USPS

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Detail	Value
Category	Logistics
Base URL	https://apis.usps.com
Authentication	OAuth2 Client Credentials
Endpoints	6
Connector key	usps

Using USPS in a workflow

1. Go to Connections and click New Connection.
2. Pick USPS from the marketplace.
3. Enter your credentials (see Authentication above for what's expected).
4. In a workflow, drop an API Call node and select this connection.
5. Pick the operation you need from the Operation dropdown — the full list is below.

Available endpoints

Endpoint	Summary
GET	Tracking
GET	Address Validation
GET	Rates
GET	Labels
GET	Delivery Standards
GET	Pickup

Each endpoint is documented in full below. Use the outline on the right to jump to one.

GET

Tracking

Detail	Value
Operation ID	tracking_0
Method	GET
Path	``

Parameters

No parameters.

Using this endpoint in a workflow

1. Add an API Call node to your workflow.
2. Pick your USPS connection from the Connection dropdown.
3. In the Operation dropdown, select tracking_0.
4. Fill in the parameter fields that appear. Use {{...}} to reference upstream values.

What it returns

The API Call node writes the response to the workflow context:

{
  status: 200,
  success: true,
  data: { ...response body from the API... },
  latencyMs: 142
}

Reference response fields downstream as {{nodeId.data.path}}. The exact response shape is documented on the upstream USPS API reference.

GET

Address Validation

Detail	Value
Operation ID	address_validation_1
Method	GET
Path	``

Parameters

No parameters.

Using this endpoint in a workflow

1. Add an API Call node to your workflow.
2. Pick your USPS connection from the Connection dropdown.
3. In the Operation dropdown, select address_validation_1.
4. Fill in the parameter fields that appear. Use {{...}} to reference upstream values.

What it returns

The API Call node writes the response to the workflow context:

{
  status: 200,
  success: true,
  data: { ...response body from the API... },
  latencyMs: 142
}

Reference response fields downstream as {{nodeId.data.path}}. The exact response shape is documented on the upstream USPS API reference.

GET

Rates

Detail	Value
Operation ID	rates_2
Method	GET
Path	``

Parameters

No parameters.

Using this endpoint in a workflow

1. Add an API Call node to your workflow.
2. Pick your USPS connection from the Connection dropdown.
3. In the Operation dropdown, select rates_2.
4. Fill in the parameter fields that appear. Use {{...}} to reference upstream values.

What it returns

The API Call node writes the response to the workflow context:

{
  status: 200,
  success: true,
  data: { ...response body from the API... },
  latencyMs: 142
}

Reference response fields downstream as {{nodeId.data.path}}. The exact response shape is documented on the upstream USPS API reference.

GET

Labels

Detail	Value
Operation ID	labels_3
Method	GET
Path	``

Parameters

No parameters.

Using this endpoint in a workflow

1. Add an API Call node to your workflow.
2. Pick your USPS connection from the Connection dropdown.
3. In the Operation dropdown, select labels_3.
4. Fill in the parameter fields that appear. Use {{...}} to reference upstream values.

What it returns

The API Call node writes the response to the workflow context:

{
  status: 200,
  success: true,
  data: { ...response body from the API... },
  latencyMs: 142
}

Reference response fields downstream as {{nodeId.data.path}}. The exact response shape is documented on the upstream USPS API reference.

GET

Delivery Standards

Detail	Value
Operation ID	delivery_standards_4
Method	GET
Path	``

Parameters

No parameters.

Using this endpoint in a workflow

1. Add an API Call node to your workflow.
2. Pick your USPS connection from the Connection dropdown.
3. In the Operation dropdown, select delivery_standards_4.
4. Fill in the parameter fields that appear. Use {{...}} to reference upstream values.

What it returns

The API Call node writes the response to the workflow context:

{
  status: 200,
  success: true,
  data: { ...response body from the API... },
  latencyMs: 142
}

Reference response fields downstream as {{nodeId.data.path}}. The exact response shape is documented on the upstream USPS API reference.

GET

Pickup

Detail	Value
Operation ID	pickup_5
Method	GET
Path	``

Parameters

No parameters.

Using this endpoint in a workflow

1. Add an API Call node to your workflow.
2. Pick your USPS connection from the Connection dropdown.
3. In the Operation dropdown, select pickup_5.
4. Fill in the parameter fields that appear. Use {{...}} to reference upstream values.

What it returns

The API Call node writes the response to the workflow context:

{
  status: 200,
  success: true,
  data: { ...response body from the API... },
  latencyMs: 142
}

Reference response fields downstream as {{nodeId.data.path}}. The exact response shape is documented on the upstream USPS API reference.