Get started

Modem for AI agents

Modem turns customer conversations into structured records of topics, people, and companies for analysis and follow-up by support and sales teams. 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 ModemSee the 30 actions ↓
AnalyticsAPI keyMCP + RESTmodem.so
AUDIT LOG · MODEMPOLICY: acme-support
09:41:07 · claude · u_8f2read
modem.list_groups
List Groups✓ allowed · 212ms
09:41:08 · claude · u_8f2read
modem.get_topic
Get Topic✓ allowed · 164ms
09:41:09 · claude · u_8f2write
modem.create_people
Create People✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
modem.merge_people
Merge People Irreversibly✕ blocked · policy: deny
EVERY MODEM CALL, ON THE RECORD
01 · USE CASES

What agents do in Modem.

01

Look up a company's activity

Pull a company's recent activity and history to prepare for a customer call, read-only.

02

Tag people to a company

Add newly identified people to the right company record after a conversation.

03

Block irreversible merges without review

Require approval before merging two company or people records, since Modem merges them irreversibly.

02 · ACTIONS

30 Modem actions, graded by risk.

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

read

20

Look things up. Allowed by default.

  • modem.get_topic
    Get Topic
  • modem.get_person
    Get Person
  • modem.get_channel
    Get Channel
  • modem.get_company
    Get Company
  • modem.list_groups
    List Groups
  • modem.list_people
    List People
  • modem.list_topics
    List and Search Topics
  • modem.list_channels
    List Channels
  • modem.list_companies
    List Companies
  • modem.get_topic_groups
    Get Topic Groups
  • modem.get_topic_people
    Get Topic People
  • modem.get_topic_history
    Get Topic History
  • modem.get_person_history
    Get Person History
  • modem.get_company_history
    Get Company History
  • modem.get_company_activity
    Get Company Activity
  • modem.get_person_identities
    Get Person Identities
+ 4 MORE

write

7

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

  • modem.update_topic
    Update Topic
  • modem.create_people
    Create People
  • modem.update_people
    Update People
  • modem.update_topics
    Update Topics
  • modem.create_companies
    Create Companies
  • modem.update_companies
    Update Companies
  • modem.add_people_to_company
    Add People to Company

destructive

3

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

  • modem.merge_people
    Merge People Irreversibly
  • modem.merge_topics
    Merge Topics Irreversibly
  • modem.merge_companies
    Merge Companies Irreversibly
03 · HOW IT WORKS

Modem in three steps.

  1. 01Your users connect ModemThey add their Modem api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create People” can wait for the user, and “merge People Irreversibly” can be denied outright.
  3. 03Any agent can actYour agent calls Modem 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('modem', {
  read: 'allow',
  write: 'ask',        // create_people
  destructive: 'deny',  // merge_people
})

# 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 Modem connects.

Users add their Modem 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 Modem 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 Modem from any agent.

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

More analytics apps.

Gong58 actionsSerpApi59 actionsPeople Data Labs27 actionsPostHog507 actions21risk8 actionsAkta19 actionsAlpha Vantage56 actionsAmplitude54 actions
ALL ANALYTICS APPS →
07 · FAQ

Modem and Arc0, answered.

Q01

Can I use Modem with Claude, ChatGPT or Cursor?

Yes. Connect Modem 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 Modem actions you allow.

Q02

How do users connect Modem?

Users add their Modem 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 Modem actions can my agent take?

30 in total: 20 read, 7 write and 3 destructive, such as “create People”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Modem?

Yes. Actions like “merge People Irreversibly” 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 Modem too?

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

Get started

Plug Modem into your agent.

Your users connect Modem once, under your brand. Your agent gets 30 actions behind your policies, with every call on the record.

Connect ModemBrowse all apps →

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