内容
# Meta Ads MCP Server
A Cloudflare Workers MCP server for Meta Ads account setup, campaign management, ad sets, creatives, audiences, reporting, and batch workflows.
This repo is built on `xmcp` and exposes a Streamable HTTP MCP endpoint plus browser-facing Meta OAuth routes.
## Open Source / Self-Hosted
This repository is intended to be deployed in your own Cloudflare account with your own Meta app credentials.
It does not ship with:
- a hosted control plane
- a shared Meta app
- a built-in end-user dashboard
- a JWT issuer for your users and workspaces
You bring:
- your Cloudflare Worker deployment
- your Meta developer app
- your JWT issuer or auth provider
- your own UI or backend that initiates the OAuth flow
## What It Does
- Runs as a Cloudflare Worker
- Uses direct Meta Graph API `fetch` calls instead of the Meta SDK
- Stores Meta user connections per workspace in D1
- Stores short-lived OAuth state in KV
- Encrypts stored Meta access tokens
- Protects MCP requests with your app-issued JWTs
## Endpoints
- `GET /health`
- `GET /app`
- `POST /mcp`
- `GET /oauth/meta/start`
- `GET /oauth/meta/callback`
## Auth Model
This server is multi-tenant. Every MCP request must include a bearer JWT issued by your app.
If you are open-sourcing this project, the important implication is that consumers must wire it into their own auth system. The server does not know how to identify a user or workspace without that JWT.
Required JWT claims:
- `sub` or `userId`
- `workspaceId`
- optional `roles`
Example payload:
```json
{
"sub": "user_123",
"workspaceId": "workspace_abc",
"roles": ["admin"]
}
```
Why `/oauth/meta/start` is not a generic public link:
- the server must know which workspace the Meta account should be attached to
- that workspace context comes from the JWT
- without it, the server cannot safely bind the resulting Meta token
## Tool Surface
Implemented tool families:
- Account and setup
- Campaign management
- Ad set management
- Creative and ads
- Audience and targeting
- Reporting and insights
- Batch helpers
The server currently registers 39 tools.
## Project Layout
- `src/tools` tool definitions grouped by domain
- `src/lib` auth, storage, OAuth, runtime, and Meta client helpers
- `src/services` domain-specific Meta service logic
- `src/middleware.ts` OAuth routing and MCP JWT auth
- `cloudflare-entry.mjs` Worker wrapper entry for Cloudflare-specific route interception
- `schema.sql` D1 schema
- `test` unit and contract-style tests
## Local Development
Install dependencies:
```bash
pnpm install
```
Run local dev:
```bash
pnpm dev
```
Useful scripts:
```bash
pnpm build
pnpm test
pnpm deploy
```
## Cloudflare Bindings
Required bindings:
- D1 database bound as `META_DB`
- KV namespace bound as `META_OAUTH_STATE`
Required secrets:
- `JWT_SECRET` or `JWT_JWKS_URL`
- `META_APP_ID`
- `META_APP_SECRET`
- `META_TOKEN_ENCRYPTION_KEY`
- `APP_UI_PASSWORD` for the built-in admin page at `/app`
Optional configuration:
- `JWT_ISSUER`
- `JWT_AUDIENCE`
- `APP_SESSION_SECRET`
- `APP_UI_WORKSPACE_ID`
- `APP_UI_USER_ID`
- `META_REDIRECT_URI`
- `META_GRAPH_VERSION`
- `META_OAUTH_SCOPES`
- `META_OAUTH_ALLOWED_RETURN_ORIGINS`
Defaults:
- `META_GRAPH_VERSION=v25.0`
- `META_OAUTH_SCOPES=ads_management,business_management`
- `APP_UI_WORKSPACE_ID=workspace_admin`
- `APP_UI_USER_ID=app_admin`
## Built-In Admin UI
The Worker now includes a small browser UI at `/app`.
