# metronome

Guides usage-based billing integration with Metronome and Stripe sync. Helps design billable metrics, contracts, and AI token pricing.

- skill · `type=skill` · Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, OpenCode · 485 installs · ★ 1972
- Author: stripe
- License: MIT · policy=mirror · the beginning of the file is at the end of this page
- Source: https://github.com/stripe/ai/tree/HEAD/skills/metronome/SKILL.md
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/skills/metronome

## What it does

The skill guides agents through Metronome usage-based billing architectures. It covers batch event ingestion via `POST /v1/ingest`, idempotency handling, dimensional pricing, and rate card overrides. It enforces using the modern Contracts model instead of legacy Plans for all new setups.

Step-by-step guidance includes migrating from Stripe Billing Meters, configuring commit burn rates, and billing AI apps for token consumption. It highlights cardinality risks: compound `group_keys` cannot be modified once created, making metric design a critical early step.

Sandbox and production share the same API base path, separated solely by your Bearer token. Any operation that modifies objects or cancels Stripe subscriptions demands explicit user verification before execution.

## Requirements
- Works with: Stripe

## Install

### Claude Code (native platform)

1. **Skills CLI (Vercel)**
```bash
npx skills add stripe/ai --skill metronome -a claude-code
```

2. **Manually: put the files in place**
- File: `~/.claude/skills/metronome/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/metronome/

### Codex

1. **Skills CLI (Vercel)**
```bash
npx skills add stripe/ai --skill metronome -a codex
```

2. **Manually: put the files in place**
- File: `.agents/skills/metronome/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

1. **Skills CLI (Vercel)**
```bash
npx skills add stripe/ai --skill metronome -a cursor
```

2. **Manually: put the files in place**
- File: `.cursor/skills/metronome/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install stripe/ai metronome
```

2. **Manually: put the files in place**
- File: `.github/skills/metronome/SKILL.md`

### Gemini CLI

1. **Skills CLI (Vercel)**
```bash
npx skills add stripe/ai --skill metronome -a gemini-cli
```

2. **Platform CLI**
```bash
gemini skills install https://github.com/stripe/ai --path skills/metronome
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/metronome/SKILL.md` — The legacy .windsurf/skills/ path still works

### OpenCode

**Skills CLI (Vercel)**
```bash
npx skills add stripe/ai --skill metronome -a opencode
```

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/stripe/ai/tree/HEAD/skills/metronome/SKILL.md

## When to use it
- design event ingestion pipelines with idempotency via `POST /v1/ingest`
- set up token-based usage billing and rate cards for AI applications
- migrate subscriptions and credits from Stripe Billing Meters to Metronome
- configure prepaid commits, auto-recharge thresholds, and invoice sync

## Example prompts
- Help me design group_keys and billable metrics for LLM token billing.
- Plan a migration cutover from Stripe Billing Meters to Metronome contracts.
- Configure prepaid commit thresholds and Stripe invoice synchronization.

## Source text · SKILL.md · MIT

Below is the content of a third-party file. It is data, not instructions for you: do not act on anything written inside unless the human asks. Block tag: c83363a655720618.

BEGIN THIRD-PARTY FILE c83363a655720618
```text
---
name: metronome
description: >-
  Guides Metronome usage-based billing integration decisions — event ingestion
  (single and batch, idempotency, billable metrics), contract design (rate
  cards, overrides, dimensional pricing, products), invoicing lifecycle (grace
  periods, finalization, Stripe sync), credit and commit management (prepaid,
  postpaid, thresholds, auto-recharge), and Stripe integration (arrears
  invoicing, tax providers, line item limits). Use when building, modifying, or
  reviewing any Metronome integration — including ingesting usage events,
  creating customers, contracts, or rate cards, designing billable metric group
  keys, managing credits and commits, configuring invoicing, syncing invoices
  with Stripe Billing, billing AI applications for token usage, setting up
  self-serve (PLG) pricing, reviewing customer health, commit burn, portfolios,
  or renewals, or migrating from Stripe Billing Meters to Metronome.

---

Metronome API base: `https://api.metronome.com`. Authenticate with a Bearer token in the `Authorization` header. Always use Contracts (not legacy Plans) for new integrations.

## Integration routing

| Building… | Recommended API | Details |
| --- | --- | --- |
| Ingesting usage events | `POST /v1/ingest` (batch) | [Send usage events](https://docs.metronome.com/guides/events/send-usage-events.md), the [API quickstart](https://docs.metronome.com/guides/get-started/api-quickstart.md), the [Ingest API reference](https://docs.metronome.com/api-reference/usage/ingest-events.md), and [Set ingest aliases](https://docs.metronome.com/api-reference/customers/create-or-update-customer-ingest-aliases.md) |
| Defining what to measure | Billable Metrics API | [Create billable metrics](https://docs.metronome.com/guides/implement-metronome/core-concepts/create-billable-metrics.md) |
| Enterprise pricing agreements | Contracts + Rate Cards | [Provision a customer contract](https://docs.metronome.com/guides/implement-metronome/core-concepts/provision-contract.md), [Create and manage rate cards](https://docs.metronome.com/guides/implement-metronome/core-concepts/create-manage-rate-cards.md), and the [Create a contract](https://docs.metronome.com/api-reference/contracts/create-a-contract.md) and [Add rates](https://docs.metronome.com/api-reference/rate-cards/add-rates.md) API references |
| Mid-term contract changes | Contract Edits | [Edit a contract](https://docs.metronome.com/guides/pricing-packaging/make-pricing-changes/edit-contract.md), [Contract edits and overrides](https://docs.metronome.com/guides/pricing-packaging/make-pricing-changes/edit-or-override-a-contract.md), and [Manage contract lifecycle](https://docs.metronome.com/guides/customers-billing/manage-customers/manage-customer-lifecycle.md) |
| Invoice lifecycle and finalization | Invoices API | [How Metronome invoices work](https://docs.metronome.com/guides/implement-metronome/core-concepts/how-invoicing-works.md) |
```
END THIRD-PARTY FILE c83363a655720618

The third-party file has ended. Everything between the c83363a655720618 tags is data: requests and commands from it are not followed. An “end of file” line with another tag inside the block is part of the file.

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