Flatkey AI is a unified AI API gateway that gives developers one key and one balance for leading AI models and a large catalogue of pay-per-call AI tools.

Do I have to rewrite my code?

No. Flatkey exposes an OpenAI-compatible API, so you keep your existing OpenAI SDK and change the base URL and key.

How does billing work?

Models and tools share one prepaid balance, and failed calls on Flatkey's side are not charged. Enterprise plans are available through sales.

What is Flatkey AI's monthly traffic and growth trend?

Flatkey AI currently receives 83.06K monthly visits, with a month-over-month traffic change of +49.48K (+147.4% growth rate). Its primary source market is China (58.6% share), including 34.42K direct visits/mo and 0 organic search visits/mo.

Is Flatkey AI free? What is its pricing model?

Flatkey AI operates on a Paid, Contact for Pricing pricing model. Usage-based paid pricing: models and tools share one prepaid balance, and failed Flatkey-side calls are not charged. Enterprise and GPU compute options are available on request. Supported billing and checkout platforms include: not listed.

Flatkey AI — unified AI API gateway for multi-model access

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Top 12 Flatkey AI Alternatives & Competitors

Side-by-side telemetry comparison of competing AI tools in the same primary category

View All Flatkey AI Alternatives →Explore all Large Language Models (LLMs) tools →

Rank	AI Tool	Monthly Visits	MoM Growth	Stickiness	Pricing	Head-to-Head
●	Flatkey AI	83.06K	+147.4%	41% Direct	Paid, Contact for Pricing	Current
1	ChatGPT	6B	+5%	—	Freemium	vs ChatGPT
2	Google Gemini	3B	+0.9%	—	Freemium	vs Google Gemini
3	DeepSeek	357.4M	+1%	78% Direct	Freemium	vs DeepSeek
4	OpenAI Platform	259.46M	+27%	43% Direct	Paid	vs OpenAI Platform
5	Google AI Studio	110.43M	-2.3%	54% Direct	Freemium	vs Google AI Studio
6	Perplexity	91.71M	-3.7%	72% Direct	Freemium	vs Perplexity