Reteno MCP server for AI agents and assistants

Securely connect your AI agents and chatbots (Claude, ChatGPT, Cursor, etc) with Reteno MCP or direct API to manage contacts, track behavioral events, query campaigns, and coordinate customer messaging through natural language.

Reteno logoReteno
Api Key

Reteno is a customer engagement platform for contacts, events, campaigns, and omnichannel messaging. Use it to personalize customer journeys and reach users across email, mobile, and more.

14 Tools

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Type what you want done — sign in and watch it run live in the Tool Router playground.

TOOL ROUTER PLAYGROUND
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TOOLS

Supported Tools

Every Reteno action and event your agent gets out of the box.

Get Account Balance

Return monetary balance, credit limit, currency, and remaining prepaid email and SMS quotas for the connected Reteno account.

Get Account Info

Return the Reteno organization and API user associated with the connected account.

Get Contact

Return the full Reteno profile for one contact identified by its internal contact ID.

Get Contact Import Status

Return the current state and resulting contact IDs for an asynchronous Reteno contact import started by Upsert Contacts.

List Address Books

Return Reteno contact address books and their assigned field groups and fields.

List Contact Fields

List custom contact fields, their field IDs and keys, data types, allowed values, and validation metadata.

List Contact Messages

Return one page of a contact's email, SMS, push, web push, or App Inbox message history for a required date range.

List Contacts

List one bounded page of Reteno contacts.

List Segments

Search Reteno contact segments by name and return one bounded page with segment IDs and types.

List Subscription Categories

List the organization's contact subscription categories and the keys used to manage communication preferences.

List Workflows

Search Reteno automation workflows by name and return their IDs, status, and tags.

Track Event

Send one non-retractable backend event for an identified contact.

Upsert Contact

Create or update a Reteno contact in real time and return its Reteno contact ID.

Upsert Contacts

Create or update 1-3000 Reteno contacts asynchronously using one explicit deduplication strategy.

SETUP GUIDE

Connect Reteno MCP Tool with your Agent

1

Install Composio

typescript
npm install @composio/core ai @ai-sdk/mcp @ai-sdk/openai
Install the Composio SDK and your agent framework
2

Create a session with MCP enabled

typescript
import { Composio } from "@composio/core";

const composio = new Composio();
const { mcp } = await composio.create("your-user-id", {
  toolkits: ["reteno"],
  mcp: true,
});
Create a session scoped to Reteno and read its MCP URL and headers
3

Connect your agent to the MCP server

typescript
import { createMCPClient } from "@ai-sdk/mcp";
import { openai } from "@ai-sdk/openai";
import { generateText, stepCountIs } from "ai";

const client = await createMCPClient({
  transport: { type: "http", url: mcp.url, headers: mcp.headers },
});

const { text } = await generateText({
  model: openai("gpt-5.6-sol"),
  tools: await client.tools(),
  prompt: "Create or update a Reteno contact for jane@example.com with the name Jane Doe and tag webinar-lead",
  stopWhen: stepCountIs(10),
});

console.log(text);
await client.close();
Pass the session's MCP URL and headers to your agent and run a Reteno request
SETUP GUIDE

Connect Reteno API Tool with your Agent

1

Install Composio

typescript
npm install @composio/core @composio/openai openai
Install the Composio SDK, the OpenAI provider, and the OpenAI SDK
2

Create a Composio session

typescript
import OpenAI from "openai";
import { Composio } from "@composio/core";
import { OpenAIResponsesProvider } from "@composio/openai";

const composio = new Composio({ provider: new OpenAIResponsesProvider() });
const client = new OpenAI();

const session = await composio.create("your-user-id", { toolkits: ["reteno"] });
const tools = await session.tools();
Initialize Composio with the OpenAI Responses provider and create a session scoped to Reteno
3

Run Reteno tools with your agent

typescript
let response = await client.responses.create({
  model: "gpt-5.6-sol",
  tools,
  input: [{ role: "user", content: "Create or update a Reteno contact for jane@example.com with the name Jane Doe and tag webinar-lead" }],
});

while (response.output.some((o) => o.type === "function_call")) {
  const outputs = await composio.provider.handleToolCalls(session, response.output);
  response = await client.responses.create({
    model: "gpt-5.6-sol",
    tools,
    previous_response_id: response.id,
    input: outputs,
  });
}

console.log(response.output_text);
Send a request, execute the Reteno tool calls through the session, and print the final answer

Why Use Composio?

AI Native Reteno Integration

  • Supports both Reteno MCP and direct API based integrations
  • Structured, LLM-friendly schemas for reliable contact, event, and campaign actions
  • Rich coverage for reading, writing, and querying your Reteno engagement data

Managed Auth

  • Secure API key handling without hard-coding Reteno credentials in agent code
  • Central place to manage, scope, and revoke Reteno access
  • Per user and per environment credentials for safer customer engagement workflows

Agent Optimized Design

  • Tools are tuned using real error and success rates to improve reliability over time
  • Clear schemas help agents understand Reteno contacts, events, campaigns, and messaging actions
  • Comprehensive execution logs so you always know what ran, when, and on whose behalf

Enterprise Grade Security

  • Fine-grained RBAC so you control which agents and users can access Reteno
  • Scoped, least privilege access to Reteno customer engagement resources
  • Full audit trail of agent actions to support review, debugging, and compliance
FAQ

Frequently asked questions

Yes, Reteno requires you to configure your own API key. Once set up, Composio handles secure credential storage and API request handling for you.

Yes! Composio's Tool Router enables agents to use multiple toolkits. Learn more.

Yes. Composio is SOC 2 Type II compliant and is built to keep your Reteno connection and credentials secure. OAuth tokens and API keys are encrypted, and sensitive customer data is protected at rest and in transit.

Composio also undergoes independent security testing and continuously monitors its systems for security threats. You can review the latest reports and policies in the Composio Trust Center.

Composio maintains and updates all toolkit integrations automatically, so your agents always work with the latest API versions.

Create the key in your Reteno account settings, then paste it once on Composio's connection page. Composio stores it encrypted and uses it only for the Reteno actions your agent runs. Nobody else in your workspace can read it, and you can revoke it inside Reteno at any time.

When you connect a Reteno account through Composio, every action runs under that account, so anything the agent creates, sends, or changes shows up in Reteno as done by you. Keep an approval step in your prompt for actions with side effects, such as sending or deleting, and have the agent draft first.

Whatever the credentials you connect allow inside Reteno. If Reteno lets you scope a key to specific permissions, create a scoped one so the agent can only do what you intend. You can revoke the key inside Reteno at any time.

Yes. Composio supports multiple connected accounts for the same app, and that works in Claude, ChatGPT, or any other assistant you connect through Composio. Give each Reteno connection a name such as work or personal, and the assistant uses the one you mention in the request. Each account keeps its own credentials and nothing is merged.

The connection stops working the moment Reteno rejects the old key. Create a new key in Reteno and reconnect the account from the Composio dashboard or by asking your agent to reconnect Reteno. Nothing else changes.

Composio's free Hobby plan includes 100,000 tool calls per month with no credit card, which covers most personal Reteno use. Paid plans add higher limits and team features. Your Reteno plan and its API limits still apply as usual.

Built-in connectors usually give one AI access to a limited set of apps. Many people use Composio because it lets their AI connect to more apps than it normally supports, or connect to multiple accounts for the same app (e.g. connect Claude to multiple Reteno accounts).

With Composio, you connect Reteno once and then use it across different AI assistants without setting it up separately in each one. Connect your apps to Composio once, then connect Composio to whichever AI you use, whether that's Claude, ChatGPT, Hermes, or your own custom assistant.

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