Overlay

Overlay Markets API

Market catalog and metadata.

GitHub OpenAPI

Documentation

📖
APIReference
https://docs.overlay.market/api/aggregator-market-data

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/overlay/refs/heads/main/openapi/overlay-markets-api-openapi.yml

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OpenAPI Specification

overlay-markets-api-openapi.yml Raw ↑ 
openapi: 3.1.0
info:
  title: Overlay Market Data Aggregator Markets API
  version: v1
  description: Public, unauthenticated market-data API for the Overlay Protocol — a decentralized perpetual-futures protocol on BNB Smart Chain (chain id 56). Covers the CoinGecko/CMC-style aggregator feed, the market catalog, and the charts price-overview feed. All endpoints are read-only and public. Trading itself is executed on-chain against Overlay smart contracts (Shiva, OverlayV1State); this API surfaces the off-chain data/indexing layer.
  contact:
    name: Overlay Protocol
    url: https://docs.overlay.market/
  x-provenance:
    generated: '2026-07-20'
    method: searched
    source: https://docs.overlay.market/api/aggregator-market-data + live probes of https://api.overlay.market (2026-07-20, HTTP 200)
servers:
- url: https://api.overlay.market
  description: Production
tags:
- name: Markets
  description: Market catalog and metadata.
paths:
  /data/api/markets:
    get:
      operationId: getMarkets
      tags:
      - Markets
      summary: List the market catalog keyed by chain id
      description: Returns the market catalog as an object keyed by chain id (e.g. "56" for BNB Smart Chain), each value an array of market metadata records (name, logo, currency, description/methodology).
      responses:
        '200':
          description: Market catalog keyed by chain id.
          content:
            application/json:
              schema:
                type: object
                additionalProperties:
                  type: array
                  items:
                    $ref: '#/components/schemas/Market'
components:
  schemas:
    Market:
      type: object
      description: Market catalog metadata record.
      properties:
        _id:
          type: string
          example: 66d71b2f72d1c12e59686e23
        marketName:
          type: string
          example: Counter-Strike 2 Skins
        logo:
          type: string
        currency:
          type: string
          example: USD
        descriptionText:
          type: string
          description: What the market tracks + methodology.