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

xmemory

Programmable memory

Programmable memory for agentic systems and workflows.

All sizes7 confirmed features

YepCode

Integration platform

Build and run AI-powered integrations in secure sandboxes.

All sizes9 confirmed features

Z-API

WhatsApp API

Connect systems to WhatsApp with messaging automation.

All sizes2 confirmed features

AITable.ai

Visual database

Visual database automation across thousands of apps.

All sizes3 confirmed features

SyncMate

WhatsApp automation

WhatsApp API for marketing automation and business tools.

All sizes

Dokifly

PDF document API

PDF API for no-code document generation.

All sizes5 confirmed features

letmepost

Social publishing API

Open-source API for publishing posts across social platforms.

All sizes9 confirmed features

lobstr.io

Data collection tools

No-code tools and APIs for collecting data at scale.

All sizes6 confirmed features

Manifest

LLM gateway

Open-source gateway connecting agents to AI providers.

All sizes5 confirmed features

Zernio

Marketing API

Marketing infrastructure for agent-driven outreach.

All sizes4 confirmed features

Sirenic

Business verification API

API for company data, KYB, and sanctions checks.

All sizes4 confirmed features

Tampermonkey

Userscript manager

Browser extension for customizing web pages with scripts.

All sizes3 confirmed features

Aden

AI agent cloud

Infrastructure for running autonomous AI agents.

🇺🇸 United StatesAll sizes3 confirmed features

Arga Labs

Agent sandboxes

Sandboxes for testing and training AI agents.

🇺🇸 United StatesAll sizes5 confirmed features

Clidey

Open-source data infra

Open-source tools for understanding and trusting data.

🇺🇸 United StatesAll sizes2 confirmed features

Cosmic

Headless CMS

Managed headless CMS for content teams.

🇺🇸 United StatesAll sizes3 confirmed features

Cumbuca

Pix infrastructure

Regulated Pix and Open Finance infrastructure.

🇧🇷 BrazilEnterprise3 confirmed features

Integuru

API generation

Generates production-ready APIs for websites and web systems.

🇺🇸 United StatesAll sizes2 confirmed features

Luca IQ

Professional tax software

Tax software for accounting firms.

🇺🇸 United StatesAll sizes2 confirmed features

Manufact

MCP cloud

Deploy and monitor MCP servers and apps.

🇨🇭 SwitzerlandAll sizes8 confirmed features

ObsessionDB

Managed ClickHouse hosting

Managed hosting for ClickHouse software.

🇺🇸 United StatesAll sizes

PropelAuth

B2B authentication

Authentication tools for B2B products.

🇺🇸 United StatesAll sizes7 confirmed features

Synnax

Hardware data ops

Data acquisition and control for hardware teams

🇺🇸 United StatesAll sizes1 confirmed features

Channel3

Product graph API

Product graph infrastructure for AI shopping experiences.

🇺🇸 United StatesAll sizes1 confirmed features

HeroUI

React UI library

Accessible UI components for React web and mobile apps.

🇦🇷 ArgentinaAll sizes

KugelAudio

Voice AI API

Voice AI and text-to-speech API hosted in Europe

🇩🇪 GermanyAll sizes6 confirmed features

Sola

Process automation

Agentic automation for enterprise workflows

🇺🇸 United StatesEnterprise1 confirmed features

Zorro

AI testing

AI testing for bugs and regression checks.

🇺🇸 United StatesAll sizes1 confirmed features

Alloy

AI prototyping

AI prototyping for product managers.

🇦🇺 AustraliaAll sizes3 confirmed features

Artillery

Performance testing

Full-stack performance and reliability testing.

🇮🇪 IrelandAll sizes6 confirmed features

atopile

Hardware design code

Code-native electronics design platform

🇺🇸 United StatesAll sizes

Autosana

AI testing

No-code E2E testing for mobile and web apps

🇺🇸 United StatesAll sizes10 confirmed features

Beam

Agent compute

High-performance compute for agents and inference

🇺🇸 United StatesAll sizes3 confirmed features

Bronco AI

Chip design AI

AI platform for chip design and verification

🇺🇸 United StatesAll sizes

Capuchin

Sovereign AI

On-prem AI memory for engineering organizations

🇺🇸 United StatesAll sizes2 confirmed features

Centauri AI

AI developer ops

AI products for data, coding agents, and developer infrastructure.

🇺🇸 United StatesAll sizes3 confirmed features

EdgeBit

Supply chain security

Supply chain security and dependency autofix.

🇺🇸 United StatesEnterprise2 confirmed features

Elodin

Autonomous systems simulation

Platform for building, testing, and deploying autonomous systems.

🇺🇸 United StatesAll sizes1 confirmed features

F4 Industries

GD&T analysis

Software for analyzing engineering drawings.

🇺🇸 United StatesEnterprise2 confirmed features

Freestyle

VMs for agents

Linux VMs for AI agents and code workloads.

🇺🇸 United StatesAll sizes5 confirmed features

Lark

End-to-end testing

Continuous self-healing tests for product surfaces.

🇺🇸 United StatesAll sizes2 confirmed features

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