Q402 MCP

Name: Q402 MCP
Author: quackai-org

de quackai-orgversión 0.11.34i★ –iSe ejecuta en tu computadora

Nombre en el registroio.github.quackai-org/q402-mcp

Instalar

Resumen

Descripción del creador (original en inglés)

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

Los tres pilares de PopNx MCP

Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.

Opinión de usuariosiAún no hay reseñasLas reseñas se abrirán junto con las cuentas en una etapa posterior
Nuestras revisiones básicasi1 de 1 superadasRevisado con información pública; el código aún no se ha escaneado
UsoiInicial↓ 488/sem · ★ –

Qué puedes hacer con él

Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.

Conexión: Se ejecuta en tu computadora
Transporte: stdio
Categoría: Cripto y blockchain
Debes completar: Q402_TRIAL_API_KEY, Q402_MULTICHAIN_API_KEY, Q402_PRIVATE_KEY, Q402_AGENTIC_PRIVATE_KEY, Q402_API_KEY

Instalación

Elige la app de IA que usas y copia la configuración.

Antes de instalar

Revisiones básicas: 1 de 1 superadas
Se ejecuta en tu computadora con los permisos de tu usuario (archivos, red, apps).
Debes completar tú: 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

Los valores marcados como secretos son llaves de tu cuenta. Nunca los compartas ni los pegues en un chat.

Necesitas

npmNode.js instalado (para el comando npx)

¿Qué app usas?

ClaudeClaude CodeCursorVS CodeChatGPT

Elige tu app arriba. La recordamos, así que la próxima vez el botón dirá “Instalar en …”.

Abre Claude Desktop → Settings → Developer → Edit Config y pega esto en claude_desktop_config.json

{
  "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"
      }
    }
  }
}

Ejecuta esto en tu terminal

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

Completa los valores vacíos antes de ejecutarlo.

Abrir en Cursor

O copia la configuración tú

Pégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json

{
  "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"
      }
    }
  }
}

Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.

Abrir en VS Code

O copia la configuración tú

Pégalo en .vscode/mcp.json de tu proyecto

{
  "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"
      }
    }
  }
}

Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.

Este se ejecuta en tu computadora, y ChatGPT solo puede conectarse a servidores en internet. Elige otra app.

Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.

Valores que debes completar

Q402_TRIAL_API_KEY secreto 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 secreto 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 secreto 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 secreto 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 secreto 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…

Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.

Qué puede hacer

Se ejecuta en tu computadora; la lista de herramientas aparece en tu app de IA después de instalarlo.

Revisiones básicasi

Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 9 nov 2026

✓ Superada
El creador coincide con el repo
El nombre en el registro se verificó con la cuenta de GitHub quackai-org, dueña del repo
… Aún sin revisar
Sigue en mantenimiento
Todavía no hemos leído este repo en GitHub
… Aún sin revisar
Tiene licencia
Todavía no hemos leído este repo en GitHub
– No aplica
El endpoint responde
Este se ejecuta en tu computadora; no hay endpoint en internet
– No aplica
Inicio de sesión con OAuth
Se ejecuta en tu computadora y usa ajustes locales en su lugar
… Aún sin revisar
Sin instrucciones ocultas en las descripciones de herramientas
Se ejecuta en tu computadora; solo podemos leer listas de herramientas de endpoints en internet

Comparado con otros en Cripto y blockchaini

Más estrellas que el 0% de los otros 1623 servidores de esta categoría
Publicado en el registro más recientemente que el 91% de los otros 1623 servidores de esta categoría
Revisiones básicas iguales o mejores que el 100% de los otros 1623 servidores de esta categoría

Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.

Preguntas frecuentes

¿Es seguro Q402 MCP?

Superó 1 de 1 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.

¿Qué claves o códigos necesita?

Debes completar: Q402_TRIAL_API_KEY, Q402_MULTICHAIN_API_KEY, Q402_PRIVATE_KEY, Q402_AGENTIC_PRIVATE_KEY, Q402_API_KEY

¿Se ejecuta en mi computadora o en la nube?

Se ejecuta en tu computadora. Tu app de IA lo inicia cuando hace falta, y los datos no pasan por los servidores del creador (a menos que el propio servidor llame a un servicio en línea).

¿Sigue en mantenimiento?

El repo de GitHub cambió por última vez –, y la última versión (0.11.34) llegó al registro hace 6 días.

¿Qué apps pueden usarlo?

Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. También necesitas Node.js en tu computadora.

¿Qué puedo usar en su lugar?

En la misma categoría: RealtimeAPI.ai, Verdict: DeFi risk ratings, Highwire

Alternativas

Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.

Cómo leer una tarjeta:↓ Descargas por semanai★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi

RealtimeAPI.ai

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

de realtimeapi.aiInicialActualizado hoy

Se ejecuta en la nube✓ realtimeapi.ai

Instalar

Verdict: DeFi risk ratings

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

de Verdict-CapitalMuy nuevo↓ 71/semActualizado hoy

Se ejecuta en tu computadora

Instalar

Highwire

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

de HigherMaestroEn crecimiento↓ 1,7 mil/semActualizado hoy

Computadora o nube✓ highwire.fun

Instalar

README del creador

Abrir el README

Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.

@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

Solo se muestra el principio; lee el resto en el repo

Q402 MCP

Resumen

Los tres pilares de PopNx MCP

Qué puedes hacer con él

Instalación

Antes de instalar

Valores que debes completar

Qué puede hacer

Revisiones básicasi

El creador coincide con el repo

Sigue en mantenimiento

Tiene licencia

El endpoint responde

Inicio de sesión con OAuth

Sin instrucciones ocultas en las descripciones de herramientas

Comparado con otros en Cripto y blockchaini

Preguntas frecuentes

Alternativas

RealtimeAPI.ai

Verdict: DeFi risk ratings

Highwire

README del creador

@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