PayPal, guarded

io.github.Fizzl13/paypal-guardv0.2.1Other

PayPal's Agent Toolkit with limits on refunds and the owner's Approve/Deny above them.

The current version, v0.2.1, was published to the official MCP registry on 2026-10-22. It is distributed as fizzl-paypal-guard-mcp on npm, filed under Other by this index, and declares 13 environment variables. Removals and unreachable sources are measured across every server this index tracks, contract drift across the servers that answer in consecutive snapshots; the index's current counts put this record in context.

In-path gate · all MCP tools

Using PayPal, guarded in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-11-21 11:01 UTC

screened 2026-10-22tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“Tool provides PayPal refund limits and owner approval.”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Test a description on the public screen → It is a separate check from the verdict above, so the two can differ.

That verdict was true at screening time (snapshot 2026-11-06).

Contracts can change after screening, with no version bump. The gate pins PayPal, guarded’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Cite this record

People vet a server before wiring it in. One line on your project site or docs answers that with an independent record: screening verdict, registry provenance, contract drift history. It stays current as new screens and drift events land.

Markdown

[Independent trust record for PayPal, guarded](https://mcpindex.ai/server/io-github-fizzl13-paypal-guard) - screening verdict, registry provenance, and contract drift monitoring.

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<a href="https://mcpindex.ai/server/io-github-fizzl13-paypal-guard">Independent trust record for PayPal, guarded</a> - screening verdict, registry provenance, and contract drift monitoring.

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A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-fizzl13-paypal-guard)](https://mcpindex.ai/server/io-github-fizzl13-paypal-guard)

HTML

<a href="https://mcpindex.ai/server/io-github-fizzl13-paypal-guard"><img src="https://mcpindex.ai/api/v1/badge/io-github-fizzl13-paypal-guard" alt="mcpindex verdict" height="20" /></a>

Environment variables

PAYPAL_CLIENT_ID

required

Client ID of your PayPal REST app (developer.paypal.com)

PAYPAL_CLIENT_SECRET

requiredsecret

Secret of your PayPal REST app

PAYPAL_ENVIRONMENT

SANDBOX (default) or PRODUCTION

LIMIT_REFUND

Most per refund without asking you (default 25.00)

LIMIT_REFUND_PER_DAY

Refunds a day in total (default 100.00)

LIMIT_REFUNDS_PER_DAY

Number of refunds a day (default 10)

LIMIT_CURRENCY

Currency of the limits (default USD)

GUARD_POLICY

Other rules as JSON, e.g. {"dispute":"deny","stop":"ask"}

FIZZL_AGENT_KEY

secret

Approvals in the Fizzl Agent Wallet (Telegram + dashboard): an agent key awk_… from wallet.fizzl.eu

TELEGRAM_BOT_TOKEN

secret

Approvals through your own Telegram bot

TELEGRAM_CHAT_ID

Your Telegram chat id (approvals go only there)

APPROVAL_IN_CHAT

off to never ask in the chat app (MCP elicitation)

APPROVAL_MINUTES

How long you have to answer (default 10)

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

Alternatives in Other

Apogee: Bulk Ad Launcher for Meta, TikTok & Snapchat

ad.apogee/apogee

Bulk-launch and manage ads across many Meta, TikTok and Snapchat ad accounts for agencies.

Agentgates Compute

ai.agentgates/compute

Confidential computers for AI swarms: sealed VMs (Intel TDX) by the hour, USDC over x402.

PlainText Wallet Approval Checker

io.github.Fizzl13/plaintext-wallet-checker

Explains wallet approvals and signature requests in plain language: SAFE, CAUTION or RISK.

Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "paypal-guard": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "fizzl-paypal-guard-mcp"
      ],
      "env": {
        "PAYPAL_CLIENT_ID": "<paypal_client_id>",
        "PAYPAL_CLIENT_SECRET": "<your-paypal_client_secret>",
        "PAYPAL_ENVIRONMENT": "<paypal_environment>",
        "LIMIT_REFUND": "<limit_refund>",
        "LIMIT_REFUND_PER_DAY": "<limit_refund_per_day>",
        "LIMIT_REFUNDS_PER_DAY": "<limit_refunds_per_day>",
        "LIMIT_CURRENCY": "<limit_currency>",
        "GUARD_POLICY": "<guard_policy>",
        "FIZZL_AGENT_KEY": "<your-fizzl_agent_key>",
        "TELEGRAM_BOT_TOKEN": "<your-telegram_bot_token>",
        "TELEGRAM_CHAT_ID": "<telegram_chat_id>",
        "APPROVAL_IN_CHAT": "<approval_in_chat>",
        "APPROVAL_MINUTES": "<approval_minutes>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "paypal-guard": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "fizzl-paypal-guard-mcp"
      ],
      "env": {
        "PAYPAL_CLIENT_ID": "<paypal_client_id>",
        "PAYPAL_CLIENT_SECRET": "<your-paypal_client_secret>",
        "PAYPAL_ENVIRONMENT": "<paypal_environment>",
        "LIMIT_REFUND": "<limit_refund>",
        "LIMIT_REFUND_PER_DAY": "<limit_refund_per_day>",
        "LIMIT_REFUNDS_PER_DAY": "<limit_refunds_per_day>",
        "LIMIT_CURRENCY": "<limit_currency>",
        "GUARD_POLICY": "<guard_policy>",
        "FIZZL_AGENT_KEY": "<your-fizzl_agent_key>",
        "TELEGRAM_BOT_TOKEN": "<your-telegram_bot_token>",
        "TELEGRAM_CHAT_ID": "<telegram_chat_id>",
        "APPROVAL_IN_CHAT": "<approval_in_chat>",
        "APPROVAL_MINUTES": "<approval_minutes>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

{
  "mcpServers": {
    "paypal-guard": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "fizzl-paypal-guard-mcp"
      ],
      "env": {
        "PAYPAL_CLIENT_ID": "<paypal_client_id>",
        "PAYPAL_CLIENT_SECRET": "<your-paypal_client_secret>",
        "PAYPAL_ENVIRONMENT": "<paypal_environment>",
        "LIMIT_REFUND": "<limit_refund>",
        "LIMIT_REFUND_PER_DAY": "<limit_refund_per_day>",
        "LIMIT_REFUNDS_PER_DAY": "<limit_refunds_per_day>",
        "LIMIT_CURRENCY": "<limit_currency>",
        "GUARD_POLICY": "<guard_policy>",
        "FIZZL_AGENT_KEY": "<your-fizzl_agent_key>",
        "TELEGRAM_BOT_TOKEN": "<your-telegram_bot_token>",
        "TELEGRAM_CHAT_ID": "<telegram_chat_id>",
        "APPROVAL_IN_CHAT": "<approval_in_chat>",
        "APPROVAL_MINUTES": "<approval_minutes>"
      }
    }
  }
}

Zed (~/.config/zed/settings.json)

Merge into the context_servers block of your Zed settings.

{
  "context_servers": {
    "paypal-guard": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "fizzl-paypal-guard-mcp"
      ],
      "env": {
        "PAYPAL_CLIENT_ID": "<paypal_client_id>",
        "PAYPAL_CLIENT_SECRET": "<your-paypal_client_secret>",
        "PAYPAL_ENVIRONMENT": "<paypal_environment>",
        "LIMIT_REFUND": "<limit_refund>",
        "LIMIT_REFUND_PER_DAY": "<limit_refund_per_day>",
        "LIMIT_REFUNDS_PER_DAY": "<limit_refunds_per_day>",
        "LIMIT_CURRENCY": "<limit_currency>",
        "GUARD_POLICY": "<guard_policy>",
        "FIZZL_AGENT_KEY": "<your-fizzl_agent_key>",
        "TELEGRAM_BOT_TOKEN": "<your-telegram_bot_token>",
        "TELEGRAM_CHAT_ID": "<telegram_chat_id>",
        "APPROVAL_IN_CHAT": "<approval_in_chat>",
        "APPROVAL_MINUTES": "<approval_minutes>"
      }
    }
  }
}

Claude Code (claude mcp add)

claude mcp add --scope user paypal-guard -- npx -y -- fizzl-paypal-guard-mcp

Gemini CLI (gemini mcp add)

gemini mcp add -s user paypal-guard npx -y -- fizzl-paypal-guard-mcp

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-fizzl13-paypal-guard

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.2.1
category: Other
verdict expires: 2026-11-21
quality: 90 / 100
operator: Fizzl13

Listing

Listed from the official MCP registry. Unclaimed by its maintainer. Maintainer? Email us →

Provenance

Each verdict is bound to a hash of the exact description it judged, so a re-crawl that changes the text produces a new record rather than silently inheriting this one. Verdict history is hash-chained and anchored to Bitcoin via OpenTimestamps (latest confirmed at block 974,764). Verify it yourself.

Links

Repository →Website →