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://jentic.com/install.sh?src=apis&api=%2Fapis%2Fstamps.com%2Fstamps" | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL "https://jentic.com/install.sh?src=apis&api=%2Fapis%2Fstamps.com%2Fstamps" | 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 One

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?

What agents get from Jentic-routed access to this vendor.

Setup

Wiring the Stamps.com USPS Shipping API by hand means setting up its API key in the Authorization header, mapping the rate, label, address-validation and tracking calls, and handling void and pickup flows yourself. Through Jentic you install once, import the Stamps.com USPS Shipping API from the API Directory, store the API key once, and your agent calls it.

Permission scoping

The API puts the label id in the URL path (/labels/{labelId}, /labels/{labelId}/void), so a rule can pin your agent to one label for reads and status. You choose the operations it may call, so destructive ones like voiding a label are not included unless you add them.

Credential isolation

Your Stamps.com API key is stored once, encrypted, by your own Jentic One instance and injected at execution time. It never enters the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'get shipping rates' or 'buy a shipping label', and Jentic returns the matching Stamps.com USPS Shipping API operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

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 your Jentic One instance 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 through Jentic One, the self-hosted execution layer, 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.

Can I limit what my agent is allowed to do with the Stamps.com USPS Shipping API?

Yes. Jentic One runs self-hosted, so your own rules decide which of the API's operations your agent may call and which credentials it may use. You can allow read and status calls such as GET /labels/{labelId} and GET /tracking/{trackingNumber} while withholding write operations, and because the label id sits in the URL path you can pin the agent to a specific label. Destructive operations like POST /labels/{labelId}/void or POST /pickups are excluded unless you explicitly add them.

Stamps.com USPS Shipping API

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

Official vendor OpenAPI document · agent-readyAnalyticsWeb AnalyticsapiKey11 EndpointsREST

For Agents

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

Use for: I need to shipping rates, I want to shipping label, Search for label details, Find all void shipping label

Not supported: Does not handle payments, communications, or crm - use for analytics only.

Stamps.com provides USPS shipping APIs for rate calculation, label creation, tracking, address validation, and pickup scheduling. The API exposes 11 endpoints secured with apiKey authentication.

Jentic One on Github View OpenAPI Document

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

Stamps.com USPS Shipping API