# Euler Finance **Canonical:** https://apis.io/providers/euler/ **APIs profiled:** 24 Euler is a permissionless modular lending protocol that enables users to lend, borrow, and build custom lending markets without limits. The platform provides REST APIs for querying vaults, account positions, interest rates, liquidation thresholds, token prices, APYs, reward campaigns, and lending market analytics across multiple EVM-compatible networks. ## Kin Score — 40.4 / 100 (developing) Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 40.4). | Facet | Score | |---|---| | Discoverability | 81.5 | | Contract Quality | 53.4 | | Governance | 9.8 | | Contract Governance | 9.8 | | Operational Transparency | 31.6 | | Developer Ergonomics | 28.6 | | Commercial Clarity | 39.5 | | Access Clarity | 39.5 | ## Agent readiness — 41.9 (agent-ready) | Dimension | Value | |---|---| | Spec Presence | yes | | Agentic Access | derived | | Reversibility Documented | no | | MCP Server | no | | Auth Clarity | yes | | Idempotency | no | | Error Semantics | verified | | OpenAPI Examples | partial | | Rate Limit Signal | verified | | Event Surface Described | no | | Agent Skills | no | | Well Known Catalog | no | | Consent Identity | no | | Agent Card | no | | Dry Run Mode | no | ## Access Free · Self-serve signup — onboarding: self-serve, pricing: free, trial: no (confidence: high). ## APIs (24) - **Euler Off-Chain Prices API** — An unofficial REST endpoint for fetching USD-denominated asset prices for ERC-20 tokens across supported networks. Accepts chainId and comma-separated asset addresses. Returns p... - **Euler Subgraphs (GraphQL)** — GraphQL-based subgraph endpoints hosted on Goldsky for querying indexed Euler V2 protocol data including vault states, account positions, borrow/supply history, interest rates, ... - **Euler V2 TypeScript SDK** — The recommended TypeScript entry point for applications, bots, scripts, and operational tooling built on Euler V2. Provides protocol data fetching, EVC batch composition, transa... - **Euler Finance Accounts API** — Account activity, discovered positions, and sub-account relationships. Legacy nested account payloads are flattened into account-vault rows in v3. - **Euler Finance APYs API** — Base and intrinsic APY surfaces. In v3, APY families are split into dedicated endpoints instead of being embedded inconsistently across larger payloads. - **Euler Finance Auth API** — Authentication and authorization conventions used across the API, including API keys, admin secrets, and rate-limit behavior. - **Euler Finance Chains API** — Chain inventory and per-chain protocol summaries. These replace ad-hoc chain-level aggregates from legacy APIs with explicit, cacheable resources. - **Euler Finance Curator API** — Curator-managed metadata such as labels, descriptions, and visibility controls. This is the operator-owned customization surface in v3. - **Euler Finance Earn API** — Euler Earn vault resources and historical data. These endpoints are separate from EVK vaults and should be modeled independently in client code. - **Euler Finance Entities API** — Platform-admin managed KYBed organization profiles used as backend-owned label and control-plane resources. - **Euler Finance EVC API** — Ethereum Vault Connector account event resources. These are separate from account position snapshots and are intended for event-level inspection. - **Euler Finance FeeFlow API** — Fee-flow event resources and fee-related historical activity. - **Euler Finance GraphQL API** — Controlled GraphQL passthrough endpoints for indexer-backed data exploration and compatibility workflows. - **Euler Finance Health API** — Liveness, readiness, and dashboard-friendly platform status checks. Use these for operational monitoring, not for reconstructing full portfolio state. - **Euler Finance Liquidations API** — Liquidation events and related historical views used for risk analysis and monitoring. - **Euler Finance Oracles API** — Oracle routing, adapter, and price-source inspection endpoints. These expose pricing/oracle internals that were previously harder to inspect externally. - **Euler Finance Prices API** — Current and historical token prices. Prices follow v3 source priority rules and return the canonical merged value rather than exposing raw provider-specific reads by default. - **Euler Finance Protocol API** — Protocol-wide summary endpoints and aggregate metrics. In v3, these endpoints are explicitly summary-oriented and should be treated as lightweight rollups rather than replacemen... - **Euler Finance PublicAllocator API** — Public allocator event resources for allocator-level activity and history. - **Euler Finance Rewards API** — Reward campaign APRs and per-account reward breakdowns. Rewards APY is intentionally separate from base vault APY in v3; combine them client-side when you need a legacy-style to... - **Euler Finance TermsOfUse API** — Terms-of-use signature state and audit endpoints. - **Euler Finance Tokens API** — Token metadata, protocol classifications, and related static reference data used throughout the API. - **Euler Finance Usage API** — API usage and API key analytics. These endpoints are intended for operators and consumers tracking traffic, rate limits, and key-level activity. - **Euler Finance Vaults API** — Canonical vault resources, vault history, holders, borrowers, and open-interest views. In v3, vault detail is decomposed into focused endpoints instead of one large legacy respo... ## Agentic access (1) - **Euler Agentic Access** — 91 operations · 19 acting · 3 human-in-the-loop ## Security (3) - **Euler Authentication** — apiKey/http · 5 schemes - **Euler Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC - **Euler Vulnerability Disclosure** — security.txt · contact published ## Plans (1) - **Plans** ## Tags DeFi, Lending, Borrowing, Finance, Ethereum, Blockchain, Vault, Liquidation, Interest Rates, Permissionless --- Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/euler/). Scores are computed from the provider's own public artifacts under a published rubric.