api Tools

LetterStack

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Templates, sending, and logs - without the $20/month markup

Bannx

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Design once, generate endless variations

api monitoring tool

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Monitor Your APIs Effortlessly

Alphorn

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Self-hostable notification router for developers.

GeoReady

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Find and fix why AI search ignores your website

Stainless

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Generate SDKs and MCP servers from your OpenAPI spec

Invest & Forget

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Non-custodial crypto savings bot, as a service.

deepface.dev

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Plug-and-play face verification API

SyncEthic AI

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Enterprise AI Governance

CachePilot

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Telemetry for OpenAI apps in production

Codeless Sync

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Automate finance API syncs to PostgreSQL in minutes

OVAPI — Free Browser Based API Client

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The free API client with unlimited teammates

Ignav

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Flight prices & booking links API

FormatFlex

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YouTube Intelligence & Surgical Affiliate Auditor

Flowsery

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Revenue-first analytics with real user journeys

PDF to Markdown

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Turn PDFs into clean, editable Markdown

DebugProbe.AspNetCore

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Compare API behavior across environments instantly

Doculin - PDFGen API, minus infra hassle

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PDF generation API, minus the infra hassle

Polter.io

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Polter.io is a desktop reverse proxy

CragData

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Discover and structure live web data for AI and RAG

Opencals Storefront API

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Build custom booking sites on a booking backend

OpenGem

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Free, Open-Source AI API Gateway in 1 file

Skillhound

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Give your agent access to every skill on GitHub

Krea 2 API

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Generate style-controlled images via the Krea 2 API