What is Plain used for?

Plain is an API-first customer support platform for B2B and technical products, offering composable AI support infrastructure for no-code or all-code setups. It is a good fit for support for developer-facing B2B products and building a custom support workflow.

How much does Plain cost?

Paid plans for Plain start at $55 per seat per month, and there is no free plan. A free trial is available.

Is Plain open source?

No. Plain is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Plain include Chatwoot, Frappe Helpdesk and Libredesk.

What are some alternatives to Plain?

Plain competes with Pylon, Front and Intercom. For open-source options, see Enlisted's ranked list of open-source Plain alternatives.

Plain: features, pricing and alternatives

About Plain

Plain is a commercial customer support platform built for B2B and technical products. It is described as composable AI support infrastructure that teams can configure with no code or extend with code through an API-first design.

The homepage shows a customer agent called Ari that handles conversations on channels such as Slack, drawing on knowledge sources and workflows for triage, labeling and escalation to human staff. Support threads can be investigated with AI, and customers are served where they already work.

Plain is hosted software offered with a trial, demo booking and a pricing page. It suits B2B teams, especially those with developer-facing products, that want to build a support process around their own workflows and tools instead of adopting a fixed help desk layout.

Key features

API-first support infrastructure
AI support agent for customer conversations
Workflows for triage and escalation
Slack-based support channels
No-code and all-code configuration

Good fit for

→Support for developer-facing B2B products
→Building a custom support workflow

Tags: customer-support; b2b; api-first; ai-agent; help-desk; developer-tools; saas

Plain: questions and answers

What is Plain used for?: Plain is an API-first customer support platform for B2B and technical products, offering composable AI support infrastructure for no-code or all-code setups. It is a good fit for support for developer-facing B2B products and building a custom support workflow.
How much does Plain cost?: Paid plans for Plain start at $55 per seat per month, and there is no free plan. A free trial is available.
Is Plain open source?: No. Plain is proprietary (closed-source) software and can't be self-hosted. Open-source alternatives to Plain include Chatwoot, Frappe Helpdesk and Libredesk.
What are some alternatives to Plain?: Plain competes with Pylon, Front and Intercom. For open-source options, see Enlisted's ranked list of open-source Plain alternatives.