AI API Tools
The ai api tools we detect on new sites, ranked by how many use each. Part of AI & Emerging.
Source: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
- Tools tracked
- 201
- in AI & Emerging
- Sites
- 15,800
- using at least one ai api tool
- Above 1%
- 14
- tools on more than 1% of them
What we found
- Anthropic leads, on 26% of the sites using an ai api tool, with Abacus.AI close behind on 22%.
- Only 14 of the 201 ai api tools we track run on more than 1% of these sites.
- Among sites launched in September, Hugging Face rose to #6 from #8 in August.
The leading ai api tools
| # | Movement | Tool | Country | Share | Sites |
|---|---|---|---|---|---|
| 1 | ▼1 |
Anthropic
Anthropic Claude API: API access to Claude models, used by sites that integrate Claude for chat, content generation, and AI features.
|
26% | 4,073 | |
| 2 | – |
Abacus.AI
Enterprise AI platform offering hosted LLMs, autonomous agents, and an AI super-assistant for professionals.
|
22% | 3,405 | |
| 3 | ▲1 |
OpenAI API
Programmatic access to GPT, embeddings, image generation, and other OpenAI models.
|
20% | 3,179 | |
| 4 | – |
Google Gemini API
Google Generative Language API (Gemini).
|
10% | 1,608 | |
| 5 | – | One API Open-source LLM API proxy and aggregation platform (songquanpeng/one-api) | 5.7% | 898 | |
| 6 | ▼2 |
OpenRouter
Unified API proxy that routes LLM calls across OpenAI, Anthropic, Google, and other model providers.
|
4.3% | 686 | |
| 7 | – |
ElevenLabs
AI voice synthesis and audio generation platform
|
4.2% | 656 | |
| 8 | ▲2 |
Hugging Face
Hugging Face inference API / model hub.
|
4.0% | 638 | |
| 9 | – |
Groq
Hardware-accelerated LLM inference API offering very high tokens-per-second on open models.
|
3.3% | 521 | |
| 10 | ▼1 |
DeepSeek
Large language model API provider.
|
1.9% | 298 | |
| 11 | ▲1 |
fal.ai
API for fast inference of generative AI models, focused on image and video diffusion workloads.
|
1.8% | 288 | |
| 12 | – |
Vapi
Vapi voice AI platform for building voice assistants
|
1.4% | 228 | |
| 13 | ▲1 |
Deepgram
AI speech recognition and transcription API
|
1.2% | 185 | |
| 14 | ▼3 |
Replicate
Cloud platform for running and fine-tuning open-source AI models.
|
1.1% | 171 | |
| 15 | ▼5 |
xAI
Grok large language models, used via the xAI API and the Grok product.
|
1.0% | 153 |
Share is of the 15,800 sites using an ai api tool; a site can use more than one. Arrows compare each tool's rank among sites launched in September with August. The line is its share of new sites over 90 days. Showing the top 15 of 201.
The StackScope API serves every ai api tool and the launches using each, filterable and exportable, from £15 a month.
Recent launches using ai api tools
| Launch | Launched | Score |
|---|---|---|
| Chunkie | 19 Oct 2026 | 4.7 |
| Coveron | 19 Oct 2026 | 10 |
| Beam | 19 Oct 2026 | 9.7 |
| Kai Resolve by Gleap | 19 Oct 2026 | 7.1 |
| Free Claude Course: Cowork, Code & Agent | 19 Oct 2026 | 2.9 |
| Scopewise | 19 Oct 2026 | 10 |
Often built with
Other kinds of tool most often found on the same launches, leaving out the plumbing every site has (DNS, CDN, hosting).
- Analytics 1,814
- CSS Framework 1,588
- Framework 1,563
- Meta Framework 1,399
- Transactional Email 1,303
- UI Library 1,013