generated: '2026-09-03'
method: searched
source: https://schemasure.com/llms.txt ("Try free on legacy V1")
note: >-
  No separate sandbox environment or test keys exist (there are no keys at all). The published
  evaluation surface is the legacy V1 endpoint: 3 free calls per client on POST /extract, no
  payment header needed. The V2 production endpoints are deliberately paid from the first call so
  agents and marketplaces always receive a consistent 402 challenge. All values below are the
  provider's published ones; nothing is invented.
evaluation:
  endpoint: POST https://schemasure.com/extract
  free_calls_per_client: 3
  payment_header_required: false
  after_allowance: legacy x402 V1 X-PAYMENT flow
  scope: text/HTML only — image extraction has intentionally no free or V1 route
test_credentials: none (keyless x402 model; paid calls require a caller-owned Base wallet)
test_clocks: none
fixtures: >-
  llms.txt publishes canonical example request bodies for both V2 endpoints (invoice text example
  and base64 image example) that can be replayed verbatim.