Drippay

Drippay Billable Metrics API

Evaluate and preview billable metrics.

Documentation GitHub OpenAPI

Business capability

Usage Metering BC-4250.10

Operations 7

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

GET /v1/billable-metrics List billable metrics · List billable metrics #

Ask an LLM

“Which billable metrics have I defined?”

“Can I see every metric I bill usage on?”

Tell an agent

List my billable metrics.

Show all the metrics defined for my business.

POST /v1/billable-metrics Create a billable metric · Create a billable metric #

Ask an LLM

“How do I define a metric that bills on several event types at once?”

“Does a billable metric's name have to be unique?”

Tell an agent

Create a billable metric that unions my usage event types.

Define a new billable metric for my business.

GET /v1/billable-metrics/{id} Get a billable metric · Get a billable metric by id #

Ask an LLM

“What event types and aggregation does one metric use?”

“Can I fetch a single billable metric by ID?”

Tell an agent

Show billable metric {id}.

Get the definition of metric {id}.

PATCH /v1/billable-metrics/{id} Update a billable metric · Update a billable metric #

Ask an LLM

“Can I change the definition of an existing billable metric?”

“How do I edit a metric I've already saved?”

Tell an agent

Update billable metric {id}.

Edit the saved definition of metric {id}.

DELETE /v1/billable-metrics/{id} Deactivate a billable metric · Delete (soft-delete) a billable metric #

Ask an LLM

“What happens to historical charges if I delete a billable metric?”

“How do I retire a metric I no longer bill on?”

Tell an agent destructive · confirm first

Delete billable metric {id}.

Soft-delete metric {id}.

POST /v1/billable-metrics/{id}/evaluate Evaluate a saved metric over a period · Evaluate a billable metric over a period (no side effects) #

Ask an LLM

“What value would a saved metric produce over a given billing period?”

“Can I dry-run a billable metric against real usage without creating charges?”

Tell an agent

Evaluate billable metric {id} over a period.

Run metric {id} against my usage events without billing anything.

POST /v1/billable-metrics/preview Preview an unsaved metric SQL expression · Preview an unsaved sqlExpression #

Ask an LLM

“Can I test a SQL expression for a metric before I save it?”

“What would a draft metric query return on my events?”

Tell an agent

Preview this unsaved metric SQL expression.

Test a draft sqlExpression before creating the metric.

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Drip Billable Metrics API
  description: '# Drip API


    **Usage-based billing + execution ledger.**


    ---


    ## 60-Second Quickstart (Core SDK)


    ### 1.'
  version: 1.0.0
  contact:
    name: Drip Support
    email: support@drippay.dev
  x-logo:
    url: https://drippay.dev/logo.svg
    altText: Drip
servers:
- url: https://api.drippay.dev
  description: Production
- url: http://localhost:3001
  description: Development
security:
- bearerAuth: []
tags:
- name: Billable Metrics
  description: Evaluate and preview billable metrics.
paths:
  /v1/billable-metrics:
    get:
      operationId: listBillableMetrics
      summary: List billable metrics
      tags:
      - Billable Metrics
      description: List every billable metric defined for the business.
      responses:
        '200':
          description: Default Response
    post:
      operationId: createBillableMetric
      summary: Create a billable metric
      tags:
      - Billable Metrics
      description: Creates a new billable metric. Name must be unique per business. Supply one or more event types — the metric will union events across all of them.
      responses:
        '200':
          description: Default Response
  /v1/billable-metrics/{id}:
    get:
      operationId: getBillableMetric
      summary: Get a billable metric by id
      tags:
      - Billable Metrics
      parameters:
      - schema:
          type: string
        in: path
        name: id
        required: true
      responses:
        '200':
          description: Default Response
    patch:
      operationId: updateBillableMetric
      summary: Update a billable metric
      tags:
      - Billable Metrics
      parameters:
      - schema:
          type: string
        in: path
        name: id
        required: true
      responses:
        '200':
          description: Default Response
    delete:
      operationId: deleteBillableMetric
      summary: Delete (soft-delete) a billable metric
      tags:
      - Billable Metrics
      description: Sets isActive=false. Rate cards that reference the metric keep working for historical charges because the row stays in the DB.
      parameters:
      - schema:
          type: string
        in: path
        name: id
        required: true
      responses:
        '200':
          description: Default Response
  /v1/billable-metrics/{id}/evaluate:
    post:
      operationId: evaluateBillableMetric
      summary: Evaluate a billable metric over a period (no side effects)
      tags:
      - Billable Metrics
      description: Executes the metric's SQL expression (or, if not set, the declarative aggregation) against the merchant's usage events for [periodStart, periodEnd) and returns the result. Read-only — no charges, invoices, or counters change.
      parameters:
      - schema:
          type: string
        in: path
        name: id
        required: true
      responses:
        '200':
          description: Default Response
  /v1/billable-metrics/preview:
    post:
      operationId: previewBillableMetricSql
      summary: Preview an unsaved sqlExpression
      tags:
      - Billable Metrics
      responses:
        '200':
          description: Default Response
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: API Key
      description: 'API key from Drip Dashboard. Format: `sk_live_...` or `sk_test_...`'

Drippay Billable Metrics API

Operations 7

Documentation

Specifications

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OpenAPI Specification