Q402 MCP

Name: Q402 MCP
Author: quackai-org

作者：quackai-orgバージョン 0.11.34i★ –iパソコンで動く

レジストリ名io.github.quackai-org/q402-mcp

インストール

概要

作者による説明（英語の原文）

Q402 - gasless payments, yield, escrow, bridge & NAV triggers on 12 EVM chains. Sandbox-default.

PopNx MCPの3つの柱

この3つを1つのスコアにまとめることはしません。意見、測定、人気はそれぞれ別のものだからです。

利用者の声iレビューはまだありませんレビューは今後のステップで、アカウント機能と一緒に始まります
私たちの基本チェックi1項目中1項目に合格公開情報からチェック。コードはまだスキャンしていません
利用状況i初期↓ 488/週 · ★ –

できること

このサーバーのやさしい解説はまだ書いていません。以下はレジストリから読み取った事実です。

接続方法: パソコンで動く
トランスポート: stdio
カテゴリ: 暗号資産・ブロックチェーン
入力が必要なもの：Q402_TRIAL_API_KEY, Q402_MULTICHAIN_API_KEY, Q402_PRIVATE_KEY, Q402_AGENTIC_PRIVATE_KEY, Q402_API_KEY

インストール

使っているAIアプリを選んで、設定をコピーしてください。

インストールの前に

基本チェック：1項目中1項目に合格
あなたのパソコンで、あなたのユーザーと同じ権限（ファイル、ネットワーク、アプリ）で動きます。
自分で入力するもの： Q402_TRIAL_API_KEY, Q402_MULTICHAIN_API_KEY, Q402_PRIVATE_KEY, Q402_AGENTIC_PRIVATE_KEY, Q402_ENABLE_REAL_PAYMENTS, Q402_MAX_AMOUNT_PER_CALL, Q402_ALLOWED_RECIPIENTS, Q402_RELAY_BASE_URL, Q402_AGENT_WALLET_ADDRESS, Q402_API_KEY, Q402_WALLET_ID, Q402_BUILDER_CODE

「秘密」と表示された値は、あなたのアカウントの鍵です。絶対に人に教えたり、チャットに貼り付けたりしないでください。

必要なもの

npmNode.jsのインストール（npxコマンドに必要）

どのアプリを使っていますか？

ClaudeClaude CodeCursorVS CodeChatGPT

上でアプリを選んでください。選んだアプリを覚えておくので、次からはボタンに「…にインストール」と表示されます。

Claude Desktop → Settings → Developer → Edit Config を開き、claude_desktop_config.json にこれを貼り付けます

{
  "mcpServers": {
    "q402": {
      "command": "npx",
      "args": [
        "-y",
        "@quackai/q402-mcp"
      ],
      "env": {
        "Q402_TRIAL_API_KEY": "your-value",
        "Q402_MULTICHAIN_API_KEY": "your-value",
        "Q402_PRIVATE_KEY": "your-value",
        "Q402_AGENTIC_PRIVATE_KEY": "your-value",
        "Q402_ENABLE_REAL_PAYMENTS": "your-value",
        "Q402_MAX_AMOUNT_PER_CALL": "your-value",
        "Q402_ALLOWED_RECIPIENTS": "your-value",
        "Q402_RELAY_BASE_URL": "your-value",
        "Q402_AGENT_WALLET_ADDRESS": "your-value",
        "Q402_API_KEY": "your-value",
        "Q402_WALLET_ID": "your-value",
        "Q402_BUILDER_CODE": "your-value"
      }
    }
  }
}

ターミナルでこれを実行します

claude mcp add q402 --env Q402_TRIAL_API_KEY=your-value --env Q402_MULTICHAIN_API_KEY=your-value --env Q402_PRIVATE_KEY=your-value --env Q402_AGENTIC_PRIVATE_KEY=your-value --env Q402_ENABLE_REAL_PAYMENTS=your-value --env Q402_MAX_AMOUNT_PER_CALL=your-value --env Q402_ALLOWED_RECIPIENTS=your-value --env Q402_RELAY_BASE_URL=your-value --env Q402_AGENT_WALLET_ADDRESS=your-value --env Q402_API_KEY=your-value --env Q402_WALLET_ID=your-value --env Q402_BUILDER_CODE=your-value -- npx -y @quackai/q402-mcp

