# ChargeGuard Dispute Assistant Muse connector

From musedirectory.ai, the independent directory of Meta Muse connectors. Not affiliated with Meta.

## ChargeGuard Dispute Assistant

Understand chargeback reason codes, winning evidence, and response deadlines across card networks and payment gateways.

- Record: https://musedirectory.ai/connector/chargeguard-dispute-assistant
- Category: Finance & Bills
- Developer: ChargeGuard (https://www.trychargeguard.com)
- Muse status: Extra setup. Not in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
- Health: Working, 1150ms, checked 2026-10-30T03:51:16Z
- Endpoint: https://www.trychargeguard.com/mcp
- Auth: No account needed; Pricing: unknown
- Screening: Screened, no issues found (2026-10-30T03:51:16Z)
- Source: Found in the official MCP Registry (com.trychargeguard/chargeguard) https://registry.modelcontextprotocol.io/v0/servers?search=com.trychargeguard%2Fchargeguard

Helps merchants fight chargebacks by explaining card-network reason codes (Visa, Mastercard, Amex), showing what evidence wins representments, and listing response windows for Stripe, PayPal, Braintree, Adyen, and Shopify Payments. Includes free store audits.

Example request: "I got a chargeback code 4855 from Visa, what evidence do I need to win the dispute and how long do I have?"

How to connect: Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use ChargeGuard Dispute Assistant to help me. It is a free service with an MCP server at https://www.trychargeguard.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.

Tools:
- list_reason_codes: List the 9 card-network chargeback reason codes covered by ChargeGuard (Visa, Mastercard, Amex) with one-line summaries. Use first when the user mentions a chargeback without a code.
- lookup_reason_code: Look up one card-network chargeback reason code: what it means, the evidence that wins the representment, the response window, and the full guide URL. Accepts the code (e.g. '13.2') or a slug fragment (e.g. 'visa-13-2').
- get_response_deadlines: Response windows merchants have to fight a chargeback, per gateway (Stripe, PayPal, Braintree, Adyen, Shopify Payments) and per card network (Visa, Mastercard, Amex).
- request_chargeback_audit: Submit a free ChargeGuard store audit: reviews the merchant's payment setup and dispute risk and emails a written report. Requires the store URL and a contact email.

Screening checks:
- MCP handshake: pass (Answered in 1150ms)
- Domain against threat feeds (Cloudflare security DNS): pass (www.trychargeguard.com not flagged)
- Published packages against the OSV malicious-package database: n/a (No npm or PyPI package published)
- Hidden instructions or invisible characters in tool text: pass (4 tools read, nothing found)
- Inputs asking for passwords, card numbers or seed phrases: pass (None found)
- Domain and redirects: pass (Domain registered 169 days ago)
- AI review of purpose and tool behavior: pass (No concerns)