Alternatives

Products that do what Best API does

OpenAI-compatible API workflow, 25% lower cost

1
OpenAI o1 API ▲458
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2024
2
APIPark▲718
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Poe API▲146
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4
Free LLM API Pricing Calculator▲175
Calculate and compare the cost of the latest LLM APIs
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API Pick▲71
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Feb 2026
6
CheapAI▲3
Drop-in AI API replacement — cheaper, same SDK
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7
AiPrice▲96
API for calculating OpenAI LLM tokens and pricing
2023
8
OpenAI API Analytics▲132
Analyze your OpenAI API usage and logs in real-time
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9
ModelHub API▲4
One API Key. 45+ AI Models. 43x Cheaper Than OpenAI.
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ServerlessAI – Build, scale, and monetize AI apps without back end▲86
Hello HN, I’ve always loved building frontend-only apps—those you can prototype over a weekend, host for free on GitHub Pages, and scale to millions of users. Unfortunately, AI-enabled apps complicate things, as exposing your OpenAI key to the world is obviously a no-go. This also means mobile developers often have to run their own servers. That’s why I built ServerlessAI, an API gateway that lets you securely call multiple AI providers directly from client side using OpenAI-compatible APIs. You can authenticate users through any identity provider, like Google or Apple, and set per-user…
2024 · serverlessai.dev
11MA
Making an open source project regrouping the most interesting AI APIs▲8
Hi, I'm working on a project that regroups all best AI (AIaaS) from different providers (GCP, AWS, Azure, DeepL, etc.) in one API (https://github.com/edenai/edenai-apis). I've got asked the question : why aren't you regrouping Open Source models (instead of proprietary APIs) into one repo? Well because it doesn't make sens to deploy and maintain large pytorch (or other framework) AI models (especially for document parsing, image and video moderation or speech recognition) in every solution that wants AI capabilities. So using APIs makes way more sens. Deployed OpenSource…
2023 · github.com
12
AIChat API
Affordable API - 50% cheaper than OpenAI, 0 migration cost
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Api2ai – create an API agent from any OpenAPI Spec▲23
api2ai parses OpenAPI Spec to generate an agent that can make API calls. For context, I recently need to explore a handful of API suites and thought LLMs can help expedite this process. After some digging, I found OpenAPI Specs are perfect fit for function calling. Based on a text prompt, api2ai can select the right endpoint and properly parse request params and make api calls. It also handles authentication, currently it supports basic auth, api keys, and bearer token schemes. The tool has helped me explore and see APIs in action without a deep dive into the docs or using postman. It’s open…
2023 · github.com
14
API Cup▲1
90+ AI models, single API, pay with crypto — 70% cheaper
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15
Hicap▲14
One API for every model. Faster, cheaper inference.
Feb 2026
16
Yesapi.online▲4
Low-cost AI API gateway for OpenAI-compatible developer tool
Jul 2026 · yesapi.online
17
CheapestInference▲2
Every open-source model. One flat rate.
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18
ReasoningDensity▲7
See where your AI API cost & tokens go — no API key needed
Jul 2026 · reasoningdensity.com
19
Tokenthon▲2
High-volume AI API. 4.5x cheaper than OpenAI
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20
Tokener Pro▲1
OpenAI-compatible API at 90% lower cost
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21
ApiHub: One API for Leading AI Models▲2
One API for leading AI models and video generation
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Open Responses – Self-hosted OpenAI Responses API, works with any model▲23
2025 · github.com
23
Mustham API▲3
Leading AI models at under half the direct API cost
Aug 2026 · api.mustham.com
24
API Hub▲4
OpenAI-compatible API for DeepSeek, Qwen & GLM
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