動かす前に、空欄の値を入力してください。

Cursorで開く

または、設定を自分でコピーする

プロジェクトの .cursor/mcp.json、または ~/.cursor/mcp.json に貼り付けます

{
  "mcpServers": {
    "q402": {
      "command": "npx",
      "args": [
        "-y",
        "@quackai/q402-mcp"
      ],
      "env": {
        "Q402_TRIAL_API_KEY": "your-value",
        "Q402_MULTICHAIN_API_KEY": "your-value",
        "Q402_PRIVATE_KEY": "your-value",
        "Q402_AGENTIC_PRIVATE_KEY": "your-value",
        "Q402_ENABLE_REAL_PAYMENTS": "your-value",
        "Q402_MAX_AMOUNT_PER_CALL": "your-value",
        "Q402_ALLOWED_RECIPIENTS": "your-value",
        "Q402_RELAY_BASE_URL": "your-value",
        "Q402_AGENT_WALLET_ADDRESS": "your-value",
        "Q402_API_KEY": "your-value",
        "Q402_WALLET_ID": "your-value",
        "Q402_BUILDER_CODE": "your-value"
      }
    }
  }
}

ブラウザがアプリを開いてよいか確認し、そのあとアプリが設定を表示して確認を求めます。キーの値は空欄のままなので、自分で入力してください。

VS Codeで開く

または、設定を自分でコピーする

プロジェクトの .vscode/mcp.json に貼り付けます

{
  "servers": {
    "q402": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@quackai/q402-mcp"
      ],
      "env": {
        "Q402_TRIAL_API_KEY": "your-value",
        "Q402_MULTICHAIN_API_KEY": "your-value",
        "Q402_PRIVATE_KEY": "your-value",
        "Q402_AGENTIC_PRIVATE_KEY": "your-value",
        "Q402_ENABLE_REAL_PAYMENTS": "your-value",
        "Q402_MAX_AMOUNT_PER_CALL": "your-value",
        "Q402_ALLOWED_RECIPIENTS": "your-value",
        "Q402_RELAY_BASE_URL": "your-value",
        "Q402_AGENT_WALLET_ADDRESS": "your-value",
        "Q402_API_KEY": "your-value",
        "Q402_WALLET_ID": "your-value",
        "Q402_BUILDER_CODE": "your-value"
      }
    }
  }
}

これはパソコンで動くサーバーですが、ChatGPTがつなげるのはインターネット上のサーバーだけです。ほかのアプリを選んでください。

選んだアプリは、この端末のCookieに保存されます。アカウントは不要です。

自分で入力する値

Q402_TRIAL_API_KEY 秘密 env
Recommended path: skip this UI and run `q402_doctor` after install - it stores secrets in ~/.q402/mcp.env, which the server auto-loads. Fill this field directly ONLY if your MCP client manages secret…
Q402_MULTICHAIN_API_KEY 秘密 env
Recommended path: skip this UI and run `q402_doctor` after install - it stores secrets in ~/.q402/mcp.env, which the server auto-loads. Fill this field directly ONLY if your MCP client manages secret…
Q402_PRIVATE_KEY 秘密 env
Mode A - real EOA signing. Hex-encoded EVM private key (0x + 64 hex chars) of YOUR MetaMask wallet, used to sign payment authorizations LOCALLY on your machine. After your first payment that wallet s…
Q402_AGENTIC_PRIVATE_KEY 秘密 env
Mode B - local Agent Wallet signing. Hex-encoded EVM private key (0x + 64 hex chars) exported from your Agent Wallet at https://q402.quackai.ai/dashboard -> Agent tab -> Export. Signs LOCALLY just li…
Q402_ENABLE_REAL_PAYMENTS env
Live-mode switch. 0 = sandbox (test mode, no funds move - every q402_pay returns a fake hash). 1 = real on-chain payments. Default 1 since v0.5.11: safe because mode only flips to live when a live AP…
Q402_MAX_AMOUNT_PER_CALL env
Per-call USD-equivalent cap for USDC/USDT/RLUSD. Any such q402_pay request with amount above this is rejected before signing. Q (QuackAI) is exempt by design (your own token; recipient allowlist + co…
Q402_ALLOWED_RECIPIENTS env
Optional comma-separated lowercase EVM addresses. When set, q402_pay rejects any recipient not on this allowlist.
Q402_RELAY_BASE_URL env
Override for the Q402 relay endpoint. Defaults to https://q402.quackai.ai/api. Set explicitly when running against a self-hosted Q402 deployment or a non-canonical environment.
Q402_AGENT_WALLET_ADDRESS env
Server-managed Agent Wallet picker (walletMode='agentic-server' only). Lowercased agent wallet address (the hex 0x... shown on the Agent tab of your dashboard) selecting which of your Agent Wallets t…
Q402_API_KEY 秘密 env
DEPRECATED legacy single-key env from pre-v0.5.0 installs. The server still reads it as a silent fallback so existing setups keep working, but new users should pick a scoped variant instead. Q402_TRI…
Q402_WALLET_ID env
DEPRECATED soft-migration alias for Q402_AGENT_WALLET_ADDRESS (one release of overlap from v0.6.0). The server still accepts it but logs a deprecation notice. New installs should set Q402_AGENT_WALLE…
Q402_BUILDER_CODE env
Optional Base Builder Code for onchain attribution (ERC-8021 / Base Builder Codes). When set, every q402_x402_fetch payment includes your code as the client/intermediary in the x402 payment extension…

この設定は、作者のレジストリ登録情報から作成しています。READMEと違う場合は、READMEに従ってください。

できること

パソコンで動くサーバーです。インストールすると、ツール一覧がAIアプリに表示されます。

基本チェックi

誰でも見られる情報をチェックしており、コードは読んでいません。当てはまらない項目は数に入れていません。 · 2026年11月9日にチェック

✓ 合格
作者とリポジトリが一致
レジストリ名は、リポジトリを所有するGitHubアカウント quackai-org で確認済みです
… 未チェック
今もメンテナンスされている
このリポジトリはまだGitHubから読み取っていません
… 未チェック
ライセンスがある
このリポジトリはまだGitHubから読み取っていません
– 対象外
エンドポイントが応答する
これはパソコンで動くため、インターネット上のエンドポイントはありません
– 対象外
OAuthでサインイン
パソコンで動き、代わりにローカルの設定を使います
… 未チェック
ツールの説明に隠れた指示がない
パソコンで動くサーバーです。ツール一覧を読み取れるのは、インターネット上のエンドポイントがある場合だけです

暗号資産・ブロックチェーンのほかのサーバーとの比較i

このカテゴリのほかの1623件のうち0%よりスターが多い
このカテゴリのほかの1623件のうち91%より最近レジストリに公開
基本チェックの結果が、このカテゴリのほかの1623件のうち100%と同じかそれ以上

レジストリでこのカテゴリにある有効なすべてのサーバーと比較しています。スターは、公開者がリポジトリの所有者である場合だけ数えます。

よくある質問

Q402 MCPは安全ですか？

当てはまる基本チェック1項目のうち1項目に合格しました。コードは読んでいません。キーやトークンを追加する前に、サーバーがどんなアクセスを求めているかを確認し、必要な権限だけを持つキーを使ってください。

