IN THE FIELD GUIDE
Billguard
billguard.app
BillGuard is a spend monitoring tool that merges usage data from OpenAI and Anthropic to forecast AI billing and alert users before exceeding budgets. It operates with a read-only key, requires no code changes or proxies, and sends alerts via email, Telegram, or Slack.
THE PRODUCT, BEYOND THE PITCH
Editorially reviewed · Sources checked Oct 1, 2026
A good fit for
- Independent developers and small teams who want to avoid surprise AI bills without integrating proxies or SDKs.
Know the limitations
- Supports only OpenAI and Anthropic providers at launch, with more providers planned for the future.
- Does not require or support code changes, proxies, or SDK integration, which may limit deeper usage analytics.
What you can do
- Prevent unexpected AI billing overages by monitoring and forecasting spend across multiple providers.
- Receive budget alerts in communication channels you already use to avoid surprise charges.
Features
- Merges spend data from OpenAI and Anthropic into one unified view.
- Forecasts final bill run-rate to predict spending before limits are exceeded.
- Sends proactive alerts via email, Telegram, and Slack with durable outbox and retries to ensure delivery.
Integrations
Not confirmed yet.
Platforms & data export
Not confirmed yet.
THE COST FOR YOUR TEAM
Go beyond the starting price.
Published plan prices for your team size and usage. Results update as you type. Taxes, currency conversion and unlisted add-ons are excluded, and anything the source did not state is called out rather than guessed.
Cheapest fit for 1 person, all 1 tools
$7.00/month
$84.00 a year on these plans.
| Tool / plan | Monthly | Per year | What this assumes |
|---|---|---|---|
ProCheapest fit Flat subscription | $7.00 | $84.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
Team Flat subscription | $49.00 | $588.00 | Automatically extracted from the linked pricing source. Seat allowances, usage limits, taxes and terms are not confirmed — check them with the provider. |
A practical workflow
- Step 1: Paste a read-only OpenAI and/or Anthropic admin key; no prompt or code data is accessed.
- Step 2: Set multiple budgets for day, week, and month with run-rate forecasts of final bill.
- Step 3: Receive alerts before exceeding budgets via email, Telegram, or Slack with guaranteed delivery.
Based on the sources below. Editorial review does not imply hands-on product testing.
Alternatives to explore
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