What it does:
- prompts for an admin password
- starts the existing Meta OAuth flow without requiring you to manually mint a bearer JWT
- shows whether a Meta account is connected for the admin workspace
- loads accessible ad accounts using the same service logic as `get_ad_accounts`
Required setup:
1. Set `APP_UI_PASSWORD` on the Worker.
2. Make sure `META_REDIRECT_URI` matches your public host, for example:
```text
https://meta-mcp.gestalt.xyz/oauth/meta/callback
```
3. Open:
```text
https://meta-mcp.gestalt.xyz/app
```
## Meta App Setup
In your Meta app:
1. Add the Marketing API product.
2. Add a Website platform.
3. Set the Website platform URL to your Worker origin.
4. Set `App Domains` to your Worker domain.
5. Set the callback URL to:
```text
https://<your-worker-host>/oauth/meta/callback
```
If your app uses `Facebook Login` or `Facebook Login for Business`, also add that exact callback URL to the product-specific redirect URI settings.
For a Worker deployed on `workers.dev`, these fields usually need to match the Worker host exactly.
## Database
Apply the D1 schema:
```bash
pnpm wrangler d1 execute META_DB --remote --file schema.sql -y
```
Tables:
- `meta_connections`
- `meta_ad_accounts_cache`
## Deployment
Deploy the Worker:
```bash
pnpm deploy
```
After deploy:
1. note the public Worker URL
2. set `META_REDIRECT_URI` to `https://<your-worker-host>/oauth/meta/callback`
3. update the same callback in the Meta app settings
If you plan to use a separate frontend or dashboard on another origin, allow that origin for post-OAuth browser redirects:
```text
META_OAUTH_ALLOWED_RETURN_ORIGINS=https://your-ui.example.com,http://localhost:3000
```
Use your real frontend origin in production.
## Manual Test Flow
### 1. Generate a short-lived JWT
Use the same JWT secret your app uses for the Worker.
```bash
export JWT_SECRET="YOUR_JWT_SECRET"
TOKEN=$(node --input-type=module <<'NODE'
import { SignJWT } from 'jose';
const secret = new TextEncoder().encode(process.env.JWT_SECRET);
const token = await new SignJWT({ workspaceId: 'workspace_test', roles: ['admin'] })
.setProtectedHeader({ alg: 'HS256' })
.setSubject('user_test')
.setIssuedAt()
.setExpirationTime('10m')
.sign(secret);
console.log(token);
NODE
)
```
### 2. Start Meta OAuth
```bash
curl -i \
-H "Authorization: Bearer $TOKEN" \
"https://<your-worker-host>/oauth/meta/start?workspace_id=workspace_test"
```
Copy the `Location` header into your browser and complete the Meta login flow.
Expected success page:
```text
Meta account connected.
```
### 3. Initialize MCP
```bash
curl -s https://<your-worker-host>/mcp \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{"jsonrpc":"2.0","id":"init-1","method":"initialize","params":{"protocolVersion":"2025-03-26","capabilities":{},"clientInfo":{"name":"manual-test","version":"1.0.0"}}}'
```
### 4. List Tools
```bash
curl -s https://<your-worker-host>/mcp \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{"jsonrpc":"2.0","id":"tools-1","method":"tools/list","params":{}}'
```
### 5. Call a Real Tool
After OAuth succeeds, this should return the accessible ad accounts for that workspace:
```bash
curl -s https://<your-worker-host>/mcp \
-H "Authorization: Bearer $TOKEN" \
-H "Content-Type: application/json" \
-H "Accept: application/json" \
-d '{"jsonrpc":"2.0","id":"call-1","method":"tools/call","params":{"name":"get_ad_accounts","arguments":{}}}'
```
If you get a connect/reconnect error, the OAuth flow and the MCP call used different `workspaceId` values.
## Notes
- Cloudflare `workers.dev` domains can require extra care in Meta app settings.
- The Worker entrypoint explicitly intercepts OAuth routes before delegating to the generated XMCP Worker.
- The Cloudflare Worker build path is not identical to local `xmcp dev`, so always verify the deployed routes after OAuth-related changes.
## References
- [XMCP](https://xmcp.dev/docs)
- [Cloudflare Workers](https://developers.cloudflare.com/workers/)
- [Meta Marketing API Authorization](https://developers.facebook.com/docs/marketing-api/overview/authorization/)
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