generated: '2026-07-21' method: searched source: https://developers.tackle.io/reference + llms.txt model: Tackle provisions dedicated test/demo vendor accounts; there is no public shared sandbox key or test-card catalog (Tackle is not a card processor). test_vendor_accounts: Vendor accounts can be provisioned for use in a test environment; certain operations are routable only for those accounts and simulate cloud-side responses. test_only_operations: - service: cosell-aws operation: createInvitation note: Creates a simulated invitation; production vendors receive 403. - service: cosell-aws operation: updateOpportunity note: Sub-operations acceptOpportunity / rejectOpportunity simulate AWS responses (test/demo only). - service: cosell-gcp operation: updateOpportunity note: Sub-operations acceptOpportunity, rejectOpportunity, closeByAdminOpportunity, confirmCloseWon/LostOpportunity simulate Google-side actions. - service: cosell-aws operation: listSolutions note: Returns a fixed three-solution fixture for test vendors (query params ignored). dry_run: service: offers-aws operation: createPrivateOffer note: Set dry_run:true to validate the payload without persisting; a successful dry run returns 200 instead of 201. webhook_testing: endpoint: POST https://api.tackle.io/v1/webhooks/test note: Send a test payload for a product/event_type; forward_to_url can override the target for dev/staging.