3,590 tagged Building agents, measured the same way as everything else here.
Browse within: model-context-protocol 215mcp-server 193LLM 129cli 104agents 80agentic-ai 76agent 43ai-tools 38agent-orchestration 37a2a 34ai-governance 34agent-memory 33Multi-Agent 30claude-code-plugin 29
cerberusgamelabs/cgl-interagentmail
MCP server Claude CodeCodexCursor +2
File-backed mail, MCP tools, push delivery, and authenticated browser messaging for Codex agents. Runs locally from the cgl-interagentmail Python package.
prasad-a-abhishek/contextlens-mcp
MCP server Claude CodeCodexCursor +2
Zero-dependency context-window estimation, truncation, and budgeting for MCP and LLM tools. Runs locally from the contextlens-mcp Python package.
MCP server Claude CodeCodexCursor +2
A local communication bus for the coding agents on your machine — Claude Code, Codex, and Cursor discover each other's sessions, ask each other questions, and hand work across vendor lines. One MCP server, zero daemons. Runs locally from the @rjava/agent-bus npm package.
MCP server Claude CodeCodexCursor +2
MCP server "boardroom-agents" as configured in edgemoorlf/boardroom-agents. Runs locally from the boardroom-agents Python package.
MCP server Claude CodeCodexCursor +2
MCP server for Monnet — motions, plans, files, approvals, and the team's company brain. Runs locally from the @monnet/mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
30 pay-per-call APIs for AI agents: compliance, trade, safety, web, data. USDC on Base via x402. Remote server at toolcall.click.
MCP server Claude CodeCodexCursor +2
One message in, a full agentic application out: website and MCP app, live. Built from any AI client. Remote server at mcp.branderux.com.
clauxel/a2a-replay-receipt-mcp
MCP server Claude CodeCodexCursor +2
Remote MCP for A2A failure replay MCP, structured receipts, audit logs, and reviewer-ready evidence. Remote server at a2areplayreceipt.clauxel.com.
MCP server Claude CodeCodexCursor +2
A paid remote MCP for Pydantic AI structured output, built to return verdicts, receipts, usage logs. Remote server at pydanticcontract.clauxel.com.
clauxel/mcp-gateway-registry-desk-mcp
MCP server Claude CodeCodexCursor +2
A paid remote MCP for AI SDK MCP gateway registry, built to return verdicts, receipts, usage logs, a. Remote server at mcpgatewaydesk.clauxel.com.
MCP server Claude CodeCodexCursor +2
Search 41,000+ agent skills, MCP servers, plugins & loops — real install counts and stars. Remote server at getagentictools.com.
MCP server Claude CodeCodexCursor +2
Your team's shared, verified knowledge for AI agents: ask what's true, record what you learn. Remote server at mcp.getfirmament.com.
MCP server Claude CodeCodexCursor +2
Procure governed AI capabilities: machine-readable price, scope, trust, gateway-delegation terms. Remote server at mcp.gatecoreai.com.
MCP server Claude CodeCodexCursor +2
The evidence layer for MCP: live operational grades plus Trust Receipts for every registry server. Remote server at mcpqueen.com.
MCP server Claude CodeCodexCursor +2
Free dual MCP+agent registry. Probe Live, free demo, Kernel/Loop. Self-list + dual strategy. Remote server at www.dualregistry.dev.
MCP server Claude CodeCodexCursor +2
Tamper-proof audit trail for AI agents. Signed receipts, offline-verifiable, zero backend. Runs locally from the actionproof npm package.
CSOAI-ORG/agent-negotiation-mcp
MCP server Claude CodeCodexCursor +2
AI-powered agent negotiation MCP server for agents. Supports propose deal, evaluate offer, counter offer. By MEOK AI Labs. Runs locally from the agent-negotiation-mcp Python package.
CSOAI-ORG/csoai-mcp-cardgen-mcp
MCP server Claude CodeCodexCursor +2
MEOK MCP Cardgen — generate signed .well-known MCP server cards (SEP-1649 + SEP-1960 + SEP-2127). Claude Desktop 2.1 + Cursor 2026.4 auto-discover servers via these. By MEOK AI Labs. Runs locally from the meok-mcp-cardgen-mcp Python package.
ChiragBachani/context-autopilot
MCP server Claude CodeCodexCursor +2
Mines your Claude Code and Cursor sessions into evidence-based CLAUDE.md / AGENTS.md rules. Runs locally from the context-autopilot npm package.
Creed-Space/creedspace-mcp-server
MCP server Claude CodeCodexCursor +2
Constitutional-AI safety guardrails for any LLM — personas, constitutions, adjudication. Runs locally from the @creedspace/mcp-server npm package.
TheStevenJohnstone/ai-consensus-connector
MCP server Claude CodeCodexCursor +2
Standing review layer for coding agents: Claude, GPT and Gemini debate, return consensus + dissent. Runs locally from the ai-consensus-connector npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
MCP server "joomil", hosted remotely at joomil-mcp.snowy-surf-deec.workers.dev, as configured in Valmo-Sarl/joomil-mcp.
Trushtonfactory/anthropic-admin-mcp
MCP server Claude CodeCodexCursor +2
One of 3 in claude_desktop_config.json
MCP server "anthropic-admin-sandbox-only" as configured in Trushtonfactory/anthropic-admin-mcp. Launched with anthropic-admin-mcp. Needs 3 environment variables to run.
ai-supply-store/ai-supply-plugin
MCP server Claude CodeCodexCursor +2
Search, install, publish & review security-scanned AI capabilities from ai-supply.store. Runs locally from the ai-supply-mcp npm package. Needs 2 environment variables to run.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: