Refund Decide — deterministic notary for US subscriptions. Verify subscription refund eligibility and prevent subscripti
by Add new capabilities to Claude beyond text generation
Example: Access external data sources, execute code, interact with tools and services
Transform Claude from chatbot to action-taking agent
Provide Claude with access to relevant context and data
Example: Load project documentation, access knowledge bases, query databases
Get more accurate, context-aware responses
Automate multi-step workflows combining AI and external tools
Example: Research → Summarize → Create document → Send notification
Complete complex tasks end-to-end without manual steps
Time estimate: 15-60 minutes depending on server complexity
Prerequisites
Asana
MCP server for Asana — enables Claude to interact with Asana data and workflows.
Shadcn io
MCP server connects Claude and AI coding tools to shadcn/ui components. Accurate TypeScript props and React component da
BigQuery
MCP server for BigQuery — enables Claude to interact with BigQuery data and workflows.
Square
MCP server for Square — enables Claude to interact with Square data and workflows.
Notion
MCP server for Notion — enables Claude to interact with Notion data and workflows.
MCP Use
Refund Decide reduced integration guesswork — categories and install configs on the listing matched the upstream repo.
Refund Decide is among the better-indexed MCP projects we tried; the explainx.ai summary tracks the official description.
I recommend Refund Decide for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.
I recommend Refund Decide for teams standardizing on MCP; the explainx.ai page compares cleanly with sibling servers.
According to our notes, Refund Decide benefits from clear Model Context Protocol framing — fewer ambiguous “AI plugin” claims.
Refund Decide has been reliable for tool-calling workflows; the MCP profile page is a good permalink for internal docs.
Strong directory entry: Refund Decide surfaces stars and publisher context so we could sanity-check maintenance before adopting.
Strong directory entry: Refund Decide surfaces stars and publisher context so we could sanity-check maintenance before adopting.
We wired Refund Decide into a staging workspace; the listing’s GitHub and npm pointers saved time versus hunting across READMEs.
Refund Decide is a well-scoped MCP server in the explainx.ai directory — install snippets and categories matched our Claude Code setup.
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Claude Desktop configuration
{
"mcpServers": {
"refund-decide": {
"url": "https://refund.decide.fyi/api/mcp",
"env": null,
"headers": null
}
}
}Provides automated refund eligibility decisions for US consumer subscriptions using deterministic rules. Acts as a neutral notary service to determine if customers qualify for refunds.
Refund Decide is a community-built MCP server published by ndkasndakn that provides AI assistants with tools and capabilities via the Model Context Protocol. Refund Decide — deterministic notary for US subscriptions. Verify subscription refund eligibility and prevent subscripti It is categorized under finance, developer tools.
You can install Refund Decide in your AI client of choice. Use the install panel on this page to get one-click setup for Cursor, Claude Desktop, VS Code, and other MCP-compatible clients. This server supports remote connections over HTTP, so no local installation is required.
Decision API + MCP notaries for deterministic system and agent decisions
Buttons install the Refund Notary server. To add all 4 servers, use the JSON config below.
| Server | Domain | Tool | Verdicts |
|---|---|---|---|
| Refund Notary | refund.decide.fyi | refund_eligibility | ALLOWED / DENIED / UNKNOWN |
| Cancel Notary | cancel.decide.fyi | cancellation_penalty | FREE_CANCEL / PENALTY / LOCKED / UNKNOWN |
| Return Notary | return.decide.fyi | return_eligibility | RETURNABLE / EXPIRED / NON_RETURNABLE / UNKNOWN |
| Trial Notary | trial.decide.fyi | trial_terms | TRIAL_AVAILABLE / NO_TRIAL / UNKNOWN |
All servers: 100 vendors, US region, individual plans, stateless, no auth, 100 req/min.
{
"mcpServers": {
"refund-decide": { "url": "https://refund.decide.fyi/api/mcp" },
"cancel-decide": { "url": "https://cancel.decide.fyi/api/mcp" },
"return-decide": { "url": "https://return.decide.fyi/api/mcp" },
"trial-decide": { "url": "https://trial.decide.fyi/api/mcp" }
}
}
# Refund eligibility
curl -X POST https://refund.decide.fyi/api/v1/refund/eligibility \
-H "Content-Type: application/json" \
-d '{"vendor":"adobe","days_since_purchase":12,"region":"US","plan":"individual"}'
# Cancellation penalty
curl -X POST https://cancel.decide.fyi/api/v1/cancel/penalty \
-H "Content-Type: application/json" \
-d '{"vendor":"adobe","region":"US","plan":"individual"}'
# Return eligibility
curl -X POST https://return.decide.fyi/api/v1/return/eligibility \
-H "Content-Type: application/json" \
-d '{"vendor":"adobe","days_since_purchase":12,"region":"US","plan":"individual"}'
# Trial terms
curl -X POST https://trial.decide.fyi/api/v1/trial/terms \
-H "Content-Type: application/json" \
-d '{"vendor":"adobe","region":"US","plan":"individual"}'
Start local dev server:
npx vercel dev
In a separate terminal:
# Handler-level smoke checks (no running server required)
npm run smoke
# MCP endpoint checks (requires vercel dev running on localhost:3000)
npm run mcp:check
# End-to-end workflow fixture (example -> result)
npm run workflow:test
Use workflow endpoints when you want one request to return:
yes | no | tie) from /api/deciderequest_idEndpoints
POST https://refund.decide.fyi/api/v1/workflows/zendesk/refundPOST https://cancel.decide.fyi/api/v1/workflows/zendesk/cancelPOST https://return.decide.fyi/api/v1/workflows/zendesk/returnPOST https://trial.decide.fyi/api/v1/workflows/zendesk/trial{
"ticket_id": "ZD-9001",
"workflow_type": "refund",
"question": "Should this Adobe annual plan refund request proceed under policy?",
"vendor": "adobe",
"region": "US",
"plan": "individual",
"days_since_purchase": 5
}
For refund and return, include days_since_purchase.
Set decision_override to bypass model classification during fixtures and CI:
{
"decision_override": "yes"
}
{
"ok": true,
"flow": "zendesk_refund_v1",
"ticket_id": "ZD-9001",
"decision": { "c": "yes", "request_id": "req_123" },
"policy": { "verdict": "ALLOWED", "code": "WITHIN_WINDOW" },
"action": {
"type": "approve_refund",
"zendesk_tags": ["decide", "decide_yes", "refund_allowed"]
}
}
Endpoint: POST https://refund.decide.fyi/api/v1/refund/eligibility
MCP Tool: refund_eligibility
Checks if a subscription purchase is within the vendor's refund window.
Input: vendor, days_since_purchase, region, plan
{"refundable":true,"verdict":"ALLOWED","code":"WITHIN_WINDOW","message":"Refund is allowed. Purchase is 12 day(s) old, within 14 day window.","vendor":"adobe","window_days":14}
Codes: WITHIN_WINDOW, OUTSIDE_WINDOW, NO_REFUNDS, UNSUPPORTED_VENDOR
Endpoint: POST https://cancel.decide.fyi/api/v1/cancel/penalty
MCP Tool: cancellation_penalty
Checks cancellation penalties — early termination fees, contract locks, or free cancellation.
Input: vendor, region, plan
{"verdict":"PENALTY","code":"EARLY_TERMINATION_FEE","message":"adobe charges an early termination fee: 50% of remaining months on annual plan.","vendor":"adobe","policy":"etf"}
Codes: NO_PENALTY, EARLY_TERMINATION_FEE, CONTRACT_LOCKED, UNSUPPORTED_VENDOR
Endpoint: POST https://return.decide.fyi/api/v1/return/eligibility
MCP Tool: return_eligibility
Checks if a subscription purchase can be returned/reversed, with return type and method.
Input: vendor, days_since_purchase, region, plan
{"returnable":true,"verdict":"RETURNABLE","code":"FULL_RETURN","message":"Return is available. Purchase is 5 day(s) old, within 14-day window.","vendor":"adobe","return_type":"full_refund","method":"self_service"}
Codes: FULL_RETURN, PRORATED_RETURN, CREDIT_RETURN, OUTSIDE_WINDOW, NO_RETURNS, UNSUPPORTED_VENDOR
Endpoint: POST https://trial.decide.fyi/api/v1/trial/terms
MCP Tool: trial_terms
Checks free trial availability, length, card requirement, and auto-conversion status.
Input: vendor, region, plan
{"verdict":"TRIAL_AVAILABLE","code":"AUTO_CONVERTS","message":"adobe offers a 7-day free trial. Credit card required. Auto-converts to paid plan.","vendor":"adobe","trial_days":7,"card_required":true,"auto_converts":true}
Codes: AUTO_CONVERTS, NO_AUTO_CONVERT, TRIAL_NOT_AVAILABLE, UNSUPPORTED_VENDOR
| Vendor | Identifier | Refund | Cancel | Return | Trial |
|---|---|---|---|---|---|
| 1Password | 1password | No refunds | Free | No return | 14d |
| Adobe | adobe | 14d | ETF | 14d full | 7d |
| Amazon Prime | amazon_prime | 3d | Free | 3d full | 30d |
| Apple App Store | apple_app_store | 14d | Free | 14d full | - |
| Apple Music | apple_music | No refunds | Free | No return | 30d |
| Apple TV+ | apple_tv_plus | No refunds | Free | No return | 7d |
| Audible | audible | No refunds | Free | No return | 30d |
| Bitwarden | bitwarden | 30d | Free | 30d full | 7d |
| Bumble | bumble | No refunds | Free | No return | 7d |
| Calm | calm | 30d | Free | 30d full | 7d |
| Canva | canva | No refunds | Free | No return | 30d |
| ChatGPT Plus | chatgpt_plus | No refunds | Free | No return | - |
| Claude Pro | claude_pro | No refunds | Free | No return | - |
| Coursera Plus | coursera_plus | 14d | Free | 14d full | 7d |
| Crunchyroll | crunchyroll | No refunds | Free | No return | 7d |
| Deezer | deezer | No refunds | Free | No return | 30d |
| Disney+ | disney_plus | No refunds | Free | No return | - |
| DoorDash DashPass | doordash_dashpass | No refunds | Free | No return | 30d |
| Dropbox (US) | dropbox_us | No refunds | Free | No return | 30d |
| Duolingo | duolingo | No refunds | Free | No return | 14d |
| Evernote | evernote | 20d | Free | 20d full | 14d |
| ExpressVPN | expressvpn | 30d | Free | 30d full | 7d |
| Figma | figma | No refunds | Free | No return | 30d |
| Fubo TV | fubo_tv | No refunds | Free | No return | 7d |
| GitHub Pro | github_pro | No refunds | Free | No return | - |
| Google Play | google_play | 2d | Free | 2d full | - |
| Grammarly | grammarly | No refunds | Free | No return | 7d |
| Headspace | headspace | No refunds | Free | No return | 7d |
| HelloFresh | hellofresh | No refunds | Free (5d notice) | No return | - |
| Hinge | hinge | No refunds | Free | No return | 7d |
| Hulu | hulu | No refunds | Free | No return | 30d |
| iCloud+ | icloud_plus | 14d | Free | 14d full | - |
| Instacart+ | instacart_plus | 5d | Free | 5d full | 14d |
| LinkedIn Premium | linkedin_premium | 7d | Free | 7d full | 30d |
| MasterClass | masterclass | 30d | Free | 30d full | - |
| Max (HBO) | max | No refunds | Free | No return | - |
| Microsoft 365 | microsoft_365 | 30d | Free | 30d full | 30d |
| Midjourney | midjourney | No refunds | Free | No return | - |
| Netfli |
Steps
Troubleshooting
✓ Do
✗ Don't
💡 Pro Tips
Architecture
Model Context Protocol standardizes how AI hosts (Claude, Cursor) communicate with external tools and data sources through server implementations.
Protocols
Compatibility
✓ Use when
Use when you need Claude to access external data, execute actions, or integrate with tools. Best for extending AI capabilities beyond conversation.
✗ Avoid when
Avoid when native integrations exist (use official APIs directly), for real-time critical systems, or when security/compliance requires zero external dependencies.
The fullstack MCP framework for developing MCP apps for ChatGPT, Claude, and building MCP servers for AI agents. Connect