All official/primary unless noted. ⭐ = HubSpot first-party. Core sources were
3-vote fact-checked (25/25 claims confirmed). YouTube transcripts in the [video]
section + VIDEO_NOTES.md.
A. HubSpot CLI — reference & package ⭐
- https://developers.hubspot.com/docs/developer-tooling/local-development/hubspot-cli/reference — CLI command reference
- https://developers.hubspot.com/docs/cms/developer-reference/local-development-cli — CMS local dev + auth
- https://developers.hubspot.com/docs/developer-tooling/local-development/hubspot-cli/personal-access-key — PAK auth
- https://www.npmjs.com/package/@hubspot/cli — npm package
- https://github.com/HubSpot/hubspot-cli/releases — release notes (v8.x, MCP, namespaces)
- https://developers.hubspot.com/docs/platform/project-cli-commands — project CLI commands
B. Developer platform, Projects, serverless, custom code ⭐
- https://developers.hubspot.com/docs/apps/developer-platform/overview — platform overview (apps = Projects)
- https://developers.hubspot.com/docs/platform/serverless-functions — serverless functions
- https://developers.hubspot.com/blog/navigating-serverless-functions-on-hubspots-new-developer-platform — serverless on new platform (2026.03)
- https://developers.hubspot.com/docs/reference/api/automation/custom-code-actions — custom-coded workflow actions
- https://developers.hubspot.com/docs/api-reference/automation-actions-v4-v4/custom-code-actions — custom code actions v4
- https://developers.hubspot.com/blog/3-ways-to-use-custom-coded-workflow-actions-with-operations-hub — practical custom-code examples
C. Credentials: Service Keys vs private apps ⭐
- https://developers.hubspot.com/blog/hubspot-service-keys-the-right-api-credential-for-data-integrations — Service Keys explainer
- https://developers.hubspot.com/changelog/service-keys — Service Keys changelog (Feb 10, 2026 beta)
D. CI/CD — GitHub Actions ⭐
- https://developers.hubspot.com/docs/cms/start-building/introduction/developer-environment/github-integration — CMS GitHub integration
- https://github.com/HubSpot/hubspot-cms-deploy-action — CMS Deploy action
- https://github.com/HubSpot/hubspot-project-actions — Projects CI/CD actions (v1.1.0)
- https://developers.hubspot.com/docs/developer-tooling/third-party-tools/set-up-github-actions — set up GitHub Actions
E. AI / MCP / Claude connector ⭐ (the automation-with-AI path)
- https://developers.hubspot.com/mcp — the two MCP servers (Remote CRM + Developer)
- https://developers.hubspot.com/docs/apps/developer-platform/build-apps/integrate-with-hubspot-mcp-server — Remote MCP (CRM read/write) integration
- https://developers.hubspot.com/docs/developer-tooling/local-development/mcp-server — Developer MCP (
hs mcp setup) - https://knowledge.hubspot.com/integrations/set-up-and-use-the-hubspot-connector-for-claude — HubSpot connector for Claude (read/write CRM from chat)
F. Practitioner / RevOps patterns (third-party blogs — not fact-checked)
- https://blog.revpartners.io/en/revops-articles/hubspot-automation-guide-2026 — RevOps automation guide 2026
- https://content.hubjoy.co/clay-hubspot-workflow-automation-guide-boost-lead-routing-roi — Clay + HubSpot lead routing
- https://www.digitalapplied.com/blog/hubspot-mcp-server-ai-agent-integration-guide — HubSpot MCP integration guide
- https://www.merge.dev/blog/hubspot-mcp-claude-code — HubSpot MCP + Claude Code
YouTube video walkthroughs [video]
Transcripts could NOT be auto-pulled: YouTube IP-rate-limited this machine after the 16
transcripts fetched earlier tonight; two timed retries (25 min, 50 min) both returned
IpBlocked. Auto-retries stopped to avoid hammering a flagged IP. To get them later:
re-run the transcript fetch from a different network/IP, or wait several hours for the
block to lift — the links below are all valid in the meantime.
CLI / Projects / serverless 27. HubSpot Developer Projects & Local Dev Like a Boss — HubSpot tech lead, local dev + projects 28. This One Command Makes Coding Faster on HubSpot — CLI setup→deploy 29. Bring Your Own Backend to the HubSpot Developer Platform — external backend 30. How To Create Serverless Functions (For Beginners)
Claude / MCP (most relevant to you) 31. How to connect HubSpot to Claude (No-Code) 32. Claude + HubSpot MCP: The Future of CRM is Here 33. Connect HubSpot to Claude (2-min setup) 34. Automate Your HubSpot CRM with Claude Code
Custom-coded workflow actions (Operations/Data Hub) 35. Creating Custom Actions in HubSpot Workflows 36. How to Write HubSpot Custom Code
⚠️ Caveats
- HubSpot is mid-transition (platform 2025.2 → 2026.03 → 2026.09-beta); Service Keys &
Python custom-code are beta; serverless config is moving to
-hsmeta.json. Re-verify exact filenames/syntax against current docs before building. - All confirmed facts are HubSpot first-party (vendor) — strong for platform behavior, but iPaaS/warehouse/example-workflow specifics (group F) are unverified.