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Neuronto Payments: x402 facilitator and API gateway

Registre officiel Finance et paiements

Put any API behind x402 in one call, settle USDC on Base, buy credits, find paid resources

Code source Site web Documentation

Installation

Ajoutez ceci à la configuration MCP de votre client (Claude Desktop : claude_desktop_config.json ; Cursor : .cursor/mcp.json ; VS Code et les autres utilisent la même forme « mcpServers »).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http neuronto-payments-x402-facilitator-and-a 'https://pay.neuronto.com/mcp'
Configuration JSON (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "neuronto-payments-x402-facilitator-and-a": {
            "type": "http",
            "url": "https://pay.neuronto.com/mcp"
        }
    }
}

Documentation

Tirée du README du projet sur GitHub, actualisée chaque semaine. Les liens ouvrent GitHub.

Sommaire
  1. x402 starters
  2. Pick one
  3. Run one in a minute
  4. The facilitator
  5. Testing without spending anything
  6. What you need
  7. Licence

x402 starters

The shortest working way to charge for an HTTP route, and to pay for one, using the official x402 SDKs. Every file here runs as it is; the only thing you must change is the wallet that gets paid.

x402 revives HTTP 402 Payment Required. Your server answers an unpaid request with 402 and machine-readable terms, the client signs a stablecoin payment, and a facilitator verifies the signature and settles it on-chain. Your server never holds a key and never talks to a chain.

Pick one

FolderStackWhat it is
expressNode, ExpressOne paid GET /premium route
honoNode, HonoThe same route on Hono
nextNext.js App RouterA paid API route
fastapiPython, FastAPIThe same route in Python
clientNode and PythonPaying for a 402 route from a script or an agent

Run one in a minute

cd express
npm install
export MERCHANT=0xYourWalletAddress      # where the money goes, on Base
npm start
curl -i localhost:3000/premium           # 402 with terms

Then pay it with a client from client, or point any x402 client at it.

The facilitator

These starters use https://pay.neuronto.com as the facilitator: the service that verifies the payer's signature and broadcasts the settlement. It is one line in every file, and any x402 facilitator can take its place:

new HTTPFacilitatorClient({ url: "https://pay.neuronto.com" })

Base mainnet (eip155:8453) is live there. GET https://pay.neuronto.com/supported lists every network, scheme and version it settles right now; a network that cannot settle disappears from that list before it starts refusing, so a server that reads /supported never advertises a price it cannot take.

Testing without spending anything

https://pay.neuronto.com/echo is a live merchant that charges $0.001 and sends it straight back in the same request, so a client can be run end to end for the cost of nothing:

curl -i https://pay.neuronto.com/echo        # a real 402, with real terms

Point any of the clients in client at that URL. The refund is automatic; the gas is not yours.

What you need

  • A wallet address to be paid to. Nothing is installed on your side to receive money: payments arrive as USDC transfers to the address you put in MERCHANT.
  • For a paying client, a funded key. Never put a real key in a file: every example here reads it from the environment.

Licence

Apache-2.0.

Questions fréquentes

Qu'est-ce que Neuronto Payments: x402 facilitator and API gateway ?

Put any API behind x402 in one call, settle USDC on Base, buy credits, find paid resources

Comment installer Neuronto Payments: x402 facilitator and API gateway ?

Il fonctionne comme serveur distant. Dans Claude Code : claude mcp add --transport http neuronto-payments-x402-facilitator-and-a 'https://pay.neuronto.com/mcp'. Pour les autres clients, collez la configuration JSON de cette page dans leurs réglages MCP.

Faut-il une clé API pour Neuronto Payments: x402 facilitator and API gateway ?

Son entrée au registre n'indique aucune clé ni secret obligatoire. Certaines fonctions peuvent tout de même demander un compte auprès du service auquel il se connecte.

Neuronto Payments: x402 facilitator and API gateway est-il open source ?

Oui. Son code est sur GitHub sous licence Apache-2.0.

Qui maintient Neuronto Payments: x402 facilitator and API gateway ?

Il est publié par neuronto. AI.tn le référence sans le maintenir ni le recommander.

Issu du registre MCP officiel. Être listé n'est pas une recommandation : vérifiez le code et les permissions d'un serveur avant de lui donner accès à vos données.