add a tag to a contact

Update a contact's tags to keep them organized under the right group.

Confirm before deleting a contact

Confirm before deleting a contact, since their tags and details are removed permanently.

02 · ACTIONS

13 Contacts+ actions, graded by risk.

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

read

Look things up. Allowed by default.

contacts.get_tags
Get Tags
contacts.list_tags
List Tags
contacts.get_account
Get Account
contacts.get_contacts
Get Contacts
contacts.list_contacts
List Contacts
contacts.search_contacts
Search Contacts

write

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

contacts.create_tag
Create Tag
contacts.update_tag
Update Tag
contacts.create_contact
Create Contact
contacts.update_contact
Update Contact
contacts.update_contact_tags
Update Contact Tags

destructive

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

contacts.delete_tag
Delete Tag
contacts.delete_contact
Delete Contact

03 · HOW IT WORKS

Contacts+ in three steps.

01Your users connect Contacts+They sign in to Contacts+ on Arc0 Connect, under your brand, and approve the access you ask for.
02You set the rulesReads run, writes like “create Tag” can wait for the user, and “delete Tag” can be denied outright.
03Any agent can actYour agent calls Contacts+ 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('contacts', {
  read: 'allow',
  write: 'ask',        // create_tag
  destructive: 'deny',  // delete_tag
})

# 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 Contacts+ connects.

Users sign in to Contacts+ on Arc0 Connect and approve the scopes you request. Build with Arc0’s Contacts+ OAuth app, or bring your own so the Contacts+ consent screen names you. Tokens refresh automatically, and you can export them whenever you want.

The same Contacts+ 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: OAuth 2.0
CREDENTIALS: Per-tenant encrypted vault
MODEL SEES: Results only, never credentials
AUDIT LOG: Every call, on every plan

05 · WORKS WITH

Use Contacts+ from any agent.

Claude

ChatGPT

Cursor

Codex

VS Code

OpenAI Agents SDK

Claude Agent SDK

Vercel AI SDK

Mastra

LangGraph

06 · RELATED

More crm apps.

Salesforce224 actions

07 · FAQ

Contacts+ and Arc0, answered.

Q01

Can I use Contacts+ with Claude, ChatGPT or Cursor?

Yes. Connect Contacts+ 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 Contacts+ actions you allow.

Q02

How do users connect Contacts+?

Q03

Which Contacts+ actions can my agent take?

13 in total: 6 read, 5 write and 2 destructive, such as “create Tag”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Contacts+?

Yes. Actions like “delete Tag” 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 Contacts+ too?

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

Get started

Plug Contacts+ into your agent.

Your users connect Contacts+ once, under your brand. Your agent gets 13 actions behind your policies, with every call on the record.

Connect Contacts+Browse all apps →

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