Both print labels. The differences show up the moment your volume grows past the point Stamps.com was built for.
See EasyPost in Action → Jump to ComparisonStamps.com built a clean, simple product for small businesses printing labels from home. That's not a criticism—it's exactly what they set out to do. The problem is mid-market shipping operations weren't part of that design.
100+ carriers, AI-powered rate selection, and 99.99% uptime — built for businesses where shipping is infrastructure, not an afterthought.
Simple UI for printing USPS and UPS labels. Works well at low volume — significant gaps appear as complexity and volume grow.
Every dimension that affects your cost, flexibility, and ability to grow.
| What Matters | EasyPost | Stamps.com |
|---|---|---|
| Cost Control | ||
| When rates spike | Shift carriers the same day EP WINS | No alternative carriers to move to GAP |
| Spotting where you overpay | Luma AI benchmarks spend and flags cost leaks EP WINS | No reporting or intelligence layer GAP |
| Protection from billing errors | $22M/year in erroneous charges caught and disputed EP WINS | No active dispute process GAP |
| Rate discounts off retail | Up to 88% off retail rates EP WINS | Negotiated USPS & UPS rates only GAP |
| Pricing model | Pay-per-use — scales with volume EP WINS | Monthly subscription from $19.99/mo GAP |
| Carrier Coverage | ||
| Carrier count | 100+ domestic, regional, and international EP WINS | USPS and UPS only GAP |
| International shipping | Full support — global carrier network EP WINS | Not supported GAP |
| Regional carrier access | Extensive EP WINS | Not available GAP |
| Bring your own carrier account | ✓ | ✓ (USPS & UPS only) |
| Scale & Reliability | ||
| Uptime SLA | 99.99% published SLA EP WINS | No published SLA; documented outage history GAP |
| Support coverage | 24/7/365 including Sundays EP WINS | Phone support Mon–Fri, 6am–6pm PT only GAP |
| High-volume capacity | Scales automatically — no ceilings EP WINS | Not built for high-volume operations GAP |
| Peak-season reliability | Proven at billions of shipments EP WINS | Scheduled maintenance windows are common GAP |
| Intelligence & Automation | ||
| AI carrier selection | Luma AI selects optimal carrier per shipment EP WINS | Not available GAP |
| Shipping analytics | Luma AI Insights — full performance visibility EP WINS | Not available GAP |
| Rate simulation | Luma Advisor simulates carrier scenarios EP WINS | Not available GAP |
| Platform & Integrations | ||
| API access | Full RESTful API — SDKs in 7 languages EP WINS | Basic API available |
| Shipment protection | EasyPost Guard — insurance, claims, purchase protection EP WINS | Not available GAP |
| Branded tracking | Custom pages, SMS/email notifications, real-time updates EP WINS | Not available GAP |
| Address verification | Built-in address verification API EP WINS | Basic address verification |
| Free to start | ✓ $0 to get started | ✗ Monthly subscription required GAP |
Stamps.com works well inside a narrow use case. These are the moments it doesn't.
When rates spike or a carrier misses SLAs, there's nowhere to go. Mid-market shippers need flexibility. Stamps.com gives you two options and calls it a day.
Cost & carrier flexibility riskStamps.com prints the label you ask for. EasyPost's Luma AI identifies which label you should buy — automatically, on every shipment.
Cost intelligence riskStamps.com has a documented history of reliability issues. Phone support is unavailable on weekends — exactly when peak-season problems surface.
Reliability riskStamps.com's UI was designed for printing labels from a home office. Mid-market ops teams need multi-user workflows and carrier intelligence — not a postage meter replacement.
Operational scale riskStarting at $19.99/month with no pay-per-use option, Stamps.com charges you whether volume is high or low. EasyPost scales in both directions.
Cost structure riskThe difference isn't visible at 200 shipments a month. It becomes very visible at 20,000.
With only USPS and UPS available, rate increases mean absorbing the cost. There's no third carrier to pivot to and no support when the team discovers the problem on a Sunday mid-peak.
Luma AI flags the increase and identifies a regional carrier as cheaper for specific zones. The team shifts a portion of volume within the week — no new integration required.
International shipping isn't supported. The team pieces together a separate workflow with a different vendor — two systems, two bills, two sets of carrier relationships to manage.
International carriers activate through the same integration already handling domestic volume. Address validation, customs, and rate comparison all run on one platform.
Documented outage history and scheduled maintenance windows make downtime during peak season a known risk. Phone support is closed on weekends — exactly when it's needed most.
99.99% uptime maintained through consecutive peak seasons. 24/7/365 support staffed and ready — including Sundays and holidays.
The right platform depends on where your business is today — and whether it can take you where you're going.
The honest bottom line: Stamps.com is a fine product for its audience. Mid-market ops teams aren't that audience. EasyPost includes every carrier Stamps.com connects to — plus 98 more. You don't give up coverage by switching. You gain the infrastructure to grow without rebuilding.
Yes. There's no subscription fee to get started. EasyPost charges per label, not per month — so you only pay when you ship. Most teams generate their first label the same day they sign up.
No. You can bring your own USPS, UPS, FedEx, and other carrier accounts and rate-shop them alongside EasyPost's Wallet Carrier rates. You keep your relationships and gain access to 100+ additional carriers through a single integration.
Most teams complete integration within a day. EasyPost's RESTful API has SDKs in seven languages — Python, Node.js, Ruby, PHP, Java, C#, and Go — and a full sandbox environment for testing before you go live.
EasyPost absorbs those changes on your behalf. When a carrier updates their integration requirements, EasyPost's team handles it — your code stays intact and your workflow continues uninterrupted.
See exactly what EasyPost looks like for your operation before committing to anything. Free to start. Most teams are live within a day.
See EasyPost in Action → Talk to a Shipping Expert