Resolve customer inquiries before anyone waits.
SupportFast pairs a Customer Agent that investigates with your knowledge and tools under strict policies, with an Internal Agent that turns resolved cases into continuous product improvements.
Checkout session failed
checkout-api · verified customer #842
Acme Customer Agent
Investigates natively with the platforms you already rely on
Every fix, fully traced — so you always know what it did and why.
SupportFast narrates its reasoning step by step: what it saw, what it suspected, and exactly which change it shipped. Nothing happens in a black box, and risky actions always pause for a human.
Everything your agent needs, wired up out of the box.
Tools, memory, streaming, and tracing — ship a production agent without stitching the plumbing together yourself.
Watch the agent reason & investigate
It plans, calls the right tools, and reports back — the full loop, streamed step by step.
Add tools in one line
Plug in any MCP server or function — the agent discovers and calls it automatically.
Remembers what matters
Long-term memory and retrieval, baked in across runs.
Returns structured output
Schema-valid, typed JSON every time — ready to use downstream.
Pauses for approval
Asks before risky actions — approve or edit each step.
Fewer interruptions. Faster fixes. Calmer founders.
The support inbox nobody dreads anymore.
From solo founders to platform teams — premium motion, owned source, and zero theme bugs.
“SupportFast investigated a billing webhook failure, queried our Stripe data, and drafted the exact refund approval card before our on-call even woke up. Wild.”
“We cut our mean-time-to-resolve by an order of magnitude. The run traces mean we actually trust what it does.”
“It's like having a senior engineer who never sleeps and reads every log line. On-call rotations stopped being dreaded.”
“SupportFast investigated a billing webhook failure, queried our Stripe data, and drafted the exact refund approval card before our on-call even woke up. Wild.”
“We cut our mean-time-to-resolve by an order of magnitude. The run traces mean we actually trust what it does.”
“It's like having a senior engineer who never sleeps and reads every log line. On-call rotations stopped being dreaded.”
“The approval gates are the killer feature — it pauses for anything risky and ships the boring fixes itself.”
“Onboarded it on a Friday, by Monday it had closed eleven incidents. Our error budget has never looked healthier.”
“The hard reply caps mean I never worry about unexpected $1,000 token bills. The pricing math is honest and crystal clear.”
“The approval gates are the killer feature — it pauses for anything risky and ships the boring fixes itself.”
“Onboarded it on a Friday, by Monday it had closed eleven incidents. Our error budget has never looked healthier.”
“The hard reply caps mean I never worry about unexpected $1,000 token bills. The pricing math is honest and crystal clear.”
Put your support on autopilot.
Connect your stack and SupportFast starts watching immediately — no agents to install on every box, no runbooks to rewrite.
Frequently asked questions
Stop interrupting product work to investigate support tickets
Launch an AI Customer Agent that investigates with your real tools under policy — and keeps you in the loop for sensitive writes.