Use Grok with American Express
BankSync's MCP server can let Grok query supported American Express 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 American Express or Grok. Names are used only to describe potential account-data coverage and client compatibility.
How to connect Grok to American Express


Search for American Express in BankSync
Sign up for BankSync and, if American Express 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 Grok
Add the BankSync MCP server to Grok using your API key. Follow our Grok setup guide for step-by-step instructions.
Start querying
Ask Grok about supported American Express transactions, balances, and more using natural language.
Grok MCP Configuration
Add this configuration to let Grok query supported American Express account data through BankSync.
{
"mcpServers": {
"banksync": {
"url": "https://mcp.banksync.io",
"headers": {
"X-API-Key": "bsk_your_key_here"
}
}
}
}What Grok can access from American Express
Accounts
List the American Express accounts connected through BankSync and visible to the API key scopes you grant.
Transactions
Query supported American Express transactions with provider-supplied dates, descriptions, amounts, merchants, and categories.
Balances
Get current and available balances for supported American Express accounts.
Ready to connect Grok to American Express?
Start your 14-day free trial. Connect your bank, generate an API key, and start querying data in minutes.
Use American Express with another agent
The same BankSync MCP server and API key work with every one of these.
- Use American Express with ChatGPTOpenAI
- Use American Express with Claude CodeAnthropic
- Use American Express with Claude CoworkAnthropic
- Use American Express with Claude DesktopAnthropic
- Use American Express with CursorAnysphere
- Use American Express with GeminiGoogle
- Use American Express with Hermes AgentNousResearch
- Use American Express with Meta MuseMeta
Other banks you can use with Grok
Institutions in the same market that Grok can query through BankSync MCP.
- Use Airwallex with Grok🇫🇷 France
- Use Allianz Banque with Grok🇫🇷 France
- Use Arkéa Banking Services with Grok🇫🇷 France
- Use Arkéa Banque Entreprises et Institutionnels with Grok🇫🇷 France
- Use Arkéa Banque Privée with Grok🇫🇷 France
- Use Axa Banque with Grok🇫🇷 France
- Use Banque BCP with Grok🇫🇷 France
- Use Banque de Savoie with Grok🇫🇷 France
BankSync is not affiliated with, endorsed by, or an official partner of Grok or American Express. All product names and trademarks are the property of their respective owners. Bank connections are established through regulated open banking providers.