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Testing Connect in Development

Use the simulation endpoint to queue Connect behaviors in your development environment: 
curl https://dev.methodfi.com/simulate/entities/{entity_id}/connect \
  -X POST \
  -H "Method-Version: 2025-12-01" \
  -H "Authorization: Bearer sk_test_xxx" \
  -H "Content-Type: application/json" \
  -d '{ "behaviors": ["new_credit_card_account", "new_auto_loan_account"] }'
Each behavior is consumed the next time Connect runs for that Entity. Maximum 5 behaviors per Entity. Available behaviors: new_credit_card_account, new_auto_loan_account, new_mortgage_account, new_student_loan_account, new_personal_loan_account.
Simulation limitations. Simulated accounts won’t have real institution data. Use them to test your integration flow (webhooks, UI rendering, product execution), not data accuracy.
For the full simulation API, see the Simulate Connect reference.