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

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

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/`

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.

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`			✓

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

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.

FixPayment