Code Arena records 35,827,928 monthly visits with +19.4% month-over-month growth and Free pricing. mcp.so records 286,704 monthly visits with -3% growth and Free pricing.
Battle-test AI coding models side by side
Discover and share Model Context Protocol servers for AI agents and coding tools
| Dimension / Metric | | |
|---|---|---|
| Official Domain | arena.ai | mcp.so |
| Pricing Model | Free | Free |
| Monthly Visits | 35.83M (35,827,928) | 286.7K (286,704) |
| MoM Traffic Delta | +5.83M (+19.4%) | -8.96K (-3%) |
| Primary Market & Share | 🇮🇳 India (13.1%) | 🇺🇸 United States (11.5%) |
| Direct Visits / mo | 24.34M | 107.65K |
| User Rating | 4.7 | 4.2 |
| Supported Platforms | Website | Website |
Battle-test AI coding models side by side
Send the same coding prompt to multiple leading models and compare their generated apps and logic side by side.
Watch models construct web apps and websites live, so you can see process and output, not just the final file.
Projects go beyond one-off snippets, testing how well a model structures components, routes, and styles together.
Track which coding models accumulate the most wins over time to identify consistently strong performers.
Discover and share Model Context Protocol servers for AI agents and coding tools
Find servers by name, category, tag, runtime or integration, with featured, trending and newest sections that track community activity.
Review hosted MCP endpoints, authentication requirements and per-client setup instructions before you connect anything.
Discover MCP-compatible clients, official command-line tools, agent loops and reusable Claude/Codex skills in dedicated sections.
Maintainers can publish new servers and claim existing listings so entries stay accurate and attributable.
Crowdsourced arena where AI models compete and humans crown the best design output
Crowdsourced arena where AI models compete and humans crown the best design output
SpecialistCurated directory and search engine cataloging thousands of general AI products rather than MCP developer integrations.
SpecialistCurated directory and search engine cataloging thousands of general AI products rather than MCP developer integrations.
Agent Skills that give your coding agent real design taste
Agent Skills that give your coding agent real design taste
SpecialistMassive general AI tools directory, offering broader software discovery but less focus on specific MCP servers.
SpecialistMassive general AI tools directory, offering broader software discovery but less focus on specific MCP servers.
Free / Open-sourceIndependent public directory indexing open-source agent skill files and MCP integrations for AI developers.
Free / Open-sourceIndependent public directory indexing open-source agent skill files and MCP integrations for AI developers.
Free AI hackathons and a global community for AI builders
Free AI hackathons and a global community for AI builders
SpecialistDeveloper-focused AI tools directory and pricing tracker, though less dedicated to community-contributed MCP server lists.
SpecialistDeveloper-focused AI tools directory and pricing tracker, though less dedicated to community-contributed MCP server lists.
SpecialistMarketplace connecting users with ready-made AI agents and starter kits, but with fewer raw developer MCP tools.
SpecialistMarketplace connecting users with ready-made AI agents and starter kits, but with fewer raw developer MCP tools.
Community hub focused specifically on discovering and installing MCP servers and plugins for the Cursor IDE.
Community hub focused specifically on discovering and installing MCP servers and plugins for the Cursor IDE.
SpecialistA hand-curated directory for discovering AI tools and resources
SpecialistA hand-curated directory for discovering AI tools and resources
SpecialistCurated online directory cataloging productivity and AI software, lacking specialized categorization for MCP protocol servers.
SpecialistCurated online directory cataloging productivity and AI software, lacking specialized categorization for MCP protocol servers.
Benchmark computer- and phone-use AI agents with blind head-to-head battles
Benchmark computer- and phone-use AI agents with blind head-to-head battles
