Stream MCP Server

An MCP server for the Stream (streampay.sa) payment platform, built with FastMCP.

Exposes 27 tools across six resource domains — payment links, customers, products, coupons, invoices, and payments — plus a read-only OpenAPI documentation resource.

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Quick Start

1. Install

# Clone & install in editable mode
git clone <repo-url> stream-mcp-server && cd stream-mcp-server
pip install -e ".[dev]"

2. Configure

cp .env.example .env
# Edit .env and set your Stream API key:
#   STREAM_API_KEY=sk_live_…

Variable	Default	Description
STREAM_API_KEY	(required)	Your Stream API key
STREAM_BASE_URL	https://stream-app-service.streampay.sa	API base URL
STREAM_TIMEOUT	30	Request timeout (seconds)
STREAM_MAX_RETRIES	2	Retry count for 429 / 5xx

3. Run

# stdio transport (default — for Claude Desktop / Cline)
stream-mcp

# SSE transport (for web-based agents)
stream-mcp --transport sse --port 8000

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Claude Desktop Integration

Add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "stream": {
      "command": "stream-mcp",
      "env": {
        "STREAM_API_KEY": "your_key_here"
      }
    }
  }
}

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Available Tools

Payment Links

Tool	Description
create_payment_link	Create a new checkout / payment link
list_payment_links	Paginated list with optional status filter
get_payment_link	Get a single payment link by ID
deactivate_payment_link	Deactivate / archive a payment link

Customers

Tool	Description
create_customer	Create a customer with name, email, phone, metadata
list_customers	Paginated list of customers
get_customer	Get a single customer by ID
update_customer	Update customer fields
delete_customer	Soft-delete a customer

Products

Tool	Description
create_product	Create a one-time or recurring product
list_products	List products with optional type filter
get_product	Get a single product by ID
update_product	Update product name, description, or price
archive_product	Archive a product

Coupons

Tool	Description
create_coupon	Create a fixed or percentage discount coupon
list_coupons	List coupons with optional status filter
get_coupon	Get a single coupon by ID
deactivate_coupon	Deactivate a coupon

Invoices

Tool	Description
create_invoice	Create a ZATCA-compliant invoice
list_invoices	List invoices with filters
get_invoice	Get a single invoice by ID
send_invoice	(Re)send an invoice via email / SMS
void_invoice	Void / cancel an unpaid invoice

Payments

Tool	Description
list_payments	List payments with filters
get_payment	Get payment details
refund_payment	Issue a full or partial refund

Resources

Resource URI	Description
stream://docs/openapi	Full Stream OpenAPI spec (cached, auto-refreshed)

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Remote Deployment (Hosted URL)

You can deploy the MCP server as a hosted URL so users connect to it remotely (like https://mcp.linear.app/sse) — no local installation needed.

Each user passes their own Stream API key as a Bearer token.

1. Run locally (remote mode)

# No STREAM_API_KEY needed — each user provides their own
stream-mcp-remote
# → Listening on http://0.0.0.0:8000

# Custom host/port
HOST=0.0.0.0 PORT=3000 stream-mcp-remote

2. Deploy with Docker

docker build -t stream-mcp .
docker run -p 8000:8000 stream-mcp

3. Deploy to a cloud platform

Railway:

railway up

Fly.io:

fly launch
fly deploy

Render: Connect your GitHub repo and set the Docker build path.

Your server will be available at something like:

https://stream-mcp.up.railway.app/mcp

4. How users connect (remote)

Users add this to their MCP client config:

Claude Desktop / VS Code:

{
  "mcpServers": {
    "stream": {
      "url": "https://your-domain.com/mcp",
      "headers": {
        "Authorization": "Bearer sk_live_YOUR_STREAM_API_KEY"
      }
    }
  }
}

Each user passes their own Stream API key as the Bearer token. The server never stores keys — they are used only for the duration of the session.

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Project Structure

src/stream_mcp/
├── server.py          # FastMCP app entry-point (local + remote modes)
├── config.py          # Settings from env vars
├── client.py          # Async HTTP client (auth, retries, errors)
├── auth.py            # Bearer token middleware (remote mode)
├── helpers.py         # get_client() — resolves per-request StreamClient
├── models/            # Pydantic v2 request/response models
│   ├── payment_links.py
│   ├── customers.py
│   ├── products.py
│   ├── coupons.py
│   ├── invoices.py
│   └── payments.py
└── tools/             # FastMCP tool definitions
    ├── __init__.py    # Registers all tools
    ├── payment_links.py
    ├── customers.py
    ├── products.py
    ├── coupons.py
    ├── invoices.py
    ├── payments.py
    └── docs.py        # OpenAPI resource

Adding a new resource domain = add one file in models/, one in tools/, and one import line in tools/__init__.py.

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Error Handling

All tools catch StreamAPIError and return a structured dict instead of raising:

{
  "error": true,
  "code": 422,
  "message": "Validation failed: …"
}

This ensures the LLM agent always receives a usable response.

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Development

# Install with dev dependencies
pip install -e ".[dev]"

# Run tests
pytest tests/ -v

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License

MIT