Balancer (balancer)

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 plus per-chain subgraphs. Smart-contract entry points (Vault and Router) are the primary write surface.

URL: Visit APIs.json URL

Type

• x-type: protocol

Tags

• Web3, DeFi, DEX, AMM, Liquidity, Multi-chain, GraphQL, Smart Order Router, Open Source

APIs

• Balancer GraphQL API (https://api-v3.balancer.fi/) - public, GraphQL
• Balancer Subgraph (https://api.thegraph.com/subgraphs/name/balancer-labs) - per-chain
• Balancer SOR SDK (https://github.com/balancer/b-sdk) - client-side router
• Balancer Smart Contracts - Vault and Router on multiple chains

Notes on OpenAPI

Balancer publishes a GraphQL schema rather than OpenAPI; introspection from the GraphQL endpoint is the canonical reference.

Timestamps

• Created: 2026-05-08
• Modified: 2026-05-08

Common Properties

• Portal
• Documentation
• GitHub
• Forum
• Plans - reconciled (open API + on-chain fee)
• RateLimits - partially reconciled (fair-use)
• FinOps - reconciled FOCUS-aligned

Maintainers

FN: Kin Lane

Email: kin@apievangelist.com