RB2B is a US-focused B2B website visitor identification platform that resolves anonymous web traffic into person-level leads — names, LinkedIn profiles, hashed and plaintext business emails, mobile ad IDs, and full business profiles — and pushes them to sales, marketing, and ad-tech systems. The product is delivered as a JavaScript pixel plus a knowledge- base and pipeline of 50+ destination integrations (Slack, Microsoft Teams, Salesforce, HubSpot, Clay, Zapier, Apollo, Customer.io, Demandbase, and others), with global company-level identification and US-only person- level resolution. RB2B operates a separate API Partner Program at api.rb2b.com that exposes credit-metered Identification endpoints (IP → HEM, IP → MAID, IP → Company Domain) and Enrichment endpoints (HEM → LinkedIn, HEM → Business Profile, HEM → MAID, LinkedIn → Email, LinkedIn → Phone, Email → LinkedIn, Email → MAID) for SaaS developers, GTM engineers, retailers, and ad-tech platforms that want to embed identity resolution into their own apps and identity graphs. The platform is SOC 2 Type II certified.
RB2B publishes 2 APIs on the APIs.io network: Identification API and Enrichment API. Tagged areas include Identity Resolution, Visitor Identification, B2B Data, Lead Generation, and Sales Intelligence.
RB2B’s developer surface includes pricing, support, and 11 more developer resources.
Credit-metered Identification endpoints that convert anonymous web signals (IP addresses and user agents) into business identifiers, including IP → HEM (hashed email), IP → MAID...
Credit-metered Enrichment endpoints that take a known identifier (hashed email, LinkedIn URL, plaintext email, MAID, or company domain) and return additional B2B attributes — Li...
The RB2B JavaScript pixel installed in a site header (or via Google Tag Manager / Segment / RudderStack / Shopify / Webflow / WordPress / HubSpot CMS / Wix) is the primary data ...
aid: rb2b
name: RB2B
description: >-
RB2B is a US-focused B2B website visitor identification platform that
resolves anonymous web traffic into person-level leads — names, LinkedIn
profiles, hashed and plaintext business emails, mobile ad IDs, and full
business profiles — and pushes them to sales, marketing, and ad-tech
systems. The product is delivered as a JavaScript pixel plus a knowledge-
base and pipeline of 50+ destination integrations (Slack, Microsoft Teams,
Salesforce, HubSpot, Clay, Zapier, Apollo, Customer.io, Demandbase, and
others), with global company-level identification and US-only person-
level resolution. RB2B operates a separate API Partner Program at
api.rb2b.com that exposes credit-metered Identification endpoints
(IP → HEM, IP → MAID, IP → Company Domain) and Enrichment endpoints
(HEM → LinkedIn, HEM → Business Profile, HEM → MAID, LinkedIn → Email,
LinkedIn → Phone, Email → LinkedIn, Email → MAID) for SaaS developers,
GTM engineers, retailers, and ad-tech platforms that want to embed
identity resolution into their own apps and identity graphs. The platform
is SOC 2 Type II certified.
type: Index
position: Provider
access: 3rd-Party
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
- Identity Resolution
- Visitor Identification
- B2B Data
- Lead Generation
- Sales Intelligence
- Marketing
- Data Enrichment
- LinkedIn Enrichment
- Hashed Email
- Mobile Ad ID
- Firmographics
- Webhooks
- Pixel
- Adtech
- Identity Graph
url: https://raw.githubusercontent.com/api-evangelist/rb2b/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.20'
apis:
- aid: rb2b:rb2b-identification-api
name: RB2B Identification API
tags:
- Identity Resolution
- Identification
- IP Lookup
- Hashed Email
- Mobile Ad ID
- B2B Data
humanURL: https://www.rb2b.com/apis
description: >-
Credit-metered Identification endpoints that convert anonymous web
signals (IP addresses and user agents) into business identifiers,
including IP → HEM (hashed email), IP → MAID (mobile ad ID), and
IP → Company Domain. Hosted on api.rb2b.com and accessed through the
RB2B API Partner Program with its own account, credit balance, and
Postman-based documentation. Person-level resolution is US-only;
company-level resolution is global.
properties:
- url: https://www.rb2b.com/apis
type: Documentation
- url: https://postman.api.rb2b.com/
type: Postman
- url: https://ui.api.rb2b.com/login
type: Portal
- url: https://support.rb2b.com/en/articles/12579420-rb2b-s-api-partner-program
type: SignUp
- aid: rb2b:rb2b-enrichment-api
name: RB2B Enrichment API
tags:
- Enrichment
- LinkedIn
- Email
- Phone
- Business Profile
- B2B Data
humanURL: https://www.rb2b.com/apis
description: >-
Credit-metered Enrichment endpoints that take a known identifier
(hashed email, LinkedIn URL, plaintext email, MAID, or company domain)
and return additional B2B attributes — LinkedIn URL, full business
profile, multiple personal or business emails, phone number, MAID, and
firmographics. Designed for SaaS developers, GTM engineers, and ad-tech
platforms that want to enrich their own identity graphs. Hosted on
api.rb2b.com and accessed through the RB2B API Partner Program.
properties:
- url: https://www.rb2b.com/apis
type: Documentation
- url: https://postman.api.rb2b.com/
type: Postman
- url: https://ui.api.rb2b.com/login
type: Portal
- aid: rb2b:rb2b-pixel-webhooks
name: RB2B Pixel and Destination Webhooks
tags:
- Pixel
- JavaScript
- Webhooks
- Integrations
- Tag Manager
humanURL: https://support.rb2b.com/en/
description: >-
The RB2B JavaScript pixel installed in a site header (or via Google
Tag Manager / Segment / RudderStack / Shopify / Webflow / WordPress /
HubSpot CMS / Wix) is the primary data ingestion surface for RB2B.
Resolved visitors are pushed downstream through a webhook and
destination layer that fan out to 50+ ad, CRM, marketing-automation,
enrichment, and orchestration tools — Slack, Microsoft Teams,
Salesforce, HubSpot, Clay, Zapier, Customer.io, Apollo, Demandbase,
Google Ads, Meta Ads, LinkedIn Ads, Webhook URLs, and others — based
on the customer's tier and configuration.
properties:
- url: https://support.rb2b.com/en/
type: Documentation
- url: https://support.rb2b.com/en/articles/9061641-setup-guide-apollo-io
type: IntegrationGuide
common:
- type: Website
url: https://www.rb2b.com
- type: Pricing
url: https://www.rb2b.com/pricing
- type: Partner
url: https://www.rb2b.com/partner
- type: Support
url: https://support.rb2b.com/en/
- type: APIs
url: https://www.rb2b.com/apis
- type: APIPortal
url: https://ui.api.rb2b.com/login
- type: APIDocumentation
url: https://postman.api.rb2b.com/
- type: APIPartnerProgram
url: https://support.rb2b.com/en/articles/12579420-rb2b-s-api-partner-program
- type: APICollections
url: https://support.rb2b.com/en/collections/16023167-api-partner-program
- type: Contact
url: mailto:[email protected]
- type: Twitter
url: https://twitter.com/RetentionAdam
- type: LinkedIn
url: https://www.linkedin.com/company/rb2b
- type: Instagram
url: https://www.instagram.com/retentiondotcom/
maintainers:
- FN: Kin Lane
email: [email protected]