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Peras

Monitors and controls AI agent usage to prevent plan overages

€4.99Starting price
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About Peras

Peras tracks usage for Claude Code and Codex agents, displaying weekly progress through a menu bar icon. It estimates remaining allowance based on configured reset schedules and allows setting weekly or daily limits. When usage approaches a defined threshold, Peras can issue warnings, pause agents until confirmation, or automatically block tool calls. The tool supports separate rules for different folders and projects, with allowances that reset at local midnight or weekly. A visual interface shows observed usage, gaps in tracking, and recent interventions. Peras operates locally without reading login files or tokens, relying on account-wide usage estimates. The CLI and hooks are free and open source, while a paid macOS app provides a menu bar interface and additional features.

Key features

  • Monitors weekly usage progress for two agents
  • Sets weekly or daily allowances per folder
  • Issues warnings, pauses, or blocks tool calls at configured thresholds
  • Displays usage charts and recent sessions
  • Supports separate rules for Claude Code and Codex
  • Provides CLI commands for status, pausing, and resuming
  • Includes a free SwiftBar menu option
  • Allows manual pauses and resumes with time limits

Use cases

  • Prevent AI plan overages by setting usage limits
  • Monitor project-specific AI usage across teams
  • Pause agents during low-allowance periods to conserve budget

Pros

  • Tracks usage for both Claude Code and Codex separately
  • Offers CLI and hooks at no cost with MIT license
  • Provides visual weekly progress and pause controls
  • Supports folder-specific allowances and daily limits
  • Operates locally without accessing login files or tokens

Cons

  • Requires macOS 13 or later
  • Paid app for full menu bar experience
  • No support for Windows or Linux
  • Stale readings may delay pauses

Frequently asked questions about Peras

What does Peras do?

Peras monitors usage for Claude Code and Codex agents, providing real-time tracking of plan consumption through a menu bar interface. It estimates remaining allowance based on configured reset schedules and can issue warnings, pause agents, or block tool calls when usage approaches defined thresholds.

Who should use Peras?

Peras is designed for developers and teams using Claude Code or Codex who want to prevent accidental overuse of their plan limits. It is particularly useful for those who need granular control over agent usage across different projects or folders.

How does Peras track usage?

Peras tracks usage by monitoring agent activity through local hooks, estimating consumption based on account-wide usage data. It does not read login files or tokens, relying instead on observed increases in weekly percentage allowances.

Can Peras pause agents automatically?

Yes, Peras can automatically pause agents when usage approaches a defined threshold. It also supports manual pauses and offers options to warn users or request confirmation before pausing.

What are the pricing options for Peras?

The CLI and hooks for Peras are free and open source under the MIT license. The macOS app is available for a one-time purchase of €4.99, which includes a signed, notarized application and updates.

Does Peras work with both Claude Code and Codex?

Yes, Peras supports both Claude Code and Codex agents, with separate tracking, rules, and controls for each. It can monitor usage for both agents simultaneously and apply pauses or warnings independently.

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