io.github.rotifer-protocol/mcp-server
Search, compare, and install self-evolving AI Agent Genes ranked by Arena fitness
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@rotifer/mcp-server
Build, compose, and run AI agents β directly from your IDE.
Search genes, create agents with composable genomes, run pipelines in a WASM sandbox, and compete in the Arena. Zero config. Works with Cursor, Claude Desktop, Windsurf, and any MCP-compatible client.
Quick Start
Cursor
Add to .cursor/mcp.json:
{
"mcpServers": {
"rotifer": {
"command": "npx",
"args": ["@rotifer/mcp-server"]
}
}
}
Claude Desktop
Add to claude_desktop_config.json:
{
"mcpServers": {
"rotifer": {
"command": "npx",
"args": ["@rotifer/mcp-server"]
}
}
}
Windsurf / Other MCP Clients
Use the same npx command β any client that supports MCP stdio transport will work.
What Can It Do?
Create and run an agent in one conversation
You: "Build me an agent for code security scanning"
AI: β create_agent({ agent_name: "sec-bot", gene_ids: ["security-scanner", "genesis-code-format"],
composition: "Seq" })
Agent 'sec-bot' created with 2-gene Seq genome.
You: "Run it on my project"
AI: β agent_run({ agent_name: "sec-bot", input: "{\"path\":\"./src\"}" })
Pipeline complete β 3 findings, 0 critical.
Search, compare, and compose genes
You: "Find the best gene for web search"
AI: β search_genes({ query: "web search" })
Found 8 genes. Top match: genesis-web-search (F(g) = 0.87, Native)
You: "Compare it against the lite version"
AI: β compare_genes({ gene_ids: ["...", "..."] })
Side-by-side: success rate, latency, fitness breakdown
Full gene lifecycle from your IDE
You: "Wrap my function as a gene"
AI: β wrap_gene({ gene_name: "my-search", domain: "search.web", fidelity: "Wrapped" })
β compile_gene({ gene_name: "my-search" })
β test_gene({ gene_name: "my-search", compliance: true })
β publish_gene({ gene_name: "my-search", changelog: "Initial release" })
Tools (29)
Discovery & Analytics
| Tool | Description | Key Parameters |
|---|---|---|
search_genes | Search the Gene ecosystem by name, domain, or description | query, domain, fidelity, sort (relevance/newest/popular/fitness), page, per_page |
get_gene_detail | Get detailed info about a Gene (phenotype, fitness, metadata) | gene_id, content_hash (either identifies the gene) |
get_arena_rankings | Arena rankings for a domain, sorted by F(g) fitness | domain, page, per_page |
compare_genes | Side-by-side fitness comparison of 2β5 Genes | gene_ids (array) |
get_gene_stats | Download statistics (total, 7d, 30d, 90d) | gene_id |
get_leaderboard | Creator reputation leaderboard | limit |
get_developer_profile | Creator public profile and reputation | username |
get_gene_reputation | Detailed reputation breakdown (Arena, Usage, Stability) | gene_id |
list_gene_versions | Version history chain with changelogs | owner, gene_name |
suggest_domain | Suggest matching domains from the registry | description |
Local Workspace
| Tool | Description | Key Parameters |
|---|---|---|
list_local_genes | Scan local workspace for installed Genes | project_root, domain, fidelity |
list_local_agents | List Agents in the local workspace | project_root, state |
Gene Lifecycle
| Tool | Description | Key Parameters |
|---|---|---|
init_gene | Initialize a new Gene project with starter files | gene_name, fidelity, domain, no_genesis |
scan_genes | Scan for candidate functions or SKILL.md files | path, skills, skills_path |
wrap_gene | Wrap a function/skill as a Gene | gene_name, domain, fidelity, from_skill, from_clawhub |
test_gene | Test a Gene (schema validation + sandbox) | gene_name, verbose, compliance |
compile_gene | Compile a Gene to WASM IR | gene_name, check, wasm_path, lang |
run_gene | Execute a local Gene | gene_name, input, verbose, no_sandbox, trust_unsigned |
publish_gene | Publish to Rotifer Cloud | gene_name, all, description, changelog, skip_arena, skip_security |
install_gene | Install a Gene from Cloud Registry | gene_id, project_root, force |
