MCP server

Countersign

io.github.countersign-network/countersign

Checked 25 Oct 2026, 21:11 UTC · Still published on its registry; checked against OSV.dev; never run by us

Kill switch + spend guard for AI agents that spend money, across every wallet vendor at once.

Runs on your computer

Website Source

At a glance

Type: MCP server
Publisher: Not verified
Status: Runs on your computer
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code
Last checked: 25 Oct 2026, 21:11 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. It then runs the package on your computer with your permissions. For other apps, copy the setup below.

Claude Code

claude mcp add countersign --env COUNTERSIGN_URL=YOUR_VALUE --env COUNTERSIGN_API_KEY=YOUR_VALUE -- npx -y @countersign/mcp@0.2.2

Claude Desktop

{"mcpServers":{"countersign":{"command":"npx","args":["-y","@countersign/mcp@0.2.2"],"env":{"COUNTERSIGN_URL":"YOUR_VALUE","COUNTERSIGN_API_KEY":"YOUR_VALUE"}}}}

Codex (config.toml)

[mcp_servers.countersign]
command = "npx"
args = ["-y","@countersign/mcp@0.2.2"]
env = { COUNTERSIGN_URL = "YOUR_VALUE", COUNTERSIGN_API_KEY = "YOUR_VALUE" }

Gemini CLI

{"mcpServers":{"countersign":{"command":"npx","args":["-y","@countersign/mcp@0.2.2"],"env":{"COUNTERSIGN_URL":"YOUR_VALUE","COUNTERSIGN_API_KEY":"YOUR_VALUE"}}}}

Cursor

{"mcpServers":{"countersign":{"command":"npx","args":["-y","@countersign/mcp@0.2.2"],"env":{"COUNTERSIGN_URL":"YOUR_VALUE","COUNTERSIGN_API_KEY":"YOUR_VALUE"}}}}

VS Code

{"servers":{"countersign":{"type":"stdio","command":"npx","args":["-y","@countersign/mcp@0.2.2"],"env":{"COUNTERSIGN_URL":"YOUR_VALUE","COUNTERSIGN_API_KEY":"YOUR_VALUE"}}}}

Runs on your computer with your permissions: check the package and its source before installing. Replace YOUR_VALUE with your own COUNTERSIGN_URL, COUNTERSIGN_API_KEY.

Browse

Related MCP servers

Kit Lite
Instant x402 spend-cap pack for agents. get_quote then buy_intel_pack 5 USDC Base. No human.
Crank Protocol
Non-custodial DeFi tools for AI agents on Solana: swaps, perps, lending, staking, equities.
AI Agent Tokenized Stock OS
Non-custodial MCP for Stock Tokens on Robinhood Chain (4663): quotes, plans, Morpho Earn.
Validoria
Continuous website testing by Validoria — monitor security, SEO, performance, and accessibility.
Agent Spend Guard — owner-set purchasing guardrails
Free spend guardrails for AI agents: approve/deny/ask_user, caps, dupes.
Invaro Opentax
Verifiable US tax oracle for AI agents: cited, machine-checkable federal and state tax computation
PingRoom
Send mobile pings and route human questions, approvals, and handoffs from AI agents.
Vibes-Coded Agent Security and Commerce Tools
Agent supply-chain security, scanner consensus, x402 reliability, and commerce MCP tools.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/io.github.countersign-network/countersign.svg)](https://aptlynx.net/servers/io.github.countersign-network/countersign)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents