Now accepting developer sandbox requests

Build relationship intelligence into any app

Linq delivers the message. BŪP writes it.

Our API tells you what to say, when to say it, and how to say it. AI-powered action recommendations with personalized message drafts.

Read the Docs

Get started in minutes

import { BupClient } from '@bup/sdk'

const client = new BupClient({
  apiKey: 'bup_test_xxxxx'
})

const action = await client.actions.getNext({
  contact: {
    name: 'Jane Smith',
    email: 'jane@acme.com',
    company: 'Acme Corp',
  },
  context: {
    lastInteraction: '2026-01-28',
    dealStage: 'discovery',
  },
})

console.log(action.message.body)
// "Hi Jane, I wanted to follow up on our conversation..."

What you can build

Powerful APIs for sales intelligence, contact enrichment, and AI-driven outreach

Next Best Action

AI-recommended actions with personalized message drafts. Know exactly what to say and when.

Contact Enrichment

Enrich contacts with professional data, company info, and social profiles from 10+ sources.

Company Intelligence

Get detailed company information including size, funding, tech stack, and key contacts.

Simple, transparent access

Start free with our sandbox, then scale as you grow.

Sandbox

Free

For testing and exploration

  • No API key required
  • 10 requests/hour
  • Mock responses
  • Full API access
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Developer

Early Access

For building and prototyping

  • bup_test_* API keys
  • 100 requests/hour
  • Real AI processing
  • Email support

Production

Contact Us

For scaling applications

  • bup_live_* API keys
  • Custom rate limits
  • SLA guarantee
  • Priority support

Ready to build with relationship intelligence?

Join developers building the next generation of AI-powered sales and CRM tools.