aid: conceptnet
name: ConceptNet Plans & Pricing
description: >-
  ConceptNet is free and open-source. There are no paid tiers, API keys, or
  subscription plans. The public REST API at api.conceptnet.io is available
  to anyone at no cost under the CC BY-SA 4.0 license. Users who need higher
  throughput or private deployments can self-host the full ConceptNet database
  using the open-source codebase.
plans:
  - name: Free Public API
    description: >-
      Unlimited, unauthenticated access to the ConceptNet REST API hosted at
      api.conceptnet.io. No registration or API key is required. Rate limits
      apply to ensure fair use across all users.
    price: 0
    currency: USD
    unit: per request
    rateLimit: 3600 requests per hour
    features:
      - All endpoints (node lookup, query, related, relatedness, URI)
      - JSON-LD response format
      - 100+ language support
      - No authentication required
      - Open data under CC BY-SA 4.0
  - name: Self-Hosted
    description: >-
      Download and run ConceptNet locally using the open-source Python
      codebase. Requires a Unix environment, Python 3.5+, and 30 GB RAM.
      No rate limits apply to local instances.
    price: 0
    currency: USD
    unit: self-managed
    features:
      - No rate limits
      - Full database access
      - Local Python API (AssertionFinder)
      - Custom builds possible
      - Requires significant hardware resources