playbook-mcp-publish
Guía práctica: crear y publicar un servidor MCP en el registro oficial. Una guía concisa basada en la publicación de Forge Agent Hub: la CLI oficial mcp-publisher en Go (no el paquete npm del mismo nombre), server.json (descripción de 100 caracteres, espacio de nombres io.github), inicio de sesión con token de GitHub, remotes frente a stdio y subidas de versión. ?demo=1 devuelve la tabla de contenidos y un extracto, sin pago.
Endpoint
GET|POST https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish
Parámetros
| Nombre | Obligatorio | Tipo | Descripción |
|---|---|---|---|
| Ninguno | |||
Ejemplo de petición (sin pagar — se espera 402)
curl -sS -D - "https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish?"
Ejemplo de desafío 402
El mismo objeto se envía también como cabecera PAYMENT-REQUIRED en base64. Las cantidades son unidades atómicas de USDC (6 decimales).
{
"x402Version": 2,
"error": "Payment required",
"resource": {
"url": "https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish",
"description": "Playbook: build and publish an MCP server to the official registry. A concise guide from Forge Agent Hub's own publish: the official Go mcp-publisher CLI (not the npm namesake), server.json (100-character description, io.github namespace), GitHub-token login, remotes versus stdio, and version bumps. ?demo=1 returns the table of contents and an excerpt, unpaid.",
"mimeType": "application/json"
},
"accepts": [
{
"scheme": "exact",
"network": "eip155:8453",
"amount": "3000000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0x7B8bf45ac6AcbA6D4CFB626b57D3f5fF3C9C89F7",
"maxTimeoutSeconds": 120,
"extra": {
"name": "USD Coin",
"version": "2"
}
}
]
}Reintentar con pago
curl -sS "https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish?" \ -H "PAYMENT-SIGNATURE: $PAYMENT"
Ejemplo de respuesta
{
"title": "Build and publish an MCP server to the official registry",
"toc": [
"1. What you are publishing",
"2. The official publisher is a Go CLI, not the npm name",
"3. A valid server.json",
"4. Login with a GitHub token (no browser required)",
"5. Stdio package versus the hosted remote",
"6. Version bumps and expired tokens",
"7. Check that the version is live"
],
"body": "Full playbook after payment."
}Demo / muestra gratuita
Esta herramienta está en el worker de la oleada 1. ?demo=1 devuelve una muestra o un extracto etiquetado con HTTP 200 y sin pago. El cuerpo no son datos en vivo. Las 3 primeras llamadas reales con éxito por IP y día UTC también son gratuitas.
curl -sS "https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish?demo=1"
Respuesta de demo etiquetada
{
"demo": true,
"demo_label": "DEMO / SAMPLE — not live data. This is a labelled example response and was not charged.",
"charged": false,
"tool": "/api/playbook-mcp-publish",
"docs": "https://agent-hub.dentreprise.workers.dev/tools/playbook-mcp-publish/",
"how_to_get_live_data": "Call the same URL without demo=1. The first 3 successful real calls per IP per UTC day are free; after that attach an x402 v2 PAYMENT-SIGNATURE (USDC on Base).",
"sample": {
"title": "Build and publish an MCP server to the official registry",
"toc": [
"1. What you are publishing",
"2. The official publisher is a Go CLI, not the npm name",
"3. A valid server.json",
"4. Login with a GitHub token (no browser required)",
"5. Stdio package versus the hosted remote",
"6. Version bumps and expired tokens",
"7. Check that the version is live"
],
"excerpt": "The official publisher is the Go CLI mcp-publisher from the modelcontextprotocol/registry GitHub releases, not the npm package that happens to be named mcp-publisher (that one starts an MCP stdio server). You write a server.json that validates against the official 2025-12-11 schema, log in with mcp-publisher login github --token and a GitHub PAT (this works without a browser), then mcp-publisher publish. Names use the io.github.<org>/<server> namespace; the description field is capped at 100 characters. The rest of this playbook covers remotes versus a stdio package, version bumps, and the expired-token error we had to fix.",
"demo": true,
"demo_label": "DEMO / excerpt — not the full playbook."
}
}JavaScript — @x402/fetch
Cliente oficial x402 v2. Instale @x402/fetch y @x402/evm. El nombre de paquete antiguo x402-fetch es la línea v1 obsoleta y no debe usarse con estos endpoints.
import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";
// Official x402 v2 client. The older package name "x402-fetch" is the deprecated v1 line.
const account = privateKeyToAccount(process.env.EVM_PRIVATE_KEY);
const fetchWithPayment = wrapFetchWithPaymentFromConfig(fetch, {
schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }],
});
const res = await fetchWithPayment(
"https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish"
);
console.log(await res.json());Python — x402
Paquete oficial de PyPI x402. Use x402HttpxClient (async) o x402_requests (sync) tras register_exact_evm_client con EthAccountSigner.
import asyncio
import os
from eth_account import Account
from x402 import x402Client
from x402.http.clients import x402HttpxClient
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client
# Official PyPI package: x402
account = Account.from_key(os.environ["EVM_PRIVATE_KEY"])
client = x402Client()
register_exact_evm_client(client, EthAccountSigner(account))
async def main():
async with x402HttpxClient(client) as http:
res = await http.get("https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish")
print(res.json())
asyncio.run(main())
# Sync alternative:
# from x402 import x402ClientSync
# from x402.http.clients import x402_requests
# client = x402ClientSync()
# register_exact_evm_client(client, EthAccountSigner(account))
# with x402_requests(client) as session:
# print(session.get("https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish").json())Servidor MCP — forge-agent-mcp
stdio cubre el catálogo completo (ambos hosts de API). Clone forge-agent-mcp y apunte su cliente MCP a src/server.mjs. El remoto Streamable HTTP alojado en la pasarela original sigue exponiendo solo las herramientas de esa pasarela.
{
"mcpServers": {
"forge-agent-hub": {
"command": "node",
"args": ["/path/to/forge-agent-mcp/src/server.mjs"]
},
"forge-agent-api": {
"url": "https://x402-gateway.forge-x402.workers.dev/mcp",
"transport": "streamable-http"
}
}
}Contenedor de herramienta LangChain
Envuelva los mismos clientes x402 como herramienta LangChain con DynamicStructuredTool (@langchain/core) o @tool (langchain_core).
import { DynamicStructuredTool } from "@langchain/core/tools";
import { z } from "zod";
import { wrapFetchWithPaymentFromConfig } from "@x402/fetch";
import { ExactEvmScheme } from "@x402/evm";
import { privateKeyToAccount } from "viem/accounts";
const account = privateKeyToAccount(process.env.EVM_PRIVATE_KEY);
const fetchWithPayment = wrapFetchWithPaymentFromConfig(fetch, {
schemes: [{ network: "eip155:8453", client: new ExactEvmScheme(account) }],
});
export const playbook_mcp_publish = new DynamicStructuredTool({
name: "playbook_mcp_publish",
description: "Playbook: build and publish an MCP server to the official registry.",
schema: z.object({}),
func: async (input) => {
const res = await fetchWithPayment("https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish" + "?" + new URLSearchParams(input));
return JSON.stringify(await res.json());
},
});import os
from langchain_core.tools import tool
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client
account = Account.from_key(os.environ["EVM_PRIVATE_KEY"])
client = x402ClientSync()
register_exact_evm_client(client, EthAccountSigner(account))
@tool
def playbook_mcp_publish() -> str:
"""Playbook: build and publish an MCP server to the official registry."""
with x402_requests(client) as session:
return session.get("https://forge-tools.dentreprise.workers.dev/api/playbook-mcp-publish").text