どんなキーやコードが必要ですか？

入力が必要なもの：Q402_TRIAL_API_KEY, Q402_MULTICHAIN_API_KEY, Q402_PRIVATE_KEY, Q402_AGENTIC_PRIVATE_KEY, Q402_API_KEY

パソコンで動きますか、それともクラウドですか？

あなたのパソコンで動きます。必要なときにAIアプリが起動し、データは作者のサーバーを通りません（サーバー自体がオンラインサービスを呼び出す場合を除きます）。

今もメンテナンスされていますか？

GitHubリポジトリの最終更新は–、最新バージョン（0.11.34）がレジストリに届いたのは6 日前です。

どのアプリで使えますか？

Claude Desktop、Claude Code、Cursor、VS CodeなどのMCP対応アプリで使えます。パソコンにNode.jsも必要です。

代わりに使えるものは？

同じカテゴリには：Highwire, Verdict: DeFi risk ratings, RealtimeAPI.ai

代わりの候補

同じカテゴリで、ほかの作者が作ったサーバー。スターの多い順。

カードの見方：↓ 週あたりのダウンロードi★ GitHubスターi3つの柱：レビュー · チェック · 利用状況i更新＝最新バージョンをレジストリに公開した日i

Highwire

Trade, launch and research higher.fun coins on Solana, from any AI agent. Unsigned or policy-signed.

作者：HigherMaestro成長中↓ 1729/週今日更新

パソコンでもクラウドでも✓ highwire.fun

インストール

Verdict: DeFi risk ratings

Verdict, the security marketplace for DeFi: keyless ratings, methodology and a hack incident feed.

作者：Verdict-Capitalとても新しい↓ 71/週今日更新

パソコンで動く

インストール

RealtimeAPI.ai

Live data for AI agents: crypto, Hyperliquid, stocks, news, macro, predictions. Free key or x402.

作者：realtimeapi.ai初期今日更新

クラウドで動く✓ realtimeapi.ai

インストール

作者のREADME

READMEを開く

作者のリポジトリから書かれたとおりにコピーしたものです。PopNx MCPは内容を確認・推奨していません。HTML、画像、スクリプトは取り除いています。リンクはこのサイトの外へ移動します。

@quackai/q402-mcp

MCP server for Q402 - gasless USDC, USDT, RLUSD, and USDG payments across 12 EVM chains (USDG on Robinhood Chain), callable from Claude (Desktop / Code), OpenAI Codex CLI, and any other Model Context Protocol client.

Free trial available. 500 gasless transactions on BNB Chain + Base (USDC + USDT), no card. One wallet signature: https://q402.quackai.ai.

Limited-time bonus: Mantle (USDC + USDT) is also covered by trial keys during 2026-08-21~08-28 UTC+9.

Trial-scope policy: API keys minted under the free-trial program (plan: "trial") settle on BNB Chain (USDC/USDT gasless) and Base (USDC/USDT gasless) as permanent chains. Avalanche trial has ended — use a Multichain key for avax. Mantle (USDC/USDT gasless) is covered during the limited-time window 2026-08-21~08-28 UTC+9 — server-side time enforcement, returns TRIAL_BNB_ONLY outside the window. Paid API keys see the full 12-chain matrix at all times.

Quote → route → (optional) settle stablecoin payments across 12 EVM chains, from any MCP client. Recipient gets the full amount; sender pays $0 gas via Q402's EIP-7702 relayer.

Quick start

Register the server with your client (one-line per client).
Say "Set up Q402" to your agent. It runs q402_doctor → creates ~/.q402/mcp.env → walks you through pasting keys.

1. Register the server

Client	Command / config
Claude Code (CLI)	`claude mcp add q402 -- npx -y @quackai/q402-mcp`
Claude Desktop (app)	Edit `claude_desktop_config.json` (Settings → Developer → Edit Config): `{ "mcpServers": { "q402": { "command": "npx", "args": ["-y", "@quackai/q402-mcp"] } } }`. Restart the app.
OpenAI Codex CLI	`codex mcp add q402 -- npx -y @quackai/q402-mcp` (Windows fallback: see below)
Cursor	Add to `~/.cursor/mcp.json`: `{ "mcpServers": { "q402": { "command": "npx", "args": ["-y", "@quackai/q402-mcp"] } } }`
Cline	Cline → Settings → MCP Servers → Edit JSON. Same shape as Cursor.
GitHub Copilot (VS Code)	Add to `.vscode/mcp.json` - root key is `servers`, not `mcpServers`: `{ "servers": { "q402": { "command": "npx", "args": ["-y", "@quackai/q402-mcp"] } } }`. Reload VS Code, then enable q402 in the Copilot Chat tools picker.
Hermes Agent (Nous Research)	YAML, not JSON. Add under `mcp_servers` in `~/.hermes/config.yaml` (see below), then run `/reload-mcp`.
Any other stdio MCP client	Point it at `npx -y @quackai/q402-mcp`. No client-specific code.

Hermes Agent - YAML config ( ~/.hermes/config.yaml )

Hermes reads MCP servers from ~/.hermes/config.yaml under mcp_servers (YAML, not JSON):

mcp_servers:

q402: command: "npx" args: ["-y", "@quackai/q402-mcp"] enabled: true

After editing, run /reload-mcp in Hermes to load the tools. Or use the CLI: hermes mcp add q402 --command npx --args -y @quackai/q402-mcp.

Claude Code (the CLI, claude binary) and Claude Desktop (the macOS / Windows app) are different products. The claude mcp add command only exists in the CLI; the Desktop app needs the JSON config above.

Secrets are NOT in this config. The server reads them from ~/.q402/mcp.env (same pattern as AWS / Stripe / gh CLIs).

Windows: codex mcp add returns "Access is denied"

Some Windows setups block codex.exe from writing its own config. Add the stanza to ~/.codex/config.toml by hand:

[mcp_servers.q402]

command = "npx" args = ["-y", "@quackai/q402-mcp"]

Then restart Codex. Same effect as codex mcp add q402 -- npx -y @quackai/q402-mcp.

2. First-time setup

Restart your client, ask: > *"Set up Q402"*

The agent runs q402_doctor. On first install:

Creates ~/.q402/mcp.env (placeholders)
Opens it in your editor
Walks you through pasting an API key + a signing path into the file, not into chat
Restart + re-run q402_doctor to verify

Keys never paste into chat. Local modes sign on your machine; the key never leaves the device. Mode C (server-managed) needs no PK on the client.

Pick a signing mode

Mode	Env	Signer	Notes
A	`Q402_PRIVATE_KEY`	MetaMask EOA, local	Simplest. Shows "Smart account" after first use (reversible via `q402_clear_delegation`). After EIP-7702 delegation to an older implementation, `q402_x402_fetch` is unavailable until `q402_clear_delegation` is called (gasless, reversible; next `q402_pay` re-delegates). If delegated to the current ERC-1271-capable implementation, `q402_x402_fetch` works normally.
B	`Q402_AGENTIC_PRIVATE_KEY`	Agent Wallet, local	Export PK from the dashboard → Wallets → Danger Zone → Export private key. MetaMask untouched.
C	(just an API key)	Agent Wallet, server-managed	No PK on the client. One-shot pays accept Trial or Multichain keys; recurring needs Multichain on every chain (BNB included).

When more than one mode is set, q402_pay asks the user which to use. Picker: walletMode = "agentic-server" \| "agentic-local" \| "eoa".

Manual setup (no AI)

Create ~/.q402/mcp.env yourself with the template below. Live mode only flips when an API key + a signing path are populated, so saving the template as-is stays in sandbox. Q402_ENABLE_REAL_PAYMENTS=0 forces sandbox even with real keys.

# ~/.q402/mcp.env

── API key (pick one or both for auto-routing) ──

Q402_TRIAL_API_KEY= # Free Trial, BNB (permanent) + Base (permanent) + Mantle limited-time (from /event) Q402_MULTICHAIN_API_KEY= # Paid Multichain, all 12 chains (from /payment)

── Signing path - pick ONE of Mode A / B / C ──

Mode A: your MetaMask EOA's hex private key.

Hardware wallets (Ledger / Trezor) are NOT supported here - Q402

needs a raw hex key it can sign EIP-7702 type-4 authorizations with.

