Comparison
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Mintlify | 450 USD/mo | trial | APIs & models |
 OpenRouter | not listed | yes | APIs & models |
 Claude Platform (Anthropic API) | 2 USD input / 10 USD output | no | APIs & models |
 Groq | not listed | ? | APIs & models |
 Google AI Studio | 0,75 USD | ? | APIs & models |
 OpenAI Platform | 0,10 USD | ? | APIs & models |
 AgentMail | 20 USD/mo | yes | APIs & models |
 Metorial | 250 USD/mo | yes | APIs & models |
 HandyAI | not listed | yes | APIs & models |
Each alternative in short
1. OpenRouter
A unified API and chat interface giving access to 500+ AI models from 80+ providers, for developers and teams who want one key and better uptime.
Yes, there is a free plan. Free plan: 25+ free models, 4 free providers, chat and API access, activity logs, 5 workspaces, 50 requests/day, community support.
2. Claude Platform (Anthropic API)
API and managed agent infrastructure for developers and enterprises building and running AI agents in production with Claude models.
No - according to the vendor, it is paid only.
3. Groq
Fast AI inference cloud for developers and companies running AI models at scale, built on Groq's LPU chips.
The vendor does not state this clearly on the homepage or pricing page.
4. Google AI Studio
Browser-based workspace for developers to prototype with Gemini and other Google AI models, then move the same work to production via the Gemini API.
The vendor does not state this clearly on the homepage or pricing page.
5. OpenAI Platform
Developer platform for building applications with the OpenAI API, aimed at software developers.
The vendor does not state this clearly on the homepage or pricing page.
6. AgentMail
Email inbox API that gives AI agents their own real email inboxes to send, receive, and search mail.
Yes, there is a free plan. Free plan: 3 inboxes, 3,000 emails/month, 3 GB storage, no credit card required.
7. Metorial
Infrastructure that connects AI agents and employees to business tools through one governed, MCP-based gateway.
Yes, there is a free plan. Metorial Dev is free: 500K tool calls per month, unlimited auth connections, two team members, 10 provider integrations, one environment, and a free Metorial Workforce trial.
8. HandyAI
A set of single-purpose, browser-based tools for counting LLM tokens, estimating API costs and building prompts, aimed at prompt engineers and AI developers.
Yes, there is a free plan. 10 free tools with no sign-up required. Free access to the live tools is described on the page.
FAQ
What is the best alternative to Mintlify?
The most popular option in the same category is OpenRouter. See the comparison table above.