CN Evidence · Authentication Profile

CN Evidence Authentication

Authentication

CN Evidence secures its APIs with x402-payment across 3 declared security schemes, as derived from its OpenAPI definitions.

CompanyChinaCompany DataDue DiligenceSupplier ScreeningKYBx402PaymentsMCPBusiness Information
Methods: x402-payment Schemes: 3 OAuth flows: API key in:

Security Schemes

x402-v2 payment
X-CN-Recovery-Token apiKey
· in: header ()
none none

Source

Authentication Profile

Raw ↑ 
generated: '2026-11-04'
method: searched
source: https://yangchunhong3000.github.io/cn-evidence-public-docs/buyer-guide.html
docs: https://yangchunhong3000.github.io/cn-evidence-public-docs/buyer-guide.html
summary:
  types:
  - x402-payment
note: The OpenAPI (openapi/_original/cnevidence-com-openapi.json) declares no securitySchemes. Paid endpoints use HTTP x402 v2 payment rather than accounts or API keys. Free endpoints (/free/*) take no credentials.
schemes:
- name: x402-v2
  type: payment
  description: 'Paid /x402/* endpoints answer HTTP 402 Payment Required. The client signs an x402 v2 "exact" EVM payment in USDC on Base mainnet (eip155:8453) and resends the request. Docs: "Payment is x402 v2, exact, USDC on Base mainnet (eip155:8453), not Base Sepolia." and "当前没有预充值 API Key 方案" (there is currently no prepaid API-key option). Native MPP and the old the402 webhook are paused.'
  location: x402 v2 payment headers on the paid request
- name: X-CN-Recovery-Token
  type: apiKey
  in: header
  description: An optional secret the client generates itself (32 random bytes encoded as 64 lowercase hex). It is sent on the paid POST and later used in the body of POST /free/cn/payment/recover to fetch status or the report within 24 hours. This is a recovery credential, not an access key. The server stores only its hash.
- name: none
  type: none
  description: The free catalog, product, preflight, compose, supplement and recovery endpoints take no API key.

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