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RB2B

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.

3 APIs 0 Features
Identity ResolutionVisitor IdentificationB2B DataLead GenerationSales IntelligenceMarketingData EnrichmentLinkedIn EnrichmentHashed EmailMobile Ad IDFirmographicsWebhooksPixelAdtechIdentity Graph

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.

APIs

RB2B Identification API

Credit-metered Identification endpoints that convert anonymous web signals (IP addresses and user agents) into business identifiers, including IP → HEM (hashed email), IP → MAID...

RB2B Enrichment API

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...

RB2B Pixel and Destination Webhooks

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 ...

Resources

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Website
Website
💰
Pricing
Pricing
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Partner
Partner
💬
Support
Support
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APIs
APIs
🌐
APIPortal
APIPortal
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APIDocumentation
APIDocumentation
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APIPartnerProgram
APIPartnerProgram
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APICollections
APICollections
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Contact
Contact
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Twitter
Twitter
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LinkedIn
LinkedIn
🔗
Instagram
Instagram

Sources

Raw ↑
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]