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

# TVL & Collateral

> Protocol collateral: current net (deposited - withdrawn) plus a daily net-flow series.

Protocol collateral: current net (deposited minus withdrawn), which approximates pUSD held by the exchange, plus a daily net-flow series.


## OpenAPI

````yaml GET /v3/perps/tvl
openapi: 3.1.0
info:
  title: PolyNode API
  description: >-
    Real-time Polymarket data API with decoded mempool settlements, OHLCV
    candles, and full Polygon JSON-RPC proxy.
  contact:
    name: PolyNode
    url: https://polynode.dev
  license:
    name: ''
  version: 2.0.0
servers:
  - url: https://api.polynode.dev
    description: Production
security:
  - api_key: []
paths:
  /v3/perps/tvl:
    get:
      tags:
        - Perps
      summary: TVL / collateral
      description: >-
        Protocol collateral: current net (deposited - withdrawn) plus a daily
        net-flow series.
      parameters:
        - name: limit
          in: query
          required: false
          description: Max rows.
          schema:
            type: integer
      responses:
        '200':
          description: Success
          content:
            application/json:
              example:
                deposited_usd: '28959084.48'
                withdrawn_usd: '6355479.06'
                net_usd: '22603605.42'
                daily_net_flow:
                  - day: 1783555200000
                    net_flow_usd: '-8523.69'
components:
  securitySchemes:
    api_key:
      type: apiKey
      in: header
      name: x-api-key

````