# Balancer

**Canonical:** https://apis.io/providers/balancer/  
**Website:** https://balancer.fi/  
**APIs profiled:** 4

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.

## Kin Score — 17.4 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 17.4).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 26.2 |
| Commercial Clarity | 13.2 |
| Access Clarity | 13.2 |

## Agent readiness — 3.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (4)

- **Balancer GraphQL API** — Public GraphQL API used by the Balancer UI and integrators. Provides pools, tokens, swaps, gauges, voting, and analytics across all supported chains.
- **Balancer Subgraph** — Per-chain GraphQL subgraphs published on The Graph for raw indexed Balancer events.
- **Balancer SOR SDK** — Client-side TypeScript / Solidity SDK for the Balancer Smart Order Router; constructs swap routes against current pool state.
- **Balancer Smart Contracts** — 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, Gn...

## Security (1)

- **Balancer Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Balancer Plans Pricing**

## Tags

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

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/balancer/). Scores are computed from the provider's own public artifacts under a published rubric.