presign-guard wallet

io.github.Fizzl13/presign-guard-walletv0.3.0Other

A wallet with spending limits for agents: pay x402 APIs, send USDC, phone approval over the limit.

The current version, v0.3.0, was published to the official MCP registry on 2026-10-02. It is distributed as presign-guard-wallet-mcp on npm, filed under Other by this index, and declares 11 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 presign-guard wallet 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

NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-10-02).

Contracts can change after screening, with no version bump. The gate pins presign-guard wallet’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 →

Environment variables

AGENT_KEY

requiredsecret

Private key of the agent's own wallet (a separate wallet holding only what the agent may spend)

LIMIT_USDC_PER_TX

Most USDC per payment or transfer without asking you, e.g. 5

LIMIT_USDC_PER_DAY

Daily USDC budget, e.g. 20

TELEGRAM_BOT_TOKEN

secret

Telegram bot that asks you to approve anything over a limit

TELEGRAM_CHAT_ID

Your Telegram chat id (approvals go only there)

WALLET_SERVER_URL

Instead of LIMIT_* and TELEGRAM_*: a wallet server keeping one budget for all your agents

WALLET_SERVER_KEY

secret

The agent key (awk_…) from the wallet server's dashboard

CHAIN

base (default), ethereum, optimism, arbitrum, polygon or bsc

MAX_PAYMENT_USD

Most a single x402 API call may cost, in dollars (default 1)

PRESIGN_CREDIT_KEY

secret

Optional presign-guard credit key (pgc_…) to pay the $0.01 checks from prepaid credits

RPC_URL

Optional RPC URL for the chain

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

Alternatives in Other

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ai.clipstudio/mcp

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ai.drillr/drillr

Financial data and research MCP for US/CN/JP equities: filings, statements, ownership, signals.

FlagQuantum MCP Server

io.github.FlagQuantum/flagquantum-mcp-server

Build, compile, run and export FlagQuantum circuits locally. No credentials or outbound network.

Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "presign-guard-wallet": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "presign-guard-wallet-mcp"
      ],
      "env": {
        "AGENT_KEY": "<your-agent_key>",
        "LIMIT_USDC_PER_TX": "<limit_usdc_per_tx>",
        "LIMIT_USDC_PER_DAY": "<limit_usdc_per_day>",
        "TELEGRAM_BOT_TOKEN": "<your-telegram_bot_token>",
        "TELEGRAM_CHAT_ID": "<telegram_chat_id>",
        "WALLET_SERVER_URL": "<wallet_server_url>",
        "WALLET_SERVER_KEY": "<your-wallet_server_key>",
        "CHAIN": "<chain>",
        "MAX_PAYMENT_USD": "<max_payment_usd>",
        "PRESIGN_CREDIT_KEY": "<your-presign_credit_key>",
        "RPC_URL": "<rpc_url>"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "presign-guard-wallet": {
      "command": "npx",
      "args": [
        "-y",
        "--",
        "presign-guard-wallet-mcp"
      ],
      "env": {
        "AGENT_KEY": "<your-agent_key>",
        "LIMIT_USDC_PER_TX": "<limit_usdc_per_tx>",
        "LIMIT_USDC_PER_DAY": "<limit_usdc_per_day>",
        "TELEGRAM_BOT_TOKEN": "<your-telegram_bot_token>",
        "TELEGRAM_CHAT_ID": "<telegram_chat_id>",
        "WALLET_SERVER_URL": "<wallet_server_url>",
        "WALLET_SERVER_KEY": "<your-wallet_server_key>",
        "CHAIN": "<chain>",
        "MAX_PAYMENT_USD": "<max_payment_usd>",
        "PRESIGN_CREDIT_KEY": "<your-presign_credit_key>",
        "RPC_URL": "<rpc_url>"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y -- presign-guard-wallet-mcp

Claude Code (claude mcp add)

claude mcp add --scope user presign-guard-wallet -- npx -y -- presign-guard-wallet-mcp

Gemini CLI (gemini mcp add)

gemini mcp add -s user presign-guard-wallet npx -y -- presign-guard-wallet-mcp

Verdict API

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

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

Details

version: v0.3.0
category: Other
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 969,535). Verify it yourself.

Links

Repository →Website →