API & Integration

Payment Gateway Integration Spec

Build a provider-aware payment contract with explicit standards and unknown provider rules.

Free. No signup. No data collection.

When to use this tool

Use Payment Gateway Integration Spec when you're scoping a payment integration and need methods, auth, settlement, refunds, and compliance covered before writing a ticket.

Sample input and output

Input: The payment methods you're supporting (cards, Interac, ACH, wallets) and your settlement and compliance needs.

Output: An integration outline covering auth flow, settlement, refunds, scheme-specific requirements, and acceptance tests.

Who this helps

BAs, Product Owners, and technical leads scoping integrations with engineering.

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Output options: Generate results, then download a PDF/export where supported, send the results to email, or continue through related tools in the same workflow.

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The thinking behind this tool comes from real enterprise delivery experience.

If your team is dealing with requirements misalignment, backlog debt, or stakeholder chaos — that's a conversation worth having. 15 minutes, no pitch deck.

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Project Note & Disclaimer: CatalystAgile is a product of human-led product strategy and AI-assisted implementation. The workflows, product requirements, acceptance criteria, validation approach, and UI/UX decisions were directed by the creator; LLMs assisted with implementation. This software and its outputs are provided “as is” without warranty of any kind. The outputs are for educational and informational purposes only and do not constitute professional business, financial, or legal advice. By using these tools, you agree that the creator assumes no liability for any business decisions, damages, or losses resulting from their use.