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Lob.com API

by Lob.com

US Address Verification

developer

Quick Reference

Base URL https://lob.com Auth type API Key Header Auth header Authorization: Bearer YOUR_TOKEN Rate limit Not officially published Pricing Enterprise / contact sales Free quota None Documentation https://lob.com/ Endpoint status Live — HTTP 200 — endpoint is accessible1.34s (checked Mar 29, 2026) Builder score D 32% builder-friendly
Pricing
28
Latency
60
Depth
14

Authentication

See documentation for auth details

Authorization: Bearer YOUR_TOKEN

Pricing

Model subscription Starting price Enterprise / contact sales Free quota None

Pay-as-you-go. Letters from $0.78/piece, postcards from $0.33. Address verification: $0.002/req.

Key Endpoints

MethodPathDescription
GET / See documentation for endpoint reference

Sample Request

curl 'https://lob.com'

Sample Response

{}

Data sourced from API Map. Always verify pricing and rate limits against the official Lob.com documentation.