# Download Incremental Changes
source: https://developer.mastercard.com/bin-lookup/documentation/use-cases/delta/index.md

The `/bin-ranges/deltas/snapshots/{from_snapshot_id}` API allows BIN Lookup integrators (Merchants/Acquirers/Payment Service Providers (PSPs)/Fintechs) to retrieve only the account ranges that changed since a previous snapshot.

For example, a payment processor that keeps a local BIN intelligence database for routing and fraud scoring can use the delta endpoint to stay current without reloading the full dataset each day. After storing a baseline snapshot ID, the business retrieves only inserted, updated, and deleted ranges since the stored snapshot, applies those changes to its local store, and keeps downstream authorization and risk systems aligned with the latest issuer updates while reducing network, compute, and processing time.

1. **Get a Baseline Snapshot ID:** Call `POST /bin-ranges?page=1&size=1` and store the response `id` as your baseline snapshot.
2. **Request Delta Data:** Call `GET /bin-ranges/deltas/snapshots/{from_snapshot_id}?page=1&size=5000` using a snapshot ID from the last 7 days.
3. **Parse Results:** Extract `currentPageNumber`, `totalPages`, and `totalItems` from the response metadata.
4. **Update Your Local Dataset:** For each item, read the `operation` field and perform the matching action in your local store: `I` (insert a new range), `U` (update an existing range), `D` (delete the range).
5. **Paginate:** Increment the `page` parameter and continue fetching pages until `currentPageNumber >= totalPages`.
6. **Verify:** Confirm that all expected changes have been applied to your local data store.

## Example Sequence {#example-sequence}

The following shows an example sequence of the `/bin-ranges/deltas/snapshots/{from_snapshot_id}` endpoint.
Diagram delta

## Endpoint Structure {#endpoint-structure}


API Reference: `GET /bin-ranges/deltas/snapshots/{from_snapshot_id}`

## Next Steps {#next-steps}

### Useful Links {#useful-links}

* [View the full Open API specification](https://developer.mastercard.com/bin-lookup/documentation/api-section/index.md)
* [Review the API's error responses](https://developer.mastercard.com/bin-lookup/documentation/code-and-formats/index.md)