3,569 tagged Building agents, measured the same way as everything else here.
Browse within: model-context-protocol 215mcp-server 190LLM 129cli 100agents 80agentic-ai 76agent 43ai-tools 38agent-orchestration 35ai-governance 35Multi-Agent 32a2a 32agent-memory 32claude-code-plugin 29
MCP server Claude CodeCodexCursor +2
Cryptographically verifiable receipts of an agent's delegated work, verified offline. Runs locally from the @sequesign/mcp npm package. Needs 6 environment variables to run.
MCP server Claude CodeCodexCursor +2
Hosted MCP for source-backed project context, memory, code impact, and agent workflow continuity. Remote server at api.snipara.com.
SynapseNetworkAI/Synapse-Network-MCP-Server
MCP server Claude CodeCodexCursor +2
Synapse Network MCP paid API calls via discoverservices; not Synapse.org/Sage Bionetworks Synapse. Runs locally from the @synapse-network-ai/mcp-server npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
Subagent MCP gateway for Codex to orchestrate external coding agents through native harnesses. Runs locally from the subagent-harness-mcp Python package.
MCP server Claude CodeCodexCursor +2
Agent Economic Sovereignty Protocol — defining how AI agents operate economically under human sovereignty. Runs locally from the @yault/aesp npm package. Needs 2 environment variables to run.
This-Is-Hellgate/second-eyes-ai
MCP server Claude CodeCodexCursor +2
Workflow diagnostics, capability routing, and x402 settlement for MCP-compatible agents. Runs locally from the @secondeyes/mcp-unblock npm package. Needs 5 environment variables to run.
This-Is-Hellgate/secondeye-mcp
MCP server Claude CodeCodexCursor +2
Agent workflow diagnostics and capability routing over MCP with x402 settlement on Base. Runs locally from the @secondeyes/mcp-unblock npm package. Needs 1 environment variable to run.
Toby-Self/Asymptotic-Ethics-Model
MCP server Claude CodeCodexCursor +2
MCP server exposing an Asymptotic Ethics commons-governance simulation as callable tools, plus a stateless governance compliance oracle verified against the simulation's own logic. Runs locally from the asymptotic-ethics-mcp Python package.
MCP server Claude CodeCodexCursor +2
MCP server "inforcer-mcp" as configured in WYRE-AI/inforcer-mcp. Runs in Docker (ghcr.io/wyre-ai/inforcer-mcp:v1.1.2). Needs 5 environment variables to run.
MCP server Claude CodeCodexCursor +2
An MCP capability router: one search tool instead of every server's tool schema. Runs locally from the autorouter-mcp npm package. Needs 4 environment variables to run.
MCP server Claude CodeCodexCursor +2
Signed, hash-chained provenance receipts for AI agent actions. Runs locally from the @proof-layer/mcp npm package. Needs 3 environment variables to run.
XianDAO-Labs/huangting-flux-hub
MCP server Claude CodeCodexCursor +2
Reduces AI Agent token usage by 40% via three-stage SOP workflow. Remote server at mcp.huangting.ai.
ZahiriNatZuke/whisper-transcribe-mcp
MCP server Claude CodeCodexCursor +2
MCP server for audio transcription via faster-whisper (local) or OpenAI Whisper API. Runs locally from the whisper-transcribe-mcp Python package. Needs 2 environment variables to run.
ZentricProtocol/zentricprotocol
MCP server Claude CodeCodexCursor +2
Prompt injection + PII detection for LLM apps and agent pipelines. Deterministic, sub-25ms. Runs locally from the zentric-protocol-mcp npm package.
MCP server Claude CodeCodexCursor +2
Search verified agents and production agent-first AbsoluteJS packages. Runs locally from the @absolutejs/agents-mcp npm package. Needs 2 environment variables to run.
MCP server Claude CodeCodexCursor +2
quickstart for mcp deployment. Runs locally from the @achsaf/quickstart-test npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Real-time physical perception for AI agents — vision, spatial, acoustic, environmental. Runs locally from the @afferens/mcp-server npm package.
agenson-tools/agent-output-guard-mcp
MCP server Claude CodeCodexCursor +2
Validate and verify data from other agents before acting on it. Zero LLM costs. Runs locally from the @agenson-horrowitz/agent-output-guard-mcp npm package.
agent-blueprint/free-blueprints
MCP server Claude CodeCodexCursor +2
Free AI agent blueprints for procurement and onboarding. No signup, no API key. Runs locally from the @agent-blueprint/free-blueprints npm package.
agent-resolve/agent-resolve-mcp
MCP server Claude CodeCodexCursor +2
Escrow, verification, and settlement platform for AI agents hiring other AI agents. Remote server at agent-resolve-mcp.onrender.com.
MCP server Claude CodeCodexCursor +2
Skills and Scars for AI agents - your agent records its failures and never repeats them. Runs locally from the kira-mcp npm package. Needs 4 environment variables to run.
alanzha2/observe-instrument-mcp
MCP server Claude CodeCodexCursor +2
MCP server that instruments Python AI agents with the ioa-observe-sdk. Runs locally from the observe-instrument-mcp Python package. Needs 5 environment variables to run.
MCP server Claude CodeCodexCursor +2
Search and invoke real AI capabilities on modelmarket.dev. Free trial, then USDC on Base. Remote server at modelmarket.dev.
MCP server Claude CodeCodexCursor +2
Continuity protocol for autonomous AI agents. Agent messaging with SMTP bridge and LN payments. Remote server at getcourier.dev.