Use Codex with Halifax
BankSync's MCP server can let Codex query supported Halifax account data that you have connected through BankSync and authorized for API access. Query your finances in natural language without spreadsheets or exports.
BankSync is not affiliated with, endorsed by, sponsored by, or partnered with Halifax or Codex. Names are used only to describe potential account-data coverage and client compatibility.
How to connect Codex to Halifax
Search for Halifax in BankSync
Sign up for BankSync and, if Halifax is available, link your account through a provider-hosted or bank-hosted authorization flow.
Generate an API key
Create an API key from the Developers section of your BankSync workspace.
Configure Codex
Add the BankSync MCP server to Codex using your API key. Follow our Codex setup guide for step-by-step instructions.
Start querying
Ask Codex about supported Halifax transactions, balances, and more using natural language.
Codex MCP Configuration
Add this configuration to let Codex query supported Halifax account data through BankSync.
[mcp_servers.banksync]
url = "https://mcp.banksync.io"
[mcp_servers.banksync.http_headers]
X-API-Key = "bsk_your_key_here"What Codex can access from Halifax
Accounts
List the Halifax accounts connected through BankSync and visible to the API key scopes you grant.
Transactions
Query supported Halifax transactions with provider-supplied dates, descriptions, amounts, merchants, and categories.
Balances
Get current and available balances for supported Halifax accounts.
Ready to connect Codex to Halifax?
Start your 14-day free trial. Connect your bank, generate an API key, and start querying data in minutes.
Use Halifax with another agent
The same BankSync MCP server and API key work with every one of these.
Other banks you can use with Codex
Institutions in the same market that Codex can query through BankSync MCP.
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- Use Santander Personal with Codex🇬🇧 United Kingdom
- Use Lloyds Bank with Codex🇬🇧 United Kingdom
- Use Bank of Scotland with Codex🇬🇧 United Kingdom
- Use Danske Bank Business with Codex🇬🇧 United Kingdom
BankSync is not affiliated with, endorsed by, or an official partner of Codex or Halifax. All product names and trademarks are the property of their respective owners. Bank connections are established through regulated open banking providers.