Blackpool

cash.blackpool/blackpoolblackpool.cashstreamable-httpv0.4.0Scanned 1 hour ago

Private payments for agents: shield, send, swap and bridge via ZK privacy pools on 4 EVM chains.

6 tools: 1 do something that can't be undone, 4 change things and 1 only read.

Reads private data · 0
Reads text others write · 6
Can send data out · 1
1 finding

Anlyon alternative

5 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

6 tools

Can't be undone 1Sends, pays, publishes or merges: once done, it cannot be taken back.Claude Code: ask

blackpool_bridge_quoteIndicative quote for a private bridge.Reads text others writeCan send data out1 finding
Why it is in this group
- The input addresses people (input.to): what it sends cannot be taken back.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
- outboundThe input takes a destination (input.to): what the tool writes goes there.
Findings
- Warn
  The server marks "blackpool_bridge_quote" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.
  What this check looks for
Description, as the server wrote it
Indicative quote for a private bridge. from = origin pool (base_eth, base_usdc, hood_eth, hood_usdg, arb_eth, arb_usdc, bsc_bnb, bsc_usdc, bsc_usdt), to = destination asset (see blackpool_assets).
Annotations the server declares
- title: Bridge quote
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Changes things 4Creates or changes something that can be changed back.Claude Code: ask

blackpool_analyticsShielded notes per chain and pool, recent shields and exact relayer fees (all public on-chain data).Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Shielded notes per chain and pool, recent shields and exact relayer fees (all public on-chain data).
Annotations the server declares
- title: Protocol analytics
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
blackpool_assetsBridge destination assets and valid origins.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Bridge destination assets and valid origins.
Annotations the server declares
- title: Bridge assets
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
blackpool_feesFlat fee, rate, minimum deposit and minimum spend for every pool.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Flat fee, rate, minimum deposit and minimum spend for every pool.
Annotations the server declares
- title: Fees and minimums
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
blackpool_guideAGENTS.md: how an agent makes private payments with the Blackpool CLI or the local MCP server.Reads text others writeNo findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
AGENTS.md: how an agent makes private payments with the Blackpool CLI or the local MCP server. Optional section number or title, e.g. "4" or "Recipes".
Annotations the server declares
- title: Agent guide
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

Only reads 1Looks things up and changes nothing.Show 1 read-only tool

blackpool_statusRelayer API health, configured pools and relayer gas per chain.Reads text others writeNo findings
Why it is in this group
- The name "blackpool_status" says "status": a word for reading.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Relayer API health, configured pools and relayer gas per chain.
Annotations the server declares
- title: Service status
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write6: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; blackpool_analytics
blackpool_assets
blackpool_bridge_quote
blackpool_fees
blackpool_guide
blackpool_status
Can send data out1: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.; blackpool_bridge_quote

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnblackpool_bridge_quote
The server marks "blackpool_bridge_quote" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.
What this check looks for

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 0.4.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http blackpool https://mcp.blackpool.cash/mcp

claude mcp add --transport http blackpool https://mcp.blackpool.cash/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__blackpool__blackpool_status"
    ],
    "ask": [
      "mcp__blackpool__blackpool_fees",
      "mcp__blackpool__blackpool_assets",
      "mcp__blackpool__blackpool_bridge_quote",
      "mcp__blackpool__blackpool_analytics",
      "mcp__blackpool__blackpool_guide"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as blackpool. Review it before you use it.

Capability tags behind 6 rules

mcp__blackpool__blackpool_status untrusted-input
mcp__blackpool__blackpool_fees untrusted-input
mcp__blackpool__blackpool_assets untrusted-input
mcp__blackpool__blackpool_bridge_quote untrusted-input, outbound
mcp__blackpool__blackpool_analytics untrusted-input
mcp__blackpool__blackpool_guide untrusted-input

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/cash.blackpool/blackpool/verify?hash=17ed0931b9d3ae28c845f9f7ad433ad5f4b50ef2ea2694635e7a0aab9e7168e0" | jq -e '.changed == false'

Pinned hash 17ed0931b9d3, from Nov 3, 2026, 11:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/cash.blackpool/blackpool/changes.xml

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Badge

[![anlyon.dev](https://anlyon.dev/badge/cash.blackpool/blackpool.svg)](https://anlyon.dev/servers/cash.blackpool/blackpool)

Source: MCP Registry · repository. Synced Nov 3, 2026, 11:17 UTC.