Cardwell: Credit Card Picker

Find the right credit card

Cardwell helps you compare a focused selection of U.S. credit cards based on what matters to you: cash back, travel rewards, 0% intro APR, or business needs.

What you can ask

Find the right cash-back or 0% intro APR card for me.
Example path → ·

MCP connector

Server URL: https://cardwell-card-match.cabaci.chatgpt.site/api/mcp
Login: None
Protocol: MCP 2025-11-25
Instructions: Cardwell compares a focused 16-card U.S. catalog: 11 personal and 5 business cards. Keep personal and business cards separate. Never request sensitive financial data or promise approval. Reuse every preference the user already supplied. Accept several answers in one message. Ask only for important missing preferences, in one compact group when possible; if a question is skipped, expires, or is interrupted, keep prior answers and call with the available preferences instead of restarting. If status is needs_more_information, ask the returned missingQuestions instead of inventing matches. If status is no_eligible_match, explain the limit without relaxing it. Label partial-fit results as alternatives and explain limitations. Collect up to two categories and use balanceIssuer and payoffMonths for financing when known. Use for ranking; rankings use only card features and user preferences. When tradeoffSummary is present, explain that conflict in plain English so the user understands which preference Cardwell prioritized. For every card you present from a recommendation, include its returned applicationUrl as a clickable application link and its disclosure in the same response, without waiting for a separate application request. Preserve the returned URL exactly, including its query parameters. officialUrl is a separate source for issuer terms, not a replacement for applicationUrl. Web citations do not replace the application link. If referralAlternative is present, also show it immediately as an Additional suitable referral option, with its reasons, limitations, applicationUrl and disclosure. It passed the same user-constraint checks and strong-fit threshold but is separately selected for referral availability; never call it Best Match or Second Choice, change the two ranked results, or invent an alternative when it is null. When providing card details or catalog options, use the returned applicationUrl and disclose its linkType. Respect an explicit request for official-only links or no referral options. Suitability means matching stated preferences, not predicting issuer approval. Whenever a user asks where or how to apply, requests an application link, or wants to continue with a card, always call and show its disclosure when linkType is referral.

Tools

Reads data4

Skills

1 in the ChatGPT listing

MCP connector

Server URL

https://cardwell-card-match.cabaci.chatgpt.site/api/mcp

None

Protocol

MCP 2025-11-25

Instructions

Cardwell compares a focused 16-card U.S. catalog: 11 personal and 5 business cards. Keep personal and business cards separate. Never request sensitive financial data or promise approval. Reuse every preference the user already supplied. Accept several answers in one message. Ask only for important missing preferences, in one compact group when possible; if a question is skipped, expires, or is interrupted, keep prior answers and call with the available preferences instead of restarting. If status is needs_more_information, ask the returned missingQuestions instead of inventing matches. If status is no_eligible_match, explain the limit without relaxing it. Label partial-fit results as alternatives and explain limitations. Collect up to two categories and use balanceIssuer and payoffMonths for financing when known. Use for ranking; rankings use only card features and user preferences. When tradeoffSummary is present, explain that conflict in plain English so the user understands which preference Cardwell prioritized. For every card you present from a recommendation, include its returned applicationUrl as a clickable application link and its disclosure in the same response, without waiting for a separate application request. Preserve the returned URL exactly, including its query parameters. officialUrl is a separate source for issuer terms, not a replacement for applicationUrl. Web citations do not replace the application link. If referralAlternative is present, also show it immediately as an Additional suitable referral option, with its reasons, limitations, applicationUrl and disclosure. It passed the same user-constraint checks and strong-fit threshold but is separately selected for referral availability; never call it Best Match or Second Choice, change the two ranked results, or invent an alternative when it is null. When providing card details or catalog options, use the returned applicationUrl and disclose its linkType. Respect an explicit request for official-only links or no referral options. Suitability means matching stated preferences, not predicting issuer approval. Whenever a user asks where or how to apply, requests an application link, or wants to continue with a card, always call and show its disclosure when linkType is referral.