# M&T Bank

> M&T Bank (M&T Bank Corporation, NYSE: MTB) is a US super-regional bank holding company headquartered in Buffalo, New York, operating through Manufacturers and Traders Trust Company and owning Wilmington Trust. It runs a first-party developer portal / "API Store" at developer.mtb.com for institutional and wholesale clients, covering Banking & Treasury and Wilmington Trust Custody APIs. The portal is gated behind Microsoft Entra login and Azure API Management subscription keys; per-product OpenAPI reference is available only after authentication. No public FDX / CFPB Section 1033 consumer data-access API is documented at review time; consumer-permissioned data is shared through aggregators (Plaid).

## Developer

- [Developer Portal](https://developer.mtb.com/): M&T API Store home (Entra-gated).
- [APIs](https://developer.mtb.com/apis): Banking & Treasury and Custody API product listing.
- [Getting Started](https://developer.mtb.com/getting-started): Onboarding and subscription-key setup.
- [Support](https://developer.mtb.com/support): Developer support channel.

## Banking & Treasury APIs

- [Payment Initiation API](https://developer.mtb.com/apis): Institutional payment initiation (gated reference).
- [Payment Status API](https://developer.mtb.com/apis): Payment status lookup (gated reference).
- [Cash Activity API](https://developer.mtb.com/apis): Cash activity reporting for treasury-management clients.
- [Cash Projection API](https://developer.mtb.com/apis): Cash projection / forecasting.
- [Pending Transactions API](https://developer.mtb.com/apis): Pending transactions reporting.
- [Event Notification API](https://developer.mtb.com/apis): Callback/webhook subscription with request signing.

## Wilmington Trust Custody APIs

- [Custody End of Day API](https://developer.mtb.com/apis): Custody end-of-day product for institutional clients.
- [Fund Accounting API](https://developer.mtb.com/apis): Fund valuation and accounting (fund administration).
- [Account Valuations API](https://developer.mtb.com/apis): Account valuations for custody/portfolio reporting.
- [Position Exposure API](https://developer.mtb.com/apis): Position exposure for institutional custody/portfolio clients.

## Company

- [M&T Bank](https://www.mtb.com/): Corporate site.
- [Treasury Management](https://www.mtb.com/commercial/treasury-management): Commercial treasury-management services.
- [Newsroom](https://newsroom.mtb.com/): Company news and press.
- [Terms of Use](https://www.mtb.com/help-center/bank-policies/terms-of-use)
- [Privacy](https://www.mtb.com/privacy)

## Notes

- Authentication: Microsoft Entra login + Azure API Management subscription keys. Per-product OpenAPI is available only after authenticated portal login.
- No public OpenAPI, well-known discovery, security.txt, SDK, CLI, or MCP surface was found at review time (developer.mtb.com serves an Angular SPA shell for all deep-link paths).