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347import { ResourceTemplate } from '@modelcontextprotocol/sdk/server/mcp.js'
import { type MCPAccessSettings, mcpPlugin } from '@payloadcms/plugin-mcp'
import path from 'path'
import { fileURLToPath } from 'url'
import { z } from 'zod'
import { buildConfigWithDefaults } from '../buildConfigWithDefaults.js'
import { Media } from './collections/Media.js'
import { ModifiedPrompts } from './collections/ModifiedPrompts.js'
import { Posts } from './collections/Posts.js'
import { Products } from './collections/Products.js'
import { ReturnedResources } from './collections/ReturnedResources.js'
import { Rolls } from './collections/Rolls.js'
import { Users } from './collections/Users.js'
import { SiteSettings } from './globals/SiteSettings.js'
import { seed } from './seed/index.js'
const filename = fileURLToPath(import.meta.url)
const dirname = path.dirname(filename)
export default buildConfigWithDefaults({
admin: {
importMap: {
baseDir: path.resolve(dirname),
},
},
collections: [Users, Media, Posts, Products, Rolls, ModifiedPrompts, ReturnedResources],
localization: {
defaultLocale: 'en',
fallback: true,
locales: [
{
code: 'en',
label: 'English',
},
{
code: 'es',
label: 'Spanish',
},
{
code: 'fr',
label: 'French',
},
],
},
globals: [SiteSettings],
onInit: seed,
plugins: [
mcpPlugin({
/**
* Override the authentication method.
* This allows you to use a custom authentication method instead of the default API key authentication.
* @param req - The request object.
* @returns The MCP access settings.
*/
// overrideAuth: (req) => {
// const { payload } = req
// payload.logger.info('[Override MCP auth]:')
// return {
// posts: {
// find: true,
// },
// products: {
// find: true,
// update: true,
// },
// 'payload-mcp-tool': {
// diceRoll: true,
// },
// 'payload-mcp-prompt': {
// echo: true,
// },
// 'payload-mcp-resource': {
// data: true,
// dataByID: true,
// },
// } as MCPAccessSettings
// },
overrideApiKeyCollection: (collection) => {
collection.fields.push({
name: 'override',
type: 'text',
admin: {
description: 'This field added by overrideApiKeyCollection',
},
defaultValue: 'This field added by overrideApiKeyCollection',
})
return collection
},
collections: {
[Products.slug]: {
enabled: true,
},
posts: {
enabled: {
find: true,
create: true,
update: true,
delete: true,
},
description: 'This is a Payload collection with Post documents.',
overrideResponse: (response, doc, req) => {
req.payload.logger.info('[Override MCP response for Posts]:')
response.content.push({
type: 'text',
text: `Override MCP response for Posts!`,
})
return response
},
},
media: {
enabled: {
find: true,
create: false,
update: true,
delete: false,
},
description: 'This is a Payload collection with Media documents.',
},
},
globals: {
'site-settings': {
enabled: {
find: true,
update: true,
},
description: 'Site-wide configuration settings.',
},
},
mcp: {
handlerOptions: {
verboseLogs: true,
maxDuration: 60,
},
serverOptions: {
serverInfo: {
name: 'My Custom MCP Server',
version: '1.0.0',
},
},
tools: [
{
name: 'diceRoll',
description: 'Rolls a virtual dice with a specified number of sides',
handler: async (args: Record<string, unknown>, req) => {
const sides = (args.sides as number) || 6
const result = Math.floor(Math.random() * sides) + 1
const payload = req.payload
payload.logger.info(
`Dice Roll MCP Tool rolled a ${args.sides} sided die and got a ${result}`,
)
await payload.create({
collection: 'rolls',
data: {
sides,
result,
user: req.user?.id,
},
req,
overrideAccess: false,
user: req.user,
draft: true,
})
return Promise.resolve({
content: [
{
type: 'text' as const,
text: `# Dice Roll Result\n\n**Sides:** ${sides}\n**Result:** ${result}\n\n🎲 You rolled a **${result}** on a ${sides}-sided die!`,
},
],
})
},
parameters: z.object({
sides: z
.number()
.int()
.min(2)
.max(1000)
.optional()
.default(6)
.describe('Number of sides on the dice (default: 6)'),
}).shape,
},
],
prompts: [
{
name: 'echo',
argsSchema: { message: z.string() },
description: 'Creates a prompt to process a message',
title: 'Echo Prompt',
handler: async ({ message }, req) => {
const { payload } = req
payload.logger.info(`Echo Prompt was sent: ${message}`)
const modifiedPrompt = `This prompt was sent: ${message}`
await payload.create({
collection: 'modified-prompts',
data: {
original: message as string,
modified: modifiedPrompt,
user: req.user?.id,
},
req,
overrideAccess: false,
user: req.user,
draft: true,
})
return {
messages: [
{
content: {
type: 'text',
text: modifiedPrompt,
},
role: 'user',
},
{
content: {
type: 'text',
text: `This prompt was sent by userId: ${req.user?.id}`,
},
role: 'assistant',
},
],
}
},
},
],
resources: [
// Resource with a static URI
{
name: 'data',
description: 'Data is a resource that contains special data.',
handler: async (uri, req) => {
const payload = req.payload
payload.logger.info(`Data resource was requested`)
const text = 'My special data.'
await payload.create({
collection: 'returned-resources',
data: {
uri: uri.href,
content: text,
user: req.user?.id,
},
req,
overrideAccess: false,
user: req.user,
draft: true,
})
return {
contents: [
{
uri: uri.href,
text,
},
{
uri: uri.href,
text: `This was requested by user: ${req.user?.id}`,
},
],
}
},
mimeType: 'text/plain',
title: 'Data',
uri: 'data://app',
},
// Resource with a template
{
name: 'dataByID',
description: 'Data is a resource that contains special data.',
handler: async (uri, { id }, req) => {
const payload = req.payload
payload.logger.info(`Data by ID resource was requested`)
const text = `My special data for ID: ${id}`
await payload.create({
collection: 'returned-resources',
data: {
uri: uri.href,
content: text,
user: req.user?.id,
},
req,
overrideAccess: false,
user: req.user,
draft: true,
})
return {
contents: [
{
uri: uri.href,
text,
},
{
uri: uri.href,
text: `This was requested by user: ${req.user?.id}`,
},
],
}
},
mimeType: 'text/plain',
title: 'Data By ID',
uri: new ResourceTemplate('data://app/{id}', { list: undefined }),
},
],
},
// Experimental MCP tools
experimental: {
tools: {
collections: {
collectionsDirPath: 'test/plugin-mcp/collections',
enabled: true,
},
config: {
configFilePath: path.resolve(dirname, 'test/plugin-mcp/config.ts'),
enabled: true,
},
jobs: {
enabled: true,
jobsDirPath: 'dev/jobs',
},
auth: {
enabled: true,
},
},
},
}),
],
typescript: {
outputFile: path.resolve(dirname, 'payload-types.ts'),
},
})