SSealbook

Developer Tools & APIs

Sealbook lists 4,084 Developer Tools & APIs products. Common specialties: AI app builder, Web scraping API, PDF generation API, Screenshot API, Cloud infrastructure. Most vendors are based in United States (914), United Kingdom (86), Germany (74), Canada (42). 3,539 have a feature-by-feature check from their own website and 1,737 publish plan prices. Ranked by how widely known each product is and how much we could confirm — vendors cannot pay for position.

Ask the AI for a pick

KrakenD

API gateway

API gateway for microservices and AI routing.

🇪🇸 SpainEnterprise4 confirmed features

Loader.io

Load testing

Cloud load testing for web apps and APIs.

🇺🇸 United StatesAll sizes6 confirmed features

Logibot

Warehouse robotics

AI platform for warehouse robot control.

🇧🇪 BelgiumAll sizes

LogPulse

Log monitoring

Log management and security monitoring software for teams.

🇩🇪 GermanyAll sizes2 confirmed features

Lucidic AI

AI model training

Custom models and harnesses trained on your data.

🇺🇸 United StatesEnterprise2 confirmed features

MailTester Ninja

Email verification

Real-time email checker, verifier, and finder.

🇬🇧 United KingdomAll sizes2 confirmed features

Matrix One

Life science compliance

Compliance software for life science companies.

🇩🇪 GermanyAll sizes1 confirmed features

Misaka.io

Cloud servers

Cloud servers, managed DNS, and IP transit.

🇺🇸 United StatesAll sizes3 confirmed features

MixRoute

LLM gateway

One API for 250+ AI models.

🇸🇬 SingaporeAll sizes4 confirmed features

MonkeyTech

AI automation

AI agents and custom software for small and mid-sized businesses.

🇻🇳 VietnamSMBs2 confirmed features

MWM

Mobile app platform

Build, run, and scale mobile apps with AI and publishing tools.

🇫🇷 FranceEnterprise2 confirmed features

MTS Web Services

Cloud platform

Cloud, AI, data, and development services for businesses.

🇷🇺 RussiaEnterprise5 confirmed features

Mycelium 365

Managed IT services

Managed IT, Microsoft 365, Azure, and cyber security.

🇦🇺 AustraliaMid-market4 confirmed features

Nethermind

Blockchain infrastructure

Ethereum infrastructure and blockchain research for organizations.

🇬🇧 United KingdomEnterprise

OneCLI

AI workflow agents

AI teammates for business-critical work across your tools.

🇺🇸 United StatesAll sizes2 confirmed features

OpenSpec

Spec framework

Framework for creating and managing software specifications.

🇦🇺 AustraliaAll sizes3 confirmed features

Opportify

Fraud detection API

Detect fake leads and form abuse with risk scoring.

🇺🇸 United StatesAll sizes4 confirmed features

Opstral

Operations intelligence

Governed AIOps for production systems and incident response.

🇮🇳 IndiaEnterprise2 confirmed features

OYNK

Web and software build

Web design and custom software development services.

🇬🇧 United KingdomAll sizes

past.dev

Memory API

Long-term memory API for AI agents

🇺🇸 United StatesAll sizes6 confirmed features

Patterno

Tender software

AI software for public tenders and bid preparation.

🇩🇪 GermanyAll sizes

Penetrify

Pen testing automation

Automated penetration testing for web apps and APIs.

🇨🇿 CzechiaAll sizes2 confirmed features

Prismatic

Embedded iPaaS

Embedded integrations and workflows for B2B software.

🇺🇸 United StatesAll sizes3 confirmed features

Prosponsive

AI agents

Local AI agents for background work and automation.

🇺🇸 United StatesAll sizes2 confirmed features

R-Szoft

AI agent development

AI agent development and custom software services.

🇭🇺 HungaryAll sizes1 confirmed features

Rectify

Ops for SaaS

Operations software for SaaS teams.

🇬🇧 United KingdomAll sizes3 confirmed features

RunState

Ops and ERP

Infrastructure and intelligent operations software for businesses.

🇲🇺 MauritiusAll sizes

SciFlow

Scientific authoring

Writing and publishing software for scientific texts.

🇩🇪 GermanyAll sizes2 confirmed features

sendmsg.io

Email API

Email API and SMTP relay for SaaS and businesses.

🇮🇳 IndiaAll sizes5 confirmed features

ShareOut

AI page builder

Self-hosted workspace for publishing live pages from data.

🇺🇸 United StatesAll sizes5 confirmed features

Smartface

Mobile app platform

Build native iOS and Android apps from one codebase.

🇺🇸 United StatesEnterprise2 confirmed features

Soulstack

AI workspace

Software products for AI work, creation, and hosting.

🇬🇧 United KingdomAll sizes1 confirmed features

Spectrum

A2P messaging

B2B SMS platform with APIs and role-based access.

🇷🇺 RussiaAll sizes3 confirmed features

StratCraft

Quant research AI

AI platform for quantitative research workflows.

🇦🇺 AustraliaAll sizes2 confirmed features

Thunders

AI test automation

AI test agents for end-to-end testing.

🇫🇷 FranceAll sizes2 confirmed features

Timeweb Cloud

Cloud infrastructure

Cloud infrastructure for business and development teams.

🇷🇺 RussiaAll sizes6 confirmed features

Tokonomics

AI cost metering

Track LLM usage, budgets, and AI spend.

🇨🇦 CanadaAll sizes5 confirmed features

TuxWeb

AI for business

AI products and infrastructure for Italian businesses.

🇮🇹 ItalyEnterprise2 confirmed features

UApiPro

Public APIs

Free public APIs for developers and creators.

🇨🇳 ChinaAll sizes5 confirmed features

Undermind

Research copilot

AI co-researcher for scientific literature.

🇺🇸 United StatesAll sizes1 confirmed features

Usermode

AI operations

AI-native operations platform with governed specialist agents.

🇬🇧 United KingdomAll sizes3 confirmed features

VidScope

Technical video extraction

Extract tools and frameworks from technical videos.

🇫🇷 FranceAll sizes2 confirmed features

Voix2Texte

Audio transcription

AI transcription for audio and video teams.

🇧🇷 BrazilAll sizes3 confirmed features

Walter

Document automation

Automates paperwork by reading documents and writing to ERP systems.

🇺🇸 United StatesEnterprise1 confirmed features

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