AI tools for aPIs

You send one prompt—heeb fires it across multiple LLM platforms simultaneously

Cartesia is a voice AI company that provides one API for speech generation, transcription and production voice agents fast enough for live conversation.

The Deepgram Voice Agent API is one real-time API that combines speech recognition, language model orchestration and speech synthesis, so developers do not have to stitch separate services together.

Kapa is a knowledge retrieval API for AI agents.

BlandAI gives you voice AI for phone calls at massive scale—without routing through OpenAI or Anthropic

Extruct AI is a company research API that finds and researches businesses from a curated index of 10 million companies or from anywhere on the live web.

Stop wasting emails on dead addresses

Fixie

Vocode is an open-source toolkit for building voice-based AI agents.

Apify is a web scraping and automation platform built around a marketplace of ready-to-run programs called Actors.

Amazon Lex is a managed AWS service for adding conversational interfaces to applications through voice and text.

Adthos is an AI audio platform for creating, editing and publishing spoken content.

Vapi is a developer platform for building, testing and deploying voice AI agents that talk to customers on the phone.

AudioStack is an agentic audio production platform for media and advertising.

Murf AI is a voice platform that turns text into natural-sounding speech and also runs conversational voice agents.

Verify by TaiLR Made AI is a resume screening aid that spots red flags before an interview.

CustomGPT.ai is a no-code builder that turns a company's own content into a business AI agent.

Crayon is a competitive intelligence platform that watches your competitors and turns what it finds into material sales reps can use.

HypeAuditor is an influencer marketing platform that helps teams find creators, check their quality and run campaigns from one place.