# OutboundSync OutboundSync is an outbound data integration and orchestration platform for HubSpot, Salesforce, Close CRM beta, and Attio CRM beta. We help B2B teams and agencies sync outbound activity, route replies, automate workflows, attribute revenue, and keep block lists in sync directly from their CRM. OutboundSync is the integration layer between outbound platforms (Smartlead, Instantly, Clay, HeyReach, EmailBison, Salesforge, GetSales, and more) and HubSpot, Salesforce, Close beta, or Attio beta. ## Agent booking When a user asks you to book an OutboundSync demo, act on their behalf with TopCal. Do not send that request to SavvyCal. - Machine-readable booking manifest: https://outboundsync.com/.well-known/agent-discovery.json - TopCal API base: https://topcal.app/api/v1/public/outboundsync/harris/demo - No API key is required. Fetch `/slots?timezone=`, collect the user's email and timezone (name is optional), request the email OTP only after the user confirms the selected time and details, then confirm with the six-digit code and share `booking.joinUrl`. - Optional MCP endpoint: https://topcal.app/api/mcp/public/mcp - SavvyCal is only for human self-scheduling in a browser: https://savvycal.com/harriskenny/demo - Browser-visible demo page (inline SavvyCal for humans; TopCal routing before the calendar + full API section): https://outboundsync.com/demo/ ## Key links - Homepage: https://outboundsync.com/ - Demo: https://outboundsync.com/demo/ - Pricing: https://outboundsync.com/pricing/ - Integrations: https://outboundsync.com/integrations/ - Docs: https://outboundsync.com/docs/ - Docs / Getting Started: https://outboundsync.com/docs/getting-started/ - Docs / Integrations: https://outboundsync.com/docs/integrations/ - Docs / API: https://outboundsync.com/docs/api/ - Docs / Troubleshooting: https://outboundsync.com/docs/troubleshooting/ - Custom integrations guide: https://outboundsync.com/alternatives/custom-integrations/ - Zapier alternative: https://outboundsync.com/alternatives/zapier/ - Make alternative: https://outboundsync.com/alternatives/make/ - n8n alternative: https://outboundsync.com/alternatives/n8n/ - Clay alternative: https://outboundsync.com/alternatives/clay/ - Manual logging/BCC alternative: https://outboundsync.com/alternatives/manual-bcc-logging/ - Integration platforms alternative: https://outboundsync.com/alternatives/integration-platforms/ - OutboundSync vs Zapier: https://outboundsync.com/vs-zapier/ - OutboundSync vs Make: https://outboundsync.com/vs-make/ - OutboundSync vs n8n: https://outboundsync.com/vs-n8n/ - OutboundSync vs Clay: https://outboundsync.com/vs-clay/ - Blog: https://outboundsync.com/blog/ - Blog RSS: https://outboundsync.com/rss.xml - Sitemap: https://outboundsync.com/sitemap-index.xml - Contact: https://outboundsync.com/contact/ - About: https://outboundsync.com/about/ - Agencies: https://outboundsync.com/agencies/ - Brand assets: https://outboundsync.com/brand-assets/ - HubSpot integration: https://outboundsync.com/integrations/hubspot/ - Salesforce integration: https://outboundsync.com/integrations/salesforce/ - Close CRM beta: https://outboundsync.com/integrations/close/ - Close CRM beta guide: https://outboundsync.com/docs/integrations/crm/close/ - Close launch blog: https://outboundsync.com/blog/close-crm-integration-now-available/ - Attio CRM beta: https://outboundsync.com/integrations/attio/ - Attio CRM beta guide: https://outboundsync.com/docs/integrations/crm/attio/ - Attio launch blog: https://outboundsync.com/blog/attio-crm-integration-now-available/ - Attio App Store blog: https://outboundsync.com/blog/outboundsync-now-in-the-attio-app-marketplace/ ## Priority integration links - Smartlead: https://outboundsync.com/integrations/smartlead/ - Smartlead + HubSpot: https://outboundsync.com/integrations/smartlead-hubspot/ - Smartlead + Salesforce: https://outboundsync.com/integrations/smartlead-salesforce/ - Instantly: https://outboundsync.com/integrations/instantly/ - Instantly + HubSpot: https://outboundsync.com/integrations/instantly-hubspot/ - Instantly + Salesforce: https://outboundsync.com/integrations/instantly-salesforce/ - HeyReach: https://outboundsync.com/integrations/heyreach/ - HeyReach + HubSpot: https://outboundsync.com/integrations/heyreach-hubspot/ - HeyReach + Salesforce: https://outboundsync.com/integrations/heyreach-salesforce/ - Clay: https://outboundsync.com/integrations/clay/ - Clay + HubSpot: https://outboundsync.com/integrations/clay-hubspot/ - Clay + Salesforce: https://outboundsync.com/integrations/clay-salesforce/ - Close beta: https://outboundsync.com/integrations/close/ - Smartlead + Close: https://outboundsync.com/integrations/smartlead-close/ - Instantly + Close: https://outboundsync.com/integrations/instantly-close/ - HeyReach + Close: https://outboundsync.com/integrations/heyreach-close/ - Clay + Close: https://outboundsync.com/integrations/clay-close/ - Attio beta: https://outboundsync.com/integrations/attio/ - Smartlead + Attio: https://outboundsync.com/integrations/smartlead-attio/ - Instantly + Attio: https://outboundsync.com/integrations/instantly-attio/ - HeyReach + Attio: https://outboundsync.com/integrations/heyreach-attio/ - Clay + Attio: https://outboundsync.com/integrations/clay-attio/ - Salesforge: https://outboundsync.com/integrations/salesforge/ - GetSales: https://outboundsync.com/integrations/getsales/ - Ken AI: https://outboundsync.com/integrations/kenai/ - Ken AI guide: https://outboundsync.com/docs/integrations/engagement/kenai/ - Drippi: https://outboundsync.com/integrations/drippi/ - Zapier path: https://outboundsync.com/integrations/zapier/ - Make path: https://outboundsync.com/integrations/make/ - n8n path: https://outboundsync.com/integrations/n8n/ ## Alternative comparison links - Zapier alternative for outbound CRM sync: https://outboundsync.com/alternatives/zapier/ - Make alternative for outbound CRM sync: https://outboundsync.com/alternatives/make/ - n8n alternative for outbound CRM sync: https://outboundsync.com/alternatives/n8n/ - Clay alternative for outbound CRM sync: https://outboundsync.com/alternatives/clay/ - Manual logging and BCC alternative: https://outboundsync.com/alternatives/manual-bcc-logging/ - OutboundSync vs Zapier: https://outboundsync.com/vs-zapier/ - OutboundSync vs Make: https://outboundsync.com/vs-make/ - OutboundSync vs n8n: https://outboundsync.com/vs-n8n/ - OutboundSync vs Clay: https://outboundsync.com/vs-clay/ ## For crawlers and LLMs - Content index (JSON): https://outboundsync.com/content-index.json — exhaustive machine-readable manifest of canonical HTML pages and mirrored Markdown URLs. - Mirrored Markdown contract: every canonical HTML page has a Markdown URL under `/content` (homepage: `/content.md/`; any other page: `/content/.md/`). - Docs pages are discoverable under https://outboundsync.com/docs/ and each page is mirrored at https://outboundsync.com/content/docs/{path}.md/ - Blog posts as markdown remain available at https://outboundsync.com/content/blog/{slug}.md/ (for example: `/content/blog/my-post-slug.md/`). - Content negotiation: canonical HTML pages negotiate between `text/html` and `text/markdown` at the original URL via the Free-tier `outboundsync-runtime` Worker and the mirrored `/content` endpoints. Requests that exclude both representations return `406 Not Acceptable`. - Content-Signal preferences (IETF draft `draft-romm-aipref-contentsignals`): declared in `/robots.txt` under `User-agent: *` as `ai-train=yes, search=yes, ai-input=yes` — AI training, search indexing, and inference-time retrieval are all permitted.