{"info":{"_postman_id":"91876837-208e-4f93-8404-92b263016b27","name":"RB2B APIs","description":"<html><head></head><body><p>RB2B provides numerous powerful endpoints organized into two main categories:</p>\n<h3 id=\"identification-endpoints\">Identification Endpoints</h3>\n<p>Convert IP addresses and user agents into business data:</p>\n<ul>\n<li><p><strong>IP to HEM</strong> - Convert IP addresses to hashed email addresses (HEM)</p>\n</li>\n<li><p><strong>IP to MAID</strong> - Convert IP addresses and user agents to Mobile Advertising IDs</p>\n</li>\n</ul>\n<h3 id=\"enrichment-endpoints\">Enrichment Endpoints</h3>\n<p>Enrich hashed emails (HEM) with professional and business data:</p>\n<ul>\n<li><p><strong>Business Email to Personal HEM</strong> - Get the highest confidence Personal HEM</p>\n</li>\n<li><p><strong>Email to Best LinkedIn URL</strong> - Get the highest confidence LinkedIn URL</p>\n</li>\n<li><p><strong>Email to Business Profile</strong> - Get company and business information</p>\n</li>\n<li><p><strong>Email to LinkedIn Slug</strong> - Get LinkedIn profile slug</p>\n</li>\n<li><p><strong>Email to MAID</strong> - Get all associated MAIDs for a HEM</p>\n</li>\n<li><p><strong>HEM to Best LinkedIn URL</strong> - Get the highest confidence LinkedIn URL</p>\n</li>\n<li><p><strong>HEM to Business Profile</strong> - Get company and business information</p>\n</li>\n<li><p><strong>HEM to LinkedIn Slug</strong> - Get LinkedIn profile slug</p>\n</li>\n<li><p><strong>HEM to MAID</strong> - Get all associated MAIDs for a HEM</p>\n</li>\n<li><p><strong>IP to Company</strong> - Convert IP addresses directly to company data</p>\n</li>\n<li><p><strong>LinkedIn to Best Personal Email</strong> - Get the highest confidence personal email</p>\n</li>\n<li><p><strong>LinkedIn to Hashed Emails</strong> - Get multiple hashed email variants</p>\n</li>\n<li><p><strong>LinkedIn to Personal Email</strong> - Get multiple personal email variants</p>\n</li>\n<li><p><strong>LinkedIn to Mobile Phone</strong> - Get mobile phone number</p>\n</li>\n<li><p><strong>LinkedIn to Business Profile</strong> - Get company and business information</p>\n</li>\n<li><p><strong>LinkedIn Slug Search</strong> - Search for individuals' LinkedIn slugs</p>\n</li>\n</ul>\n<h3 id=\"frequently-asked-questions\">Frequently Asked Questions</h3>\n<h4 id=\"are-there-rate-limits-for-rb2b-apis\">Are there rate limits for RB2B APIs?</h4>\n<p>RB2B APIs is rate limited to 50 requests per second per endpoint per account.</p>\n<h4 id=\"what-do-the-different-response-codes-mean\">What do the different response codes mean?</h4>\n<ul>\n<li><p>200: successful return with data - credits will be charged only on a 200 response</p>\n</li>\n<li><p>400: malformed or missing info in API request</p>\n</li>\n<li><p>404: no data available for lookup key</p>\n</li>\n</ul>\n<p>In the off chance that you encounter a response code that is not listed above, please contact our support team for more information.</p>\n</body></html>","schema":"https://schema.getpostman.com/json/collection/v2.0.0/collection.json","toc":[],"owner":"49340630","collectionId":"91876837-208e-4f93-8404-92b263016b27","publishedId":"2sB3WnvMWT","public":true,"customColor":{"top-bar":"FFFFFF","right-sidebar":"303030","highlight":"FF6C37"},"publishDate":"2026-04-01T17:49:49.000Z"},"item":[{"name":"v1","item":[{"name":"Administrative Endpoints","item":[{"name":"Credit Check","id":"702e7784-ef61-44de-819e-610178e26c99","protocolProfileBehavior":{"disableBodyPruning":true},"request":{"method":"GET","header":[{"key":"Content-Type","value":"application/json","type":"text"}],"url":"https://api.rb2b.com/api/v1/credits","description":"<p>This endpoint returns the number of credits remaining on the account, to one decimal point.</p>\n","auth":{"type":"apikey","apikey":{"basicConfig":[{"key":"key","value":"Api-Key"},{"key":"value","value":"{{api_key}}"}]},"isInherited":true,"source":{"_postman_id":"91876837-208e-4f93-8404-92b263016b27","id":"91876837-208e-4f93-8404-92b263016b27","name":"RB2B APIs","type":"collection"}},"urlObject":{"protocol":"https","path":["api","v1","credits"],"host":["api","rb2b","com"],"query":[],"variable":[]}},"response":[{"id":"89c48db9-7bdb-49e3-bf73-e1e36e2305b7","name":"Successful Response","originalRequest":{"method":"GET","header":[{"key":"Content-Type","value":"application/json","type":"text"}],"url":"https://api.rb2b.com/api/v1/credits"},"_postman_previewlanguage":null,"header":null,"cookie":[],"responseTime":null,"body":"{\n    credits_remaining: 59735.0\n}"}],"_postman_id":"702e7784-ef61-44de-819e-610178e26c99"}],"id":"6273afc1-4cdc-4e0e-a38c-3a93f2bae415","description":"<p>Administrative endpoints for RB2B APIs</p>\n","_postman_id":"6273afc1-4cdc-4e0e-a38c-3a93f2bae415","auth":{"type":"apikey","apikey":{"basicConfig":[{"key":"key","value":"Api-Key"},{"key":"value","value":"{{api_key}}"}]},"isInherited":true,"source":{"_postman_id":"91876837-208e-4f93-8404-92b263016b27","id":"91876837-208e-4f93-8404-92b263016b27","name":"RB2B APIs","type":"collection"}}},{"name":"Identification Endpoints","item":[{"name":"IP to HEM","event":[{"listen":"test","script":{"id":"094a1c2c-da30-48cf-b01c-c73e4980e145","exec":[""],"type":"text/javascript","packages":{},"requests":{}}},{"listen":"prerequest","script":{"id":"72e3223a-ca4a-48a9-b690-553800ec47a8","exec":[""],"type":"text/javascript","packages":{},"requests":{}}}],"id":"89e39622-b3e9-4047-8960-8a29cf182464","request":{"method":"POST","header":[{"key":"Content-Type","value":"application/json"}],"body":{"mode":"raw","raw":"{\r\n  \"ip_address\" : \"2600:387:15:4a1b::5\", \r\n  \"user_agent\": \"Mozilla/5.0 (Linux; Android 16; SM-S731U Build/BP2A.250605.031.A3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/144.0.7559.132 Mobile Safari/537.36\", \r\n  \"include_sha256\": true\r\n}"},"url":"https://api.rb2b.com/api/v1/ip_to_hem","description":"<p>The IP to HEM endpoint identifies a HEM based on their IP address. 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