Q402_PRIVATE_KEY=

Mode B: exported Agent Wallet pk from the dashboard. Keeps your

MetaMask untouched. Get it at:

https://q402.quackai.ai/dashboard → Agent tab → Export

Q402_AGENTIC_PRIVATE_KEY=

Mode C: no PK needed. A Trial key also enables Mode C one-shot payments;

leave both PK lines blank. Q402 signs with the server-managed Agent Wallet.

Multichain key required for recurring, Mode C batch, and bridge/OFT.

Optional: pin one of your Agent Wallets when you have multiple (max 10).

Q402_AGENT_WALLET_ADDRESS=0x...

Live mode switch:

0 = sandbox (test mode, no funds move)

1 = real on-chain payments

Default 1 - safe because mode only flips to live when an API key AND

at least one valid signing path (A/B/C) are populated above.

Q402_ENABLE_REAL_PAYMENTS=1

Default Q402 deployment. Only change for self-hosted.

Q402_RELAY_BASE_URL=https://q402.quackai.ai/api

Safety guards (max-amount ships uncommented at $200; lower for tighter caps):

Q402_MAX_AMOUNT_PER_CALL=200

Q402_ALLOWED_RECIPIENTS=0xabc...,0xdef...

Pre-check (automatic trust-check before outgoing payments in live mode).

Triggers when paying a first-time counterparty OR amount >= $1.

Fee: $0.02 per check; verdict cached 7 days (no repeat charge within TTL).

Set to 1 to disable pre-check entirely (even first-time / large-amount pays).

Q402_DISABLE_PRECHECK=0

Then chmod 600 ~/.q402/mcp.env (Unix) and restart your client. That's the full configuration. Heads up on the EIP-7702 side effect: after your first live payment on a chain, your wallet will show 'Smart account' in MetaMask / OKX - that's the delegation Q402 uses for gasless settlement, reversible anytime via q402_clear_delegation. Important for x402 users: if EIP-7702 delegation is active on an older implementation, q402_x402_fetch cannot sign x402 payments until you call q402_clear_delegation (gasless on Base, reversible — the next q402_pay re-delegates automatically). Wallets delegated to the current ERC-1271-capable implementation work normally.

Advanced - explicit env injection

If you'd rather skip the file and inject env vars yourself (e.g. via Codex env_vars allow-list, a secrets manager, or shell exports), the server falls through to process.env - and process.env wins over file values on conflicts. So existing shell-export setups keep working unchanged.

Codex env_vars allow-list example

[mcp_servers.q402]

command = "npx" args = ["-y", "@quackai/q402-mcp"] startup_timeout_sec = 20.0 env_vars = [ "Q402_TRIAL_API_KEY", "Q402_MULTICHAIN_API_KEY", "Q402_PRIVATE_KEY", "Q402_AGENTIC_PRIVATE_KEY", "Q402_AGENT_WALLET_ADDRESS", "Q402_ENABLE_REAL_PAYMENTS", "Q402_RELAY_BASE_URL", ]

Then export the values in ~/.zshrc / ~/.bashrc. See the Codex config reference for the full schema.

Try it without any setup

q402_quote works with zero configuration - no API key, no private key, no env file. Ask:

*"Compare gas costs to send 50 USDC to vitalik.eth across all 12 Q402 chains."*

Q402_RELAY_BASE_URL overrides the relay endpoint. Set it explicitly when running against a self-hosted Q402 deployment or a non-canonical environment.

Tools exposed

52 tools, grouped by capability. Read-only by default; live mode needs a live API key, a signing path, and Q402_ENABLE_REAL_PAYMENTS=1. Rows marked live mode move funds and need an explicit in-chat confirmation.

