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HTTP Toolkit vs Sinch Email Mailosaur
People
Price
Published entry price
$10+per month
API Testing Tools
Annual estimate10 people, entry price
$120+
Flat rate
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API Testing Tools
Overview
Focus
API Testing Tools
API Testing Tools
Product
Open source tool for debugging, testing, and building with HTTP and HTTPS traffic interception.
Email and SMS testing for developers.
Headquarters
Remote
London, United Kingdom
Company size
2-10 employees
2-10 employees
Founded
2018
2013
Pricing details
Plan
Published entry price
Published rate
$10+ / month
Billable seats
Flat rate
Free options
Free plan
Free trial
Pricing source
Source updated
Nov 2, 2026
Oct 29, 2026