What shipping services does the USPS API support?

The API supports USPS Ground Advantage, Priority Mail, Priority Mail Express for domestic shipments, and Priority Mail International, Priority Mail Express International, and Global Express Guaranteed for international shipments.

How accurate are the shipping rates?

Rates are calculated in real-time using the official USPS REST API v3 with your actual origin and destination ZIP codes. Rates include dimensional weight calculations and zone-based pricing.

Does the API support international shipping?

Yes, the API supports international shipping to over 180 countries with automatic customs form requirements (CN22/CN23) and country-specific rate calculations.

Is there a rate limit on API calls?

The default rate limit is 60 requests per minute. For higher volume needs, contact us to discuss commercial rate limits.

What happens if the USPS API is unavailable?

The API automatically falls back to cached rates when the USPS API is unavailable, ensuring your checkout process continues to work.

Careers at Platphorm

Join the AI-first network with over 200 subdomains

Senior AI Integration Engineer

RemoteFull-timeEngineering

Platphorm News Network is looking for a Senior AI Integration Engineer to help build and scale our Model Context Protocol (MCP) integrations across our network of 200+ subdomains. You will work directly with CEO Michael Barbine to architect autonomous agent capabilities.

Responsibilities:

Design and implement MCP servers for various tools and services.
Scale Next.js Edge APIs connected to Neon Serverless Postgres.
Integrate LLM capabilities into existing applications.
Ensure robust security and rate limiting across the network.

Requirements:

5+ years of software engineering experience.
Deep expertise in TypeScript, React, and Next.js (App Router).
Experience with AI models, agents, and the Model Context Protocol.
Strong understanding of API design and RESTful principles.

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Platphorm News Network is an equal opportunity employer.

CEO Founder: Michael Barbine