Silicon Friendly Review (2026): Pricing, Features & Honest Verdict
TLDR
Silicon Friendly is a free website auditor that scores how compatible your site is with AI agents. Silicon Friendly is one of the more useful free agent-readiness tools out there right now. Best for: indie devs, SaaS founders, and SEO teams who want to make sure their site is readable and actionable by AI agents in the next two years. Price: Free. Rating: 7.4/10.
What is Silicon Friendly?
Silicon Friendly is a free website auditor that scores how compatible your site is with AI agents. It runs 30 checks across 5 levels (L0 to L5), from basic readability to full autonomous agent operation. Think of it as Lighthouse but for the agent era.
The tool is aimed at site owners and developers preparing for an internet where AI agents read, navigate, and transact on behalf of users. Reports cover things like llms.txt presence, structured data, machine-readable endpoints, and agent-action support.
What Are Silicon Friendly’s Key Features?
5-level rating system
Sites are scored from L0 (hostile to agents) up to L5 (built for autonomous operation), with each level adding deeper agent capabilities like reading, finding, talking, doing, and living on the site.
30 automated checks
The audit runs 30 distinct checks across accessibility, discoverability, structured interaction, agent integration, and autonomy. Each one maps to a specific rubric item, not a generic SEO score.
Public directory of 1,500+ sites
Browse a searchable database of over 1,500 audited domains organized by their compatibility level, useful for agent builders looking for agent-ready platforms.
Machine-readable outputs
Provides /llms.txt and /.well-known/agent.json conventions and exposes its own MCP server, SKILL.md, and REST API so AI agents can consume the audit results directly.
Downloadable PDF report
After scanning, you can download a detailed PDF that lists every failing check with concrete fixes, designed to be handed straight to a coding agent like Claude Code or Cursor.
Silicon Friendly Pricing
Silicon Friendly is currently free to use, with no published paid tier. The audit, directory, MCP server, and PDF report are all open access.
Pros and Cons
Pros
- Genuinely free with no signup gate
- Concrete, fixable checks rather than vague scores
- PDF reports are designed to feed directly into coding agents
- Comes with its own MCP server and llms.txt endpoints
- Good public directory for benchmarking against peers
Cons
- No commercial tier means support is limited
- Methodology details for the 30 checks aren’t fully transparent
- L4 and L5 criteria are bleeding-edge and may shift as standards evolve
- Single-page audit scope rather than full-site crawls
- Limited integrations beyond the MCP server
| Plan | Price | Plan Features | Best For |
|---|---|---|---|
| Starting plan | Free | Core features; see pricing discussion above for details | Indie devs, SaaS founders, and SEO teams who want to make sure their site is readable and actionable by AI agents in the next two years. |
Who is Silicon Friendly Best For?
Use Silicon Friendly if: indie devs, SaaS founders, and SEO teams who want to make sure their site is readable and actionable by AI agents in the next two years.
Skip Silicon Friendly if: the use case doesn’t match your day-to-day workflow.
Best Silicon Friendly Alternatives
| Tool | What It Does | Price |
|---|---|---|
| llms.txt validators | Smaller open-source tools that just check the llms.txt convention without the full 5-level rubric. | Free |
| Schema.org validators | Google’s Rich Results Test and Schema.org’s validator cover structured data but not agent action support. | Free |
| Lighthouse / PageSpeed Insights | Covers traditional accessibility and performance but has no AI agent compatibility lens. | Free |
Final Verdict: Is Silicon Friendly Worth It?
Silicon Friendly is one of the more useful free agent-readiness tools out there right now. The 5-level rubric is opinionated in a good way, and the PDF reports paired with the MCP server fit naturally into modern agent workflows.
It’s not a replacement for a full SEO audit, but it does a job nothing else really does: telling you whether agents can actually use your site. For something free, that’s a decent value prop.
FAQ
Is Silicon Friendly really free?
Yes, the audit, directory, PDF reports, and MCP server are all free to use with no signup gate or paid tier as of early 2026.
What does an L5 score mean?
L5 means agents can essentially live on your site, performing complex multi-step actions autonomously. It’s the highest level and requires deep agent integration like authenticated APIs and webhooks.
Does it have an MCP server?
Yes, Silicon Friendly publishes its own MCP server at siliconfriendly.com/mcp, plus SKILL.md and a REST API, so agents can call it directly during audits.
Can I get a PDF report for my site?
Yes. After running the audit, you can download a detailed PDF that breaks down every failed check with fix suggestions, intended to be fed straight into a coding agent.
Who is this for?
Mostly SaaS founders, indie hackers, and SEO teams who care about how AI agents will interact with their site as agentic browsing grows.
Silicon Friendly Pros & Cons
What We Like
- Genuinely free with no signup gate
- Concrete, fixable checks rather than vague scores
- PDF reports are designed to feed directly into coding agents
- Comes with its own MCP server and llms.txt endpoints
- Good public directory for benchmarking against peers
What Could Be Better
- No commercial tier means support is limited
- Methodology details for the 30 checks aren't fully transparent
- L4 and L5 criteria are bleeding-edge and may shift as standards evolve
- Single-page audit scope rather than full-site crawls
- Limited integrations beyond the MCP server
Silicon Friendly FAQ
Is Silicon Friendly really free?
Yes, the audit, directory, PDF reports, and MCP server are all free to use with no signup gate or paid tier as of early 2026.
What does an L5 score mean?
L5 means agents can essentially live on your site, performing complex multi-step actions autonomously. It's the highest level and requires deep agent integration like authenticated APIs and webhooks.
Does it have an MCP server?
Yes, Silicon Friendly publishes its own MCP server at siliconfriendly.com/mcp, plus SKILL.md and a REST API, so agents can call it directly during audits.
Can I get a PDF report for my site?
Yes. After running the audit, you can download a detailed PDF that breaks down every failed check with fix suggestions, intended to be fed straight into a coding agent.
Who is this for?
Mostly SaaS founders, indie hackers, and SEO teams who care about how AI agents will interact with their site as agentic browsing grows.
How much does Silicon Friendly cost?
Silicon Friendly pricing starts at Free. A free plan is available.
