Lookup ACH and wire participating financial institutions. We recommend using this endpoint when an end-user enters a routing number to confirm their bank or credit union.

## Rail data for institutions

Retrieve rail support data for a given institution.

To retrieve rail data for an institution, you'll need to specify the `/fed.read` scope when generating a token.

#### Parameters

| Name             | Type   |
|------------------|--------|
| `routingNumber`  | string |

Ask

```javascript
const routingNumber = routingNumber;
moov.institutions.lookupAllRailsByRoutingNumber(routingNumber);
```

## Search institutions

Search for institutions by their routing number or name.

To search institutions, you'll need to specify the `/fed.read` scope when generating a token.

#### Parameters

| Name             | Type               |
|------------------|--------------------|
| `routingNumber`  | string             |
| `exact`          | Optional boolean   |

Ask

```javascript
const routingNumber = routingNumber;
const exact = true;
moov.institutions.lookupByRoutingNumber(routingNumber, exact);
```