FixPayment MCP Server

A FastMCP server exposing a creditor-facing API for the FixPayment portal.
Connect any MCP-enabled AI assistant (e.g. Claude) to your FixPayment account to create accounts, update statuses, and run reports — all in plain English.

• MCP server URL: http://fixpayment.org:8000
• Docs: https://fixpayment.org/mcp/fixpayment-mcp.html
• Support: support@fixpayment.org

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Quick Start

# 1. Clone & install dependencies
pip install -r requirements.txt

# 2. Configure credentials
cp .env.example .env
# Edit .env and set FIXPAYMENT_DB_* variables

# 3. Run the server
python -m mcp.server
# or via FastMCP CLI:
fastmcp run mcp/server.py:mcp

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Environment Variables

Variable	Description	Default
FIXPAYMENT_DB_HOST	PostgreSQL host	localhost
FIXPAYMENT_DB_PORT	PostgreSQL port	54432
FIXPAYMENT_DB_NAME	Database name	fixpayment_db
FIXPAYMENT_DB_USER	Database user	fixpayment_user
FIXPAYMENT_DB_PASS	Database password	(required)
FIXPAYMENT_UPLOAD_PATH	Upload root directory	/var/www/fixpayment/uploads/

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Auth Model

Every MCP tool requires an api_key argument.
The key maps to a creditor_id and a plan (basic, reports, or full) in the mcp_api_keys table.

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Plans & Tools

Tool	basic	reports	full
ping	✓	✓	✓
get_plan_info	✓	✓	✓
get_account_summary	✓	✓	✓
list_accounts_basic	✓	✓	✓
validate_account_payload	✓	✓	✓
accounts_report		✓	✓
payments_report		✓	✓
settlements_report		✓	✓
performance_report		✓	✓
create_account			✓
bulk_create_accounts			✓
update_account_status			✓
add_account_document			✓

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Project Structure

fixpayments/
├── mcp/
│   ├── __init__.py
│   ├── server.py          # FastMCP instance + entrypoint
│   ├── db.py              # DB connection helper
│   ├── auth.py            # API key validation
│   └── tools/
│       ├── __init__.py
│       ├── basic.py       # Basic plan tools (5 tools)
│       ├── reports.py     # Reports plan tools (4 tools)
│       └── accounts.py    # Full plan tools (4 tools)
├── docs/
│   └── fixpayment-mcp.html
├── .env.example
├── .gitignore
├── requirements.txt
└── README.md

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Database Schema (required tables)

• mcp_api_keys — api_key, creditor_id, plan, active, expires_at
• fixpayment_accounts — accounts table
• fixpayment_payments — payments table
• fixpayment_settlements — settlements table
• fixpayment_account_documents — document attachments

To request an API key or upgrade your plan, email support@fixpayment.org.