generated: '2026-07-21'
method: searched
source:
  - https://docs.tesser.xyz/agentic/mcp-integration
  - https://github.com/tesser-payments/skills
  - openapi/tesser-openapi-original.json
environments:
  - name: production
    api_host: https://api.tesser.xyz
    token_audience: https://api.tesser.xyz
    auth_server: https://tesser-payments.us.auth0.com
    webhook_public_key_constant: WEBHOOK_PUBLIC_KEY
  - name: sandbox
    aka: sandbox / staging
    api_host: https://sandbox.tesserx.co
    token_audience: https://sandbox.tesserx.co
    auth_server: https://dev-awqy75wdabpsnsvu.us.auth0.com
    mcp_endpoint: https://sandbox.tesserx.co/v1/mcp
    webhook_public_key_constant: WEBHOOK_SANDBOX_PUBLIC_KEY
separation:
  model: separate hosts + separate Auth0 audiences and webhook signing keys per environment
simulation_endpoints:
  - operation: openapi/tesser-openapi-original.json#payments_simulateInbound
    path: POST /v1/payments/simulate-inbound
    purpose: Simulate an inbound payment (test the receive/reconcile flow).
  - operation: openapi/tesser-openapi-original.json#treasury_simulateDeposit
    path: POST /v1/treasury/deposits/{id}/simulate
    purpose: Simulate inbound funds for a deposit so the full lifecycle runs without real money.
test_fixtures:
  bank_accounts: >-
    The provider-published setup-openfx skill ships sandbox bank-account fixtures
    (references/sandbox-bank-accounts.md in github.com/tesser-payments/skills) for
    exercising OpenFX onboarding in sandbox.
notes: >-
  In sandbox/staging an agent may run state-changing calls (with confirmation); in
  production, sensitive credential writes stay generate-only. No published card
  numbers (this is a bank/PSP stablecoin platform, not a card acquirer); test data
  is magic simulation endpoints + provider-shipped sandbox account fixtures. Never
  invent test values.