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About

bolt.diy is an open-source platform that enables developers to easily create, run, edit, and deploy full-stack web applications with a variety of large language models (LLMs). It supports a wide range of models, including OpenAI, Anthropic, Ollama, OpenRouter, Gemini, LMStudio, Mistral, xAI, HuggingFace, DeepSeek, and Groq. The platform offers seamless integration through the Vercel AI SDK, allowing users to customize and extend their applications with the LLMs of their choice. With its intuitive interface, bolt.diy is designed to simplify AI development workflows, making it a great tool for both experimentation and production-ready applications.

About

Spanlens is an open-source (MIT) LLM observability platform that lets developers monitor every call their application makes to OpenAI, Anthropic, Gemini, Mistral, OpenRouter, Azure OpenAI, or a local Ollama model. Integration takes one line: swap your client's baseURL to the Spanlens proxy, or run "npx @spanlens/cli init" and the wizard rewrites your code automatically. From that moment, every request is recorded with its model, token counts, latency, cost, and full prompt and response body, with streaming responses reconstructed automatically. The dashboard turns that raw log into operational insight. Cost tracking breaks spend down per request, per model, and per end user, and parses prompt-cache tokens separately so you see real cache savings rather than sticker price. Agent tracing visualizes multi-step workflows as Gantt waterfalls and node-and-edge graphs, highlighting the critical path so you can find the slowest dependency chain in a fan-out.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Web developers and designers seeking an AI solution to develop and deploy full-stack web applications. Download bolt.diy here: sourceforge.net/projects/bolt-diy.mirror/

Audience

Open-source LLM observability: log cost, latency, tokens, and agent traces for every OpenAI

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

Free
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 4.0 / 5
support 4.0 / 5

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

bolt.diy
sourceforge.net/projects/bolt-diy.mirror/

Company Information

Spanlens
Founded: 2026
South Korea
spanlens.io

Alternatives

Bolt.new

Bolt.new

StackBlitz

Alternatives

Cody

Cody

Sourcegraph
Cline

Cline

Cline AI Coding Agent

Categories

Categories

Integrations

Bash
C#
DeepSeek
GPT-4o
Gemini
Gemini Enterprise
Gemini Nano
Grok
LM Studio
Ministral 3B
Ministral 8B
Mistral 7B
Mistral Large
Mistral Small
Mixtral 8x7B
OpenAI
PHP
Pixtral Large
Ruby
Rust

Integrations

Bash
C#
DeepSeek
GPT-4o
Gemini
Gemini Enterprise
Gemini Nano
Grok
LM Studio
Ministral 3B
Ministral 8B
Mistral 7B
Mistral Large
Mistral Small
Mixtral 8x7B
OpenAI
PHP
Pixtral Large
Ruby
Rust
Claim bolt.diy and update features and information
Claim bolt.diy and update features and information
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Claim Spanlens and update features and information