Tool	Auth	Purpose
Payments & wallet
`q402_doctor`	none	First-install onboarding + ongoing health check (per-scope quota, EIP-7702 state, relay reachability, slot-mismatch warnings).
`q402_quote`	none	Compare gas + supported tokens across chains.
`q402_balance`	api key	Verify key + remaining quota.
`q402_pay`	live mode	Single-recipient gasless transfer. Sandbox by default. In live mode, automatically runs a trust-check ($0.02) on the recipient before each payment when it is a first-time counterparty or the amount ≥ $1; verdict cached 7 days (no double-charge within TTL). Degrades to free basic verdict only when wallet balance exactly covers the transfer but not the $0.02 fee, or when only a non-USDC rail token is available. Pre-check never blocks the main transaction. Disable with `Q402_DISABLE_PRECHECK=1`.
`q402_batch_pay`	live mode	Up to 20 recipients per call. Trial: 5 - applies when paying with your own key (Mode A/B); server-managed Agent Wallet (Mode C) batch is paid Multichain-only. Same auto-routing as `q402_pay`. 6+ BNB batches with Trial set return `status="ambiguous"` so the agent asks how to split. xlayer + stable not batchable - use `q402_pay` in a loop.
`q402_receipt`	none	Fetch + locally verify a Trust Receipt (`rct_…` id, ECDSA against the relayer EOA).
`q402_wallet_status`	private key	Per-chain EIP-7702 state for the EOA derived from `Q402_PRIVATE_KEY`.
`q402_clear_delegation`	private key / api key	Clear EIP-7702 delegation (Mode A/B local key OR Mode C api key, server-signed). Sponsored on every chain except Ethereum (billed to your Gas Tank). Two-phase consent (`consentToken`).
`q402_agentic_info`	api key	Agent Wallet info (addresses, per-wallet caps, daily-spend used, ERC-8004 id). Drives Mode C.
Treasury memory
`q402_memory_summary`	api key	Treasury overview over a window: USD-stablecoin spend by chain/source, top vendors, schedules, open requests/escrow, failures. Read-only.
`q402_vendor_history`	api key	Total paid to one vendor (or a vendor leaderboard) with recurring cadence. Read-only.

| q402_agent_spend_report | api ke

冒頭だけを表示しています。続きはリポジトリで読めます

Q402 MCP

概要

PopNx MCPの3つの柱

できること

インストール

インストールの前に

自分で入力する値

できること

基本チェックi

作者とリポジトリが一致

今もメンテナンスされている

ライセンスがある

エンドポイントが応答する

OAuthでサインイン

ツールの説明に隠れた指示がない

暗号資産・ブロックチェーンのほかのサーバーとの比較i

よくある質問

代わりの候補

Highwire

Verdict: DeFi risk ratings

RealtimeAPI.ai

作者のREADME

@quackai/q402-mcp

Quick start

1. Register the server

2. First-time setup

Pick a signing mode

Manual setup (no AI)

── API key (pick one or both for auto-routing) ──

── Signing path - pick ONE of Mode A / B / C ──

Mode A: your MetaMask EOA's hex private key.

Hardware wallets (Ledger / Trezor) are NOT supported here - Q402

needs a raw hex key it can sign EIP-7702 type-4 authorizations with.

Mode B: exported Agent Wallet pk from the dashboard. Keeps your

MetaMask untouched. Get it at:

https://q402.quackai.ai/dashboard → Agent tab → Export

Mode C: no PK needed. A Trial key also enables Mode C one-shot payments;

leave both PK lines blank. Q402 signs with the server-managed Agent Wallet.

Multichain key required for recurring, Mode C batch, and bridge/OFT.

Optional: pin one of your Agent Wallets when you have multiple (max 10).

Q402_AGENT_WALLET_ADDRESS=0x...

Live mode switch:

0 = sandbox (test mode, no funds move)

1 = real on-chain payments

Default 1 - safe because mode only flips to live when an API key AND

at least one valid signing path (A/B/C) are populated above.

Default Q402 deployment. Only change for self-hosted.

Safety guards (max-amount ships uncommented at $200; lower for tighter caps):

Q402_ALLOWED_RECIPIENTS=0xabc...,0xdef...

Pre-check (automatic trust-check before outgoing payments in live mode).

Triggers when paying a first-time counterparty OR amount >= $1.

Fee: $0.02 per check; verdict cached 7 days (no repeat charge within TTL).

Set to 1 to disable pre-check entirely (even first-time / large-amount pays).

Q402_DISABLE_PRECHECK=0

Advanced - explicit env injection

Try it without any setup

Tools exposed