An AI support team, not another FAQ chatbot
SupportFast gives indie SaaS founders a Customer Agent for customers and an Internal Agent for configuration, investigation, and improvement — grounded in policies, knowledge, and permitted tools.
Start with a 7-day trial. Paid plans start at $29/month.
Customer Agent
Works with your customers in the widget: investigates the problem, searches knowledge, follows policies, uses connected tools, and escalates with a complete picture when needed.
Internal Agent
Works for the founder: helps configure the Customer Agent, turn instructions into policies, investigate hard conversations, and propose improvements after real cases.
Policies and approvals
You decide what is safe to answer or act on. Sensitive actions wait for founder approval. The agent should never invent an investigation or action that did not happen.
Knowledge plus connected tools
Docs matter, but support rarely ends there. Connect the tools you already open during support so investigation stays in one place instead of ten browser tabs.
From setup to resolved cases in one founder-sized loop
No visual workflow builder. No enterprise routing suite. Connect knowledge and tools, publish policies, launch the Customer Agent, then improve from real outcomes.
Connect knowledge and tools
Start with docs and product knowledge. Connect the engineering and billing tools you already use so the Customer Agent can investigate real issues.
Set policies and permissions
Define what the Customer Agent may answer, what it must escalate, and which actions need your approval.
Launch the Customer Agent
Embed the widget. Customers get help that investigates instead of only searching a FAQ dump.
Review and improve
Escalations land in your inbox with context. Resolved cases feed the next improvement to policies, knowledge, and permissions.
Hard cases land with investigation context
When the Customer Agent cannot resolve safely, you get the conversation, what it checked, which policy applied, and any pending approval — not a dead-end bot transcript.
Founder inbox
Escalations arrive with investigation context, policy matches, and approval requests.
Checkout failed after upgrade
InvestigatedChecked Stripe invoice status and pricing policy before drafting a reply.
Create Linear issue for this crash
ApprovalWaiting for founder approval before writing to Linear.
Annual invoice question
ResolvedMatched billing policy and a similar resolved case.
Customers keep asking about annual invoices. Publish a clearer billing policy and allow a read-only Stripe lookup for similar cases.
$ permit-tool stripe.readInvoice
Install the Customer Agent where customers already are
Embed the widget with a script tag, connect knowledge, publish policies, and keep sensitive actions behind founder approval.
src="supportfa.st/widget.js"
data-public-key="pk_live_..."
async
></script>
Build your Customer Agent
Connect knowledge, set policies, install the widget, and keep founder approval on anything sensitive.