vg_scan | V(g) security scan β static analysis for Gene/Skill code safety | path, gene_id, all, project_root |
arena_submit | Submit to Arena with 5D fitness scores | gene_id, fitness_value, safety_score, success_rate, latency_score, resource_efficiency |
Agent Composition
| Tool | Description | Key Parameters |
|---|---|---|
create_agent | Create an Agent composing multiple Genes | agent_name, gene_ids, composition (Seq/Par/Cond/Try/TryPool), domain, top, strategy, par_merge |
agent_run | Run a local Agent by name | agent_name, input, verbose, no_sandbox |
Authentication & Analytics
| Tool | Description | Key Parameters |
|---|---|---|
auth_status | Check login status | β |
login | OAuth login (GitHub/GitLab) | provider, endpoint |
logout | Clear credentials | β |
get_mcp_stats | MCP call analytics | days |
get_my_reputation | Current user's reputation | β |
Resources (7)
MCP Resources let AI clients reference Rotifer data as context:
| URI Template | Description |
|---|---|
rotifer://genes/{gene_id}/stats | Gene download statistics |
rotifer://genes/{gene_id} | Gene detail + phenotype |
rotifer://developers/{username} | Creator profile + reputation |
rotifer://leaderboard | Top creators by reputation score |
rotifer://local/genes | Local Gene inventory |
rotifer://local/agents | Local Agent registry |
rotifer://version | MCP Server version and update availability |
Prompts (4)
MCP Prompts give AI clients guided workflows for common tasks:
| Prompt | Description | Key Arguments |
|---|---|---|
rotifer-hello | Interactive agent creation β pick a template and run immediately | template, input |
rotifer-guide | Understand Rotifer Protocol β genes, agents, Arena, fidelity model | β |
rotifer-architect | Design an Agent β task-driven gene search + composition planning | task |
rotifer-challenge | Arena evaluation β submit a gene, compare with competitors | gene |
Try asking your AI: "Use the rotifer-hello prompt to build me an agent" or "Use rotifer-architect to design an agent for document Q&A".
Architecture
βββββββββββββββββββββββββββββββββββββββββββββββββββ
β AI IDE (Cursor / Claude / Windsurf) β
β β
β "Find genes for code formatting" β
β β β
β βΌ β
β βββββββββββββββββββββββ β
β β MCP Client β β
β β (stdio transport) β β
β ββββββββββ¬βββββββββββββ β
βββββββββββββΌββββββββββββββββββββββββββββββββββββββ
β MCP Protocol
βΌ
βββββββββββββββββββββββββββββββββββββββββββββββββββ
β @rotifer/mcp-server β
β β
β 29 Tools 7 Resources 4 Prompts Local Scannerβ
β ββββββββββββ βββββββββββββ ββββββββββββββ β
β β discover β βrotifer:// β β ./genes/ β β
β β lifecycleβ βgenes/statsβ β phenotype β β
β β agents β βdevelopers β β agents β β
β β auth β βleaderboardβ ββββββββββββββ β
β ββββββ¬ββββββ βββββββ¬ββββββ β β
βββββββββΌβββββββββββββββΌβββββββββββββββββΌββββββββββ
β β β
βΌ βΌ βΌ
βββββββββββββββββββββββββββββββββββββββββββββββββββ
β Rotifer Cloud API Local File System β
β (Supabase) (genes/, .rotifer/) β
βββββββββββββββββββββββββββββββββββββββββββββββββββ
Configuration
Zero-config by default β connects to the public Rotifer Cloud API.
To use a custom endpoint, create ~/.rotifer/cloud.json:
{
"endpoint": "https://your-supabase-instance.supabase.co",
"anonKey": "your-anon-key"
}
Or set environment variables:
ROTIFER_CLOUD_ENDPOINT=https://your-instance.supabase.co
ROTIFER_CLOUD_ANON_KEY=your-anon-key
Requirements
- Node.js >= 20
Pair with the CLI
This MCP server works best alongside the Rotifer CLI. The CLI provides the local runtime (WASM sandbox, Arena engine, IR compiler) while the MCP server exposes it all to your AI assistant:
npm install -g @rotifer/playground
rotifer init my-project && cd my-project
rotifer hello # your first agent in 30 seconds
Links
- Rotifer Protocol β Main site
- MCP Setup Guide β Step-by-step setup
- Gene Marketplace β Browse and discover Genes
- CLI Playground β Build and test Genes locally
- Protocol Specification β Formal spec
License
Apache-2.0
