Building agents MCP servers

3,570 tagged Building agents, measured the same way as everything else here.

Browse within: model-context-protocol 216mcp-server 190LLM 128cli 100agents 79agentic-ai 77agent 45ai-tools 38agent-orchestration 35ai-governance 34a2a 32agent-memory 32Multi-Agent 31claude-code-plugin 28

bothire

1778

BotHireAgent/BotHireMCPServer

MCP server Claude CodeCodexCursor +2

Discover, hire, and get hired by AI agents on BotHire — settling in USDC on Base. Runs locally from the bothire-mcp npm package.

not rated 0 16d ago A tokens not measured original MIT

testgraph

1779

BBCBasic/TestGraph

MCP server Claude CodeCodexCursor +2

Shared semantic graph for AI reviews, classification and structured memory across AI assistants. Remote server at testgraph.21dle.co.uk.

not rated 0 13d ago A tokens not measured AGPL-3.0

agent-scan

1780

BackBond/agent-scan

MCP server Claude CodeCodexCursor +2

Local static screening for MCP and AI-agent tool metadata before attachment. Runs locally from the @backbond/agent-scan npm package.

not rated 0 2d ago A tokens not measured original MIT

agent-audit-logger-mcp

1781

CSOAI-ORG/agent-audit-logger-mcp

MCP server Claude CodeCodexCursor +2

Hash-chained HMAC-signed audit log MCP for A2A (agent-to-agent) calls. Every tool-call, agent-handoff, decision gets a tamper-evident signed record. EU AI Act Art 12 automatic logs, DORA Art 17 ICT incident logs, ISO 42001 clause 9 monitoring — auditor-ready end-of-day attestations. By MEOK AI Labs. Runs locally from…

not rated 0 2mo ago A tokens not measured original MIT

agent-delegation-mcp

1782

CSOAI-ORG/agent-delegation-mcp

MCP server Claude CodeCodexCursor +2

Agent Delegation MCP server. Tools: create task, delegate task, get task status. Built by MEOK AI Labs. Runs locally from the agent-delegation-mcp Python package.

not rated 0 9d ago A tokens not measured original MIT

CSOAI-ORG/agent-handoff-certified-mcp

MCP server Claude CodeCodexCursor +2

Verifiable agent-to-agent task handoff with signed provenance chain. Initiating agent signs the offer, accepting agent signs acceptance, chain is verifiable offline. Non-repudiable A2A delegation. Runs locally from the agent-handoff-certified-mcp Python package.

not rated 0 2mo ago A tokens not measured original MIT

CSOAI-ORG/agent-identity-trust-mcp

MCP server Claude CodeCodexCursor +2

Agent Identity Trust tools for AI agents. Capabilities: register agent identity, issue credential, verify credential. Built by MEOK AI Labs. Runs locally from the agent-identity-trust-mcp Python package.

not rated 0 9d ago A tokens not measured original MIT

agent-orchestrator-mcp

1785

