Kagi FastGPT API

aid: kagi:fastgpt-api
name: Kagi FastGPT API
description: FastGPT is Kagi's LLM-powered question answering API that combines a hosted model with live
  Kagi web search for grounded, cited answers.
humanURL: https://help.kagi.com/kagi/api/fastgpt.html
baseURL: https://kagi.com/api/v0
tags:
- FastGPT
- QA
- Grounded Answers
- LLMs
- Search
properties:
- type: Documentation
  url: https://help.kagi.com/kagi/api/fastgpt.html
- type: APIReference
  url: https://help.kagi.com/kagi/api/fastgpt.html
- type: Pricing
  url: https://help.kagi.com/kagi/api/overview.html
features:
- name: Grounded Answers
  description: LLM answers grounded in live Kagi search results with citations.
- name: Low Latency
  description: Optimized for fast question answering in interactive agents.
- name: Citation Sources
  description: Return source URLs and snippets alongside each answer.
useCases:
- name: Q&A Agents
  description: Build chat agents that answer factual questions with citations.
- name: Knowledge Assistants
  description: Power knowledge assistants that need grounded responses.
- name: Search-Backed Chat
  description: Replace bare LLMs with search-grounded chat experiences.
integrations:
- name: Python
- name: TypeScript
- name: Go
- name: Rust
authentication:
- type: API Key
  description: Bot API token sent via the Authorization header.