SMSGo

Reviewed matches are labeled. Other suggestions come from a shared subcategory, use case, source listing or the same category. Compare features and current plans before choosing.

Product
OneMux Low-cost, OpenAI-compatible API for multiple AI models
MisterPilot Pay for AI APIs with UPI, not a credit card
Nexmo Nexmo is a simple two way SMS API with global reach and wholesale rates
Mailjet All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.
SMTP Zen Transactional email for freelancers, indie founders, domain investors, and developers—custom domains, per-client aliases, and guided SPF/DKIM/DMARC so mail reaches the inbox.
Dependal Dependal is transactional email infrastructure for B2B SaaS. Verified domains, enforced suppressions, throttles and clear logs — built to protect sender reputation.
MailChannels Transactional email API for platforms that send on behalf of others. Every customer, tenant, and AI agent gets its own sending identity, rate limits, and suspension path, so one compromised sender never takes down your a
EasySendSMS Global SMS API & Enterprise SMS Gateway for OTP, Marketing & Transactional Messaging.

Selected by category and available use-case details. A topic match does not establish equivalent features.

Product
Motorical Motorical: one Motor Block per project — own auth, observability, and automation. Transactional email API, SMTP relay, bulk campaigns, and encrypted mailboxes. EU-hosted.
JangoSMTP JangoSMTP is a transactional email delivery service that adds tracking and authentication to email.
Sentinet API Management and SOA Governance for enterprises and developers
Postmark Postmark is the easiest and most reliable way to be sure your important transactional emails get to the inbox. Simply & reliably parse recieved email to JSON for your webapp.
The SMS Works SMS API A low cost and reliable SMS API for developers
PlayFab PlayFab is a backend platform for games, delivering powerful real-time tools and services for LiveOps.

Added to this directory in the past 30 days. Dates refer to the directory listing, not the product launch.

Product
AI Prime Tech API access for coding tools and AI applications
WisGate Unified API for AI models
APIKO AI API APIKO AI API is an AI API gateway for developers.
Zuplo The API Gateway reinvented for engineers. Launch your B2B API in record time

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Profile
Martin Laxenaire Freelance front-end developer.
Christopher Hart Software Consulting Engineering Technical Leader at Cisco.
Wojtek Pluta I help developers discover practical ways to build AI-native apps with Oracle AI Database through content, workshops, and hands-on examples.

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Retold founder accounts from startups in the same category, each linked to the original.

Story
Tuple: building a business around the details of working together Ben Orenstein and his cofounders built a specialized pairing tool, then learned how growth changes the demands on reliability, design and the team behind a product.
How Bugfender turned an agency's debugging problem into a product business Jordi Giménez, Aleix Ventayol, and Stefan Klumpp built Bugfender after repeatedly struggling to diagnose problems on other people's phones. Turning their internal tool into a business required learning distribution, cont
How Auvik made the overlooked work of network management its starting point Marc Morin, Alex Hoff, and David Yach built Auvik around the manual work of understanding and maintaining business networks. The company expanded from that specific problem into traffic analysis, remote-work infrastructu
How Mahendra Alladi built ACCELQ around the people responsible for software quality ACCELQ grew from a recurring enterprise problem: release schedules were accelerating faster than testing teams could keep up. Mahendra Alladi built its product strategy around making automation practical for those teams,

Subcategories in the same part of the directory, with the number of listed products.