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support tech stack

support.site

Plain provides a help center, customer inbox, and AI assistant for customer support. It serves B2B SaaS companies and startups.

Summarized from its homepage on 11 Nov 2026.

Classified asCustomer support

The support homepage

Vendors of support and the evidence for each

support declares 29 subprocessors, including AI providers Anthropic, Baseten, OpenAI, xAI.

VendorCategoryEvidenceLevel
CloudflareCloud and infrastructureConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Websiteheader: cf-ray: a58f63ad6842566d-LAX11 Nov 2026Source
Companies using Cloudflare
VercelCloud and infrastructureConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Websiteheader: x-vercel-id: sfo1::7cjlk-1794422048969-5ee105bbd71d11 Nov 2026Source
Companies using Vercel
Amazon Web ServicesCloud and infrastructureConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Amazon Web Services
AnthropicAI and LLM providersConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Anthropic
BasetenAI and LLM providersConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Baseten
Customer.ioEmail and communicationsConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Customer.io
DatadogObservabilityConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Datadog
GoogleCloud and infrastructureConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using Google
HubSpotCRM and salesConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source
Companies using HubSpot
HyperlineConfirmed
Subprocessor listProcesses data for the company11 Nov 2026Source

23 more vendors

See support's full stack and the source for every claim.

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Questions about support

Does support use Anthropic?Does support use Baseten?Does support use OpenAI?Does support use xAI?

Vendor's own statement, retrieved from the source URL on the date shown. StrataDB does not verify the underlying claim. Data sources.

See support's full stack

Every vendor with its source and date, and an alert when support adds or drops one. The same lookup works for any company.

  • Every company and vendor, with its public source
  • 100 API calls a month, plus MCP and the Chrome extension
  • Work email only. No card, no sales call