generated: '2026-09-19'
method: searched
source: https://data.charitysense.com/INSTRUCTIONS_FOR_AGENTS.md
docs:
- https://data.charitysense.com/llms-full.txt
- https://data.charitysense.com/contact?interest=api-access
plan_count: 2
currency: USD
prices_published: false
model: Free metered public tier plus a paid key arranged through a contact form; no published price list.
probes:
- url: https://data.charitysense.com/pricing
  status: 404
- url: https://charitysense.com/pricing
  status: 404
- url: https://data.charitysense.com/contact?interest=api-access
  status: 200
  note: Contact form (SPA); the access request path the API's 403 UpgradeURL points at.
plans:
- id: public-research
  name: Public research reads
  price: 0
  currency: USD
  period: null
  signup: none - no account or key required
  included:
  - GET /api/v2/health, /search, /charity/{ein}/page, /charity/{ein}/sections/{SectionId}, /charity/{ein}/filings
  - 1,000 requests per UTC calendar day per client
  - RateLimit-Limit / RateLimit-Remaining / RateLimit-Reset headers on every response
  excluded:
  - All Advanced operations (derived reads, assistant, feedback) - 403 EntitlementRequired
  evidence: >-
    OpenAPI info.description: "Research data reads are available without a token and are limited to 1,000
    requests per UTC day per client." Confirmed live 2026-09-19.
- id: paid-key
  name: Paid API key (Advanced access)
  price: null
  currency: USD
  period: null
  signup: https://data.charitysense.com/contact?interest=api-access
  included:
  - All 21 operations, sent with Authorization Bearer <token> or X-CharitySense-API-Key
  - 'Default daily allowances: 100,000 Data requests and 250 Advanced requests per key ("normal paid defaults")'
  - GET /api/v2/usage to read the key's own Limit / Used / Remaining / ResetAt without consuming allowance
  - UsageSummary.Tier values Paid | Site | Internal suggest additional non-public tiers exist
  evidence: >-
    INSTRUCTIONS_FOR_AGENTS.md: "Paid keys have per-key daily Data and Advanced limits; the normal paid defaults are
    100,000 data requests and 250 Advanced requests. Request access at
    https://data.charitysense.com/contact?interest=api-access."
  note: >-
    No price, billing period or overage rate is published anywhere reachable (no /pricing on either host, no
    price in the agent card, ai-profile, llms.txt or instructions). price is null rather than guessed.