Infrastructure Updated 2026-04

AI API

Definition

An AI API allows developers to integrate artificial intelligence capabilities into their applications.

See also in the glossary

L
LLM (Large Language Model)
An LLM is an AI model trained on billions of texts, capable of understanding and generating human language.
M
MCP (Model Context Protocol)
MCP is an open protocol that standardizes the connection between LLMs and external tools/data.
A
AI Inference
Inference is the process of using a trained AI model to generate predictions or responses from new data.
E
Embedding
An embedding is a numerical representation (vector) of text or data, capturing its semantic meaning.

Tools that use ai api

C
ChatGPT
The world's most used conversational AI assistant
4.6/5
C
Claude
The AI that understands nuance, by Anthropic
4.7/5
D
DeepSeek
The open source Chinese model rivaling GPT-4
4.7/5
E
ElevenLabs
The most advanced AI audio platform
4.5/5

Frequently Asked Questions

How much does an AI API cost?
OpenAI API charges ~$2.50/million tokens for GPT-4o. DeepSeek is ~10x cheaper. Prices are dropping fast.
Do you need to code to use an AI API?
Generally yes, but Zapier, Make and n8n allow calling AI APIs without code through visual connectors.