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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.

All countries 🇺🇸 United States 914 🇬🇧 United Kingdom 86 🇩🇪 Germany 74 🇨🇦 Canada 42 🇫🇷 France 41 🇮🇳 India 34 🇦🇺 Australia 20 🇷🇺 Russia 19 🇨🇭 Switzerland 17 🇮🇱 Israel 15 🇧🇷 Brazil 14 🇨🇳 China 13 🇰🇷 South Korea 11 🇪🇸 Spain 11

SMBs Mid-market Enterprise All sizes

T

ThemeClerk

Theme editing

AI theme editor for BigCommerce stores.

All sizes

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W

WBStack

Wikibase hosting

Shared hosting platform for Wikibase.

All sizes2 confirmed features

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A

AmiiboAPI

Amiibo REST API

REST API for Amiibo data.

3 confirmed features

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A

An API of Ice And Fire

Fantasy data API

An API for Ice and Fire and Game of Thrones data.

All sizes5 confirmed features

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B

BdAPIs

Bangladesh data API

REST API for Bangladesh location data.

All sizes4 confirmed features

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B

Bible-api

Bible API

JSON API for retrieving Bible verses and passages.

All sizes5 confirmed features

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B

BriefTape

Financial news API

AI-summarized financial newswire API for developers and traders.

All sizes4 confirmed features

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C

CodeCogs

Math calculators

Interactive engineering calculators and downloadable code.

All sizes3 confirmed features

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C

ContentSnip

Dynamic content snippets

Automated dynamic website content with snippets and API connections.

All sizes1 confirmed features

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C

Copyscape

Plagiarism detection

Plagiarism checking software and API

All sizes2 confirmed features

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C

CurrencyBeacon

Currency rates API

REST currency data and MCP tools for developers.

All sizes1 confirmed features

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D

Datamuse

Writing and word APIs

Websites, apps, and APIs for writing and word discovery.

All sizes4 confirmed features

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D

Datumbox

Machine learning API

Machine learning API for smart applications.

All sizes4 confirmed features

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D

Dragon Fractal

Cloud cost analysis

Developer tools for cloud cost and server monitoring.

All sizes3 confirmed features

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E

EasyAR

AR development SDK

Augmented reality platform for developers.

All sizes4 confirmed features

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G

GetJsonip

IP geolocation API

Unlimited IP geolocation API

All sizes3 confirmed features

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G

GPTLocalhost

Local AI for Word

Local or cloud LLM use in Microsoft Word.

All sizes1 confirmed features

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G

Gridlastic

Cloud Selenium grid

Private Selenium grids for browser testing in the cloud.

All sizes5 confirmed features

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G

Gutendex

Book metadata API

JSON API for Project Gutenberg ebook metadata.

All sizes3 confirmed features

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I

Interzoid

Data quality APIs

APIs and tools for matching, enrichment, and data retrieval.

All sizes4 confirmed features

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I

IP-API

IP geolocation

Free IP geolocation API for developers.

All sizes3 confirmed features

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K

Kiprio

HTTP APIs

26 HTTP APIs for developers.

All sizes4 confirmed features

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L

LayoutIt!

Frontend builders

Frontend tools for Bootstrap and CSS Grid.

All sizes2 confirmed features

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L

LuaDNS

Managed DNS hosting

DNS hosting with Git and Lua scripting for developers.

All sizes4 confirmed features

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M

Magick

AI agent IDE

Visual IDE for building and deploying AI agents

All sizes4 confirmed features

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M

MailWizz

Self-hosted email marketing

Self-hosted email marketing software.

All sizes7 confirmed features

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M

Maio Apps

Atlassian add-ons

Apps for Atlassian Cloud and Google Sheets.

All sizes1 confirmed features

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N

nTask

Project management

Project management software for teams and SMBs.

SMBs2 confirmed features

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O

OCRWebService

OCR cloud API

SOAP and REST OCR API for scanned PDFs and images.

All sizes4 confirmed features

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O

OMDb API

Movie data API

REST API for movie information and posters.

All sizes4 confirmed features

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P

ProjectLocker

Source code hosting

User portal for code repository accounts.

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P

PropLine

Sports odds API

Player props API with graded results.

All sizes4 confirmed features

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R

Riak

NoSQL database

NoSQL database software for distributed systems.

Enterprise3 confirmed features

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R

RocketGit

Git hosting

Privacy-respecting Git hosting for public and private projects.

All sizes8 confirmed features

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S

SheerSEO

SEO rank tracking

SEO software for rank tracking and analysis.

All sizes1 confirmed features

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S

SolSigs

Solana data API

Solana data APIs with proof receipts for paid calls.

All sizes5 confirmed features

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T

Tafqit

Number to text API

Convert Arabic numbers into written text.

All sizes1 confirmed features

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T

Tollmint

Pay-per-call API

API that prices and charges per request.

All sizes4 confirmed features

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W

Webhook Relay

Webhook routing

Route, transform, and retry webhooks for any destination.

All sizes7 confirmed features

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W

Websolr

Hosted search

Hosted search for applications.

All sizes2 confirmed features

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W

WrapPixel

Admin dashboard templates

Admin dashboard and website templates for modern front ends.

All sizes2 confirmed features

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X

XFlux

X data API

X/Twitter API with monitors and webhooks.

All sizes4 confirmed features

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Z

Ziptastic

Zip code API

API that returns city, state, and country from a zip code.

All sizes2 confirmed features

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C

Calendarific

Holiday API

Holiday calendar API for global observances.

All sizes4 confirmed features

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E

Easy PDF Server

HTML to PDF API

Convert HTML or URLs to PDF through a REST API.

All sizes

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F

Fontello

Icon font generator

Tool for building custom icon fonts.

All sizes1 confirmed features

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J

JSON 2 JSONP

JSON conversion

A web service that converts JSON to JSONP.

All sizes1 confirmed features

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M

MalShare

Malware repository

Community repository for malware samples and tooling.

All sizes3 confirmed features

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