# Provenance stamped 2026-10-07 (roadmap#943): written by an API Evangelist sweep (dated 2026-06-14 by the file itself), not
# harvested from the provider. `method: generated` so the economics campaign may replace it with a
# dated, verbatim transcription; every figure below is unverified until it does.
method: generated
generated: '2026-06-14'
name: Euler Finance API Plans
description: Euler Finance provides tiered access to its V3 Data API based on authentication level. Unauthenticated requests are permitted with IP-based rate limiting suitable for development and low-volume use. API key authentication unlocks higher rate limits for production applications, dashboards, bots, and risk systems. Contact the Euler team directly to request an API key.
url: https://docs.euler.finance/developers/data-querying/euler-v3-api
created: '2026-06-14'
modified: '2026-06-14'
plans:
  - name: Free (Unauthenticated)
    description: Default access tier for the Euler V3 Data API. Requests are rate-limited by IP address. Suitable for exploration, development, and low-volume integrations. No API key required.
    url: https://docs.euler.finance/developers/data-querying/euler-v3-api
    price: Free
    rateLimits:
      - name: Requests per Minute
        value: 100
        unit: requests/minute
        scope: per IP address
    authentication: None required
    features:
      - Access to all public V3 API endpoints
      - Chain inventory and protocol stats
      - Vault data and history
      - Account positions and activity
      - Token metadata and prices
      - APYs and rewards data
      - Liquidation events
      - Oracle routing data
  - name: Authenticated (API Key)
    description: Enhanced access tier for the Euler V3 Data API using an API key. Provides higher request rate limits suitable for production dashboards, portfolio tools, trading bots, risk monitoring systems, and research workflows. Request an API key by contacting leonard@euler.xyz.
    url: https://docs.euler.finance/developers/data-querying/euler-v3-api
    price: Contact for pricing
    rateLimits:
      - name: Requests per Minute
        value: 1000
        unit: requests/minute
        scope: per API key
    authentication:
      - type: ApiKey
        header: X-API-Key
      - type: BearerToken
        header: Authorization
    contact: leonard@euler.xyz
    features:
      - All Free tier endpoints
      - Higher rate limits (10x)
      - Suitable for production workloads
      - Priority support
x-canonical:
  generated: '2026-10-08'
  vocabulary: all/0-working/economics/plans-canonical.yml
  models:
  - free
  - negotiated
  units: []
  plans:
  - name: Free (Unauthenticated)
    access: other
    model: free
    model_how: derived
    units: []
    periods: []
  - name: Authenticated (API Key)
    access: other
    model: negotiated
    model_how: derived
    units: []
    periods: []