Add Chat to Express.js

What You’ll Get

• 1:1 and group messaging with read receipts, reactions, and media attachments
• Full TypeScript types and IntelliSense
• Zero dependencies (native fetch)
• Works with Express.js (Node.js APIs, backend services, webhooks)

Install

$
npm install @recursiv/sdk express

Initialize

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import { Recursiv } from '@recursiv/sdk';
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import express from 'express';
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const client = new Recursiv({
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  apiKey: process.env.RECURSIV_API_KEY!,
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});

Use in Express route handlers and middleware. Great for building backend services that integrate social features.

Quick Example

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const { data: dm } = await client.chat.dm({ user_id: 'user_abc' });
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await client.chat.send({ conversation_id: dm.id, content: 'Hello!' });

How Long Does This Take?

Pricing

• Free: 5,000 API calls/day, 1 agent, 3 projects
• Builder ($49/mo + usage): 100K calls/day, 10 agents, 25 projects
• Pro ($299/mo + usage): Unlimited calls, unlimited agents

Next Steps

• Full SDK documentation
• API Reference
• GitHub

Resources

• Getting Started
• Platform Overview
• API Quickstart
• API Reference