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For agencies running AI agents for clients

Your agents work all night.
We guard your spend.

The financial firewall for AI agents.

You run agents for clients. One bad loop and the bill eats your entire retainer. Appays stops that before the charge.

▸ Works with OpenAI · Anthropic · OpenRouter · any LLM

Private & Secure·No spam·Cancel any time
Hard caps per client, per agentClient A gets $100/mo. Their support agent gets $80, lead-gen gets $20. Hit the limit? The call stops. Not an alert — stops.
Kill runaway loops instantlyYour agent hallucinates at 3 AM and retries 500 times? Appays catches it at call #1 over budget and blocks it. You wake up to zero damage.
Know exactly what each client costsEvery API call is tagged to a client and project. See your real margins in one screen — no spreadsheets, no guessing.
One-line setup — no code rewriteSwap your base URL. That's it. Works with n8n, Make.com, LangChain, custom code — any tool that calls an LLM API.

See it in action

Try it yourself

Takes 30 seconds. No sign-up needed.

appays — setup demo

SEE HOW IT WORKS

Connect your AI provider. Create an agent key with limits.
Watch Appays enforce it live.

NO SIGNUP · 30 SECONDS

Why agencies choose Appays

You manage 10 clients. 30 agents. One API bill.

Which client costs what? Which agent is looping? Can you afford to find out on Monday morning?

🔥Runaway protection

Agent loop? Killed instantly.

Set a $50 cap per client. If an agent loops at 3 AM, Appays cuts it off — your retainer stays intact.

💰Per-client billing

Finally know who costs what.

Every API call is tagged to a client and project. No more guessing which account is eating your margins.

🚫Hard budget limits

Budgets that actually hold.

Even when agents fire 10 parallel calls, the budget holds. Reserve-then-deduct — no race conditions.

How we compare

Built for agent spend governance, not cloud dashboards

Dashboards show you the damage after. Appays prevents it before.

Appaysvs. Solution typeWhat it doesWhenWhat's missing
Blocks, downgrades, or approves before the API callVisibility / cost dashboardsShows costs & breakdownsAfter the spend happenedNo real-time blocking
Policy per agent, feature, or client projectCloud FinOps toolsDetects waste & cloud anomaliesAround infra usageNot built for agent spend governance
Unified enforcement layer across all providersProvider-native controlsBasic limits inside one providerWithin that single providerNo cross-provider or biz attribution

Most tools explain spend after it happens.

Appays governs spend before execution.

How it works

Change one line. Done.

01

Swap your base URL

Point your OpenAI or Anthropic calls to Appays instead. Works with n8n, Make, LangChain — any tool. No SDK. No code rewrite.

02

Set budgets per client

Give each client a spending cap. Give each agent a limit. If anything goes over, it stops — not alerts, stops.

03

Sleep without worrying

Every call is metered, attributed, and logged. You see exactly what each client costs. No more surprise Monday bills.

Stop losing money to agent loops

Protect your margins. Know your costs. Sleep.

300 agency spots left for early access.