aid: balancer
url: https://raw.githubusercontent.com/api-evangelist/balancer/refs/heads/main/apis.yml
name: Balancer
x-type: protocol
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Web3
  - DeFi
  - DEX
  - AMM
  - Liquidity
  - Multi-chain
  - GraphQL
  - Smart Order Router
  - Open Source
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
description: >-
  Balancer is a DeFi AMM and programmable liquidity platform supporting weighted, stable, and
  custom pools (v2 and v3). Balancer publishes a public GraphQL API at api-v3.balancer.fi for
  pool, swap, and analytics data, plus per-chain subgraph endpoints. Smart-contract entry
  points (Vault and Router) are the primary write surface; SDKs wrap the SOR (Smart Order
  Router) for client-side route construction.
apis:
  - aid: balancer:graphql-api
    name: Balancer GraphQL API
    tags:
      - GraphQL
      - Pools
      - Swaps
      - Liquidity
      - Analytics
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://api-v3.balancer.fi/
    humanURL: https://docs.balancer.fi/data-and-analytics/data-and-analytics/api.html
    description: >-
      Public GraphQL API used by the Balancer UI and integrators. Provides pools, tokens, swaps,
      gauges, voting, and analytics across all supported chains.
    properties:
      - type: Documentation
        url: https://docs.balancer.fi/data-and-analytics/data-and-analytics/api.html
      - type: GitHub
        url: https://github.com/balancer/api
    x-features:
      - GraphQL across all chains in one endpoint
      - Pool, swap, and gauge schema
      - Powers the Balancer UI
    x-use-cases:
      - Indexing Balancer liquidity for analytics
      - Building Balancer dashboards
      - Sourcing pool APRs
  - aid: balancer:subgraph
    name: Balancer Subgraph
    tags:
      - Subgraph
      - The Graph
      - Indexer
      - GraphQL
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://api.thegraph.com/subgraphs/name/balancer-labs
    humanURL: https://docs.balancer.fi/data-and-analytics/data-and-analytics/subgraph.html
    description: Per-chain GraphQL subgraphs published on The Graph for raw indexed Balancer events.
    properties:
      - type: Documentation
        url: https://docs.balancer.fi/data-and-analytics/data-and-analytics/subgraph.html
    x-features:
      - Per-chain GraphQL subgraph
      - Raw event-level indexing
    x-use-cases:
      - Custom analytics
      - Reconciling on-chain to off-chain data
  - aid: balancer:sor-sdk
    name: Balancer SOR SDK
    tags:
      - SDK
      - Smart Order Router
      - Solidity
      - JavaScript
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://github.com/balancer/b-sdk
    humanURL: https://docs.balancer.fi/integration-guides/swapping/swaps-with-sor-sdk.html
    description: Client-side TypeScript / Solidity SDK for the Balancer Smart Order Router; constructs swap routes against current pool state.
    properties:
      - type: Documentation
        url: https://docs.balancer.fi/integration-guides/swapping/swaps-with-sor-sdk.html
      - type: GitHub
        url: https://github.com/balancer/b-sdk
    x-features:
      - Client-side SOR
      - Multihop swap routing
      - Built-in gas estimation
    x-use-cases:
      - Aggregator integrations
      - Custom swap UIs
  - aid: balancer:smart-contracts
    name: Balancer Smart Contracts
    tags:
      - Smart Contracts
      - On-chain
      - Vault
      - Router
    image: https://kinlane-productions2.s3.amazonaws.com/apis-json/apis-json-logo.jpg
    baseURL: https://etherscan.io/address/balancer.fi
    humanURL: https://docs.balancer.fi/concepts/vault/
    description: Vault and Router smart contracts where swaps and liquidity actions are executed on-chain. v2 and v3 versions deployed across Ethereum, Arbitrum, Optimism, Polygon, Avalanche, Gnosis, etc.
    properties:
      - type: Documentation
        url: https://docs.balancer.fi/concepts/vault/
      - type: GitHub
        url: https://github.com/balancer/balancer-v2-monorepo
    x-features:
      - Vault architecture
      - Weighted, Stable, Composable Stable, Custom pools
      - veBAL governance
    x-use-cases:
      - Direct pool execution
      - Liquidity provisioning
common:
  - type: Portal
    url: https://balancer.fi/
  - type: Documentation
    url: https://docs.balancer.fi/
  - type: GitHub
    url: https://github.com/balancer
  - type: Forum
    url: https://forum.balancer.fi/
  - type: Plans
    url: plans/balancer-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/balancer-rate-limits.yml
  - type: FinOps
    url: finops/balancer-finops.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com