Stamps.com USPS Shipping API

Name: Stamps.com USPS Shipping API
Brand: Stamps.com USPS Shipping API
Availability: InStock

✓ Official Vendor SpecAnalyticsWeb AnalyticsapiKey11 EndpointsREST

For Agents

Programmatically get shipping rates, create shipping label. Covers 11 operations with apiKey authentication.

Install Jentic One Beta

Connect the Stamps.com USPS Shipping API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Stamps.com USPS Shipping API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with Stamps.com USPS Shipping API.

Get shipping rates

Create shipping label

Void shipping label

Track shipment

GET STARTED

Start building with Stamps.com USPS Shipping API

Explore with Jentic

View OpenAPI Document

Use Cases

Patterns agents use Stamps.com USPS Shipping API for, with concrete tasks.

★ Analytics Operations

Use the Stamps.com USPS Shipping API to perform analytics operations programmatically. The API provides 11 endpoints covering core functionality including get shipping rates, create shipping label, get label details.

Call POST /rates to get shipping rates

Automated Account Management

Automate account operations by combining multiple Stamps.com USPS Shipping API endpoints. Agents can create shipping label and then get label details in a single workflow.

Call POST /labels to create shipping label, then verify the result

AI Agent Integration via Jentic

AI agents discover and call Stamps.com USPS Shipping API endpoints through Jentic without managing credentials directly. An agent searches for the required operation by intent, receives the matching endpoint schema, and executes the call with Jentic-managed authentication. This eliminates the need to read API documentation or handle apiKey tokens manually.

Search Jentic for 'get shipping rates', load the operation schema, and execute with Jentic-managed credentials

Key Endpoints

11 endpoints — stamps.

METHOD

PATH

DESCRIPTION

POST

/rates

Get shipping rates

POST

/labels

Create shipping label

GET

/labels/{labelId}

Get label details

POST

/labels/{labelId}/void

Void shipping label

GET

/tracking/{trackingNumber}

Track shipment

POST

/addresses/validate

Validate address

POST

/addresses/cleanse

Cleanse address

POST

/pickups

Schedule pickup

POST

/rates

Get shipping rates

POST

/labels

Create shipping label

GET

/labels/{labelId}

Get label details

POST

/labels/{labelId}/void

Void shipping label

GET

/tracking/{trackingNumber}

Track shipment

POST

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Stamps.com USPS Shipping API apiKey credentials are stored encrypted in the Jentic vault (MAXsystem). Agents receive scoped access tokens — raw secrets never enter the agent context.

Intent-based discovery

Agents search by intent (e.g., 'get shipping rates') and Jentic returns the matching Stamps.com USPS Shipping API operation with its input schema, so the agent can call the right endpoint without browsing docs.

Time to first call

Direct Stamps.com USPS Shipping API integration: 1-3 days for auth handling, response parsing, and error cases. Through Jentic: under 1 hour — search, load schema, execute.

FAQs

Specific to using Stamps.com USPS Shipping API through Jentic.

What authentication does the Stamps.com USPS Shipping API use?

The Stamps.com USPS Shipping API uses an API key passed in the `Authorization` header. Through Jentic, these credentials are stored encrypted in the MAXsystem vault and injected at execution time, so raw secrets never enter the agent context.

Can I get shipping rates with the Stamps.com USPS Shipping API?

Yes. Use the POST /rates endpoint. The API returns structured JSON responses that agents can parse and act on directly.

What are the rate limits for the Stamps.com USPS Shipping API?

Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.

How do I get shipping rates through Jentic?

Install the Jentic SDK with pip install jentic, authenticate at https://app.jentic.com/sign-up, then search for 'get shipping rates'. Jentic returns the matching Stamps.com USPS Shipping API operation with its input schema. Load the schema and execute the call — credentials are injected automatically.

How many endpoints does the Stamps.com USPS Shipping API have?

The Stamps.com USPS Shipping API exposes 11 endpoints covering account, addresses, insurance operations.

Stamps.com USPS Shipping API

Connect the Stamps.com USPS Shipping API to your agent

Capabilities

Start building with Stamps.com USPS Shipping API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs