> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pedge.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# OI change rates

> 1h, 4h, 24h OI change percentages. **Credit cost: 3**



## OpenAPI

````yaml /openapi.json get /v1/oi/changes
openapi: 3.1.0
info:
  title: Pedge API
  description: >-
    Cross-exchange perpetual futures intelligence API. Pure math — Z-scores,
    percentiles, ratios, classifications. 5 exchanges, 37 endpoints,
    credit-based pricing.
  version: 1.0.0
  contact:
    name: Pedge
    url: https://pedge.xyz
servers:
  - url: https://api.pedge.xyz
    description: Production
  - url: http://localhost:3007
    description: Local development
security:
  - apiKey: []
paths:
  /v1/oi/changes:
    get:
      tags:
        - Open Interest
      summary: OI change rates
      description: '1h, 4h, 24h OI change percentages. **Credit cost: 3**'
      operationId: getV1OiChanges
      parameters:
        - name: coin
          in: query
          required: true
          schema:
            type: string
      responses:
        '200':
          description: OI changes
components:
  securitySchemes:
    apiKey:
      type: http
      scheme: bearer
      description: >-
        API key from app.pedge.xyz dashboard. Pass as `Authorization: Bearer
        pdg_...`

````