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6sense APIs

Bring 6sense intelligence to your systems, agents, & data lakes.

6sense APIs provide predictive buying stages, account insights, scoring, contact data and more into your revenue stack. Improve your existing tools by adding contextual intelligence where its needed.

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How it works

Start calling 6sense intelligence in three steps.

Generate a token.

Go to Settings > API Token Management in the 6sense platform. Create one token per integration. This keeps usage tracking clean and makes troubleshooting straightforward. Tokens are scoped to your purchased API groups.

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Make your first call.

All endpoints are standard REST with JSON responses. Documentation includes ready-to-run examples in Python, Node.js, and cURL, plus a Postman collection for quick exploration.

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Build and ship.

Enrich records, score leads in real time, de-anonymize visitors, or build contact discovery flows, all on top of the same predictive intelligence that powers the 6sense platform itself.

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Use Cases

One API layer. Purpose-built for every GTM function.

Website personalization for known and anonymous visitors.

Use the Company Identification API to resolve anonymous visitor IPs to accounts in real time, then serve personalized content, CTAs, or chat flows based on their industry, buying stage, or segment membership without waiting for a form fill.

Real-time lead scoring and routing in your MAP.

Fire the Lead Scoring & Firmographics API on every new Marketo lead. Get buying stage (Purchase → Target), profile fit, and firmographics back in a single call, then route, score, and prioritize before the lead ever reaches a rep.

Continuous CRM enrichment without manual research.

Call the Company Firmographics API to keep your systems and AI agents up to date with current revenue range, employee count, industry, and more on a schedule you control.

Buying committee discovery for target accounts.

Use the People Search API to find contacts within the 6sense database before calling the People Enrichment API to purchase full contact details for relevant buyer teams such as current role, email, phone, and LinkedIn URL.

AI agent context grounded in live account data.

Feed AI agents predictive intelligence and GTM signals to ensure their output is grounded in the same data your teams require to build and convert pipeline.

Shorten website form fields.

Lower friction by only asking for an email address on your forms. The People Enrichment API instantly fetches firmographic and contact data for you so your buyer doesn't abandon the form.

See what success looks like.

Marketing, sales, and operations finally work from the same source of truth — the same signals, the same timing cues, and the same understanding of which accounts are actually ready.

Angela Borseti, Senior Manager of Marketing, OpenText

27%

new potential marketing-influenced revenue in 30 days

600%

lift in conversion rate

15%

lift in anonymous web activity

The amount of work Email Agents do in a day would take someone on my team a week to do. It’s like having five more SDRs working simultaneously.

Walker Smith, Manager of Sales Development, Custom Truck One Source

738

hours of work saved per week

132

qualified contacts within 5 weeks

$6M

pipeline generated within 5 weeks

The intent data told us who to talk to. AI Email is what made actually talking to them possible, over months, without hiring anyone to do it.

Stephan Cherek, Account-based Marketing Manager, Gilson

54%

Open Rate

4%

Response Rate

$250K

New Pipeline Generated

Not having 6sense is like walking into a room with the lights off. How would you know where to look for the accounts that matter in the market? That’s what 6sense has brought to us.

Carole Groombridge Senior Director of Global Marketing Programs, Ivanti

$263.2M

in influenced pipeline

154%

increase in win rates YoY

43%

increase in average deal sizes

Frequently asked questions.

It depends on the API. The Company Identification and Company Firmographics APIs require a 6sense Platform subscription. Lead Scoring requires the Advanced package. People Enrichment is an add-on that works with any Platform or Sales Intelligence subscription. Your account team can confirm what's included in your current agreement.

There are two credit pools: Company Identification credits (used only for the Company Identification API, one credit per matched IP) and Enrichment credits (shared across the Company Firmographics, Lead Scoring & Firmographics, and People Enrichment APIs). People Search and Lead Scoring don't consume credits. One useful benefit: once a record is enriched, you can re-export it for up to a year without consuming additional credits.

Go to Settings > API Token Management in the 6sense platform. 6sense recommends creating a unique token per integration or use case, this makes usage tracking and troubleshooting much cleaner. Tokens should be rotated every 90 days. For Segments API access, contact 6sense support directly.

All APIs enforce a baseline of 100 requests per minute. The People Enrichment API supports up to 20 queries per second, with batches of up to 25 contacts per call. If your use case requires higher limits, contact your CSM, limits can be adjusted.

They expose the same underlying intelligence. The REST APIs are for direct programmatic integration, CRM enrichment, scoring pipelines, custom applications. The MCP Server wraps that same intelligence in the Model Context Protocol so AI agents can call it as a named tool, with no custom connector required.

The API returns a company match status for every call: "Match" (a valid company was identified), "Non-actionable Match" (the IP resolved to a bot, host, or non-B2B entity), or "No Match." Non-actionable matches are flagged so you can filter them out of downstream workflows.

Built for security.

Governance and access controls

The cross-platform reporting layer, pre-built and custom dashboards, pipeline stage and funnel reports, and account/contact-level detail, that gives visibility into 6sense usage and impact across every connected system.

Security and compliance

A separate, full-featured 6sense instance with its own URL, user management, and data, used to test new features, integration workflows, and sync/export capabilities without touching production.

Native platform integrations

Native connections to Salesforce, HubSpot, Marketo, Dynamics, Salesloft, and Outreach, for teams who want buying-stage context in the platform without building a custom integration.

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6sense intelligence, built into your stack.

The intelligence behind the best GTM teams doesn't have to stay inside the 6sense platform. Build it into everything, and give every tool in your stack an unfair advantage.

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