A Lob alternative for first-class letters at volume

Lob is the best-known direct mail API. If you mostly mail first-class letters at volume and want a partner who prints them, tracks every piece and answers the phone, SprintMail is built for that.

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  • 4,000+ orders processed daily
SprintMail tracking
Sample order

Letter to

Jane Doe

123 Main St, Austin, TX 78701

Status

Mailed

  1. Created
  2. Printed
  3. Mailed
  4. Delivered

Usually 4 to 7 business days by USPS First-Class

tracking.sprintmail.io, open to you and the people you mail

SprintMail and Lob, side by side

Where the two services overlap, and where they differ.

SprintMail compared with Lob
First-class letters SprintMail Yes Lob Yes
API SprintMail Yes Lob Yes [1]
MCP server for AI agents SprintMail Yes Lob Not listed on their site [1]
Postcards and checks SprintMail Letters only Lob Yes [1]
Tracking on every letter SprintMail Yes, in our own portal Lob Tracking events in their platform [1]
Pricing SprintMail Quoted by volume Lob Published on their site [1]
White-label for partners SprintMail Available Lob Not listed on their site [1]

Choose SprintMail when

  • You mostly mail first-class letters at volume and want one partner for the print, the postage and the tracking.

  • Your letters should go out from your app, your CRM, or an AI agent.

  • Every letter needs tracking, and your customers should see it without calling you.

Choose Lob when

You need postcards, checks or a self-serve campaign platform as well as letters. SprintMail is built for letters.

Need letters at volume with a partner behind them? That is our whole job.

Ready to move your letters over?

Become a Partner

Questions

The short answers. Anything else, ask in your application and we will take it from there.

Is SprintMail a Lob alternative?

Yes, for first-class letters at volume. SprintMail prints and mails them by USPS First-Class from El Paso, Texas, with an API, an MCP server for AI assistants, and a tracking portal your customers can use.

Does SprintMail do postcards or checks?

Not yet. SprintMail is built for letters. If you need postcards or checks, Lob offers them.

Does SprintMail offer Certified Mail?

Not yet. Certified Mail might be coming soon. For now, we add features as our users and partners request them.

How do I switch from Lob?

Send us a sample month of letters when you apply. We will quote by volume and set up your API key and templates.

Does SprintMail have an MCP server?

Yes. The SprintMail MCP server lets Claude, ChatGPT, Cursor, VS Code and Codex check addresses, preview a send and mail a letter with approval.

Source: [1] lob.com, checked November 4, 2026. Details change; check their site for their current offer.

Switching from Lob?

Send us a sample month of letters when you apply. We will quote by volume and set up your API key and templates.

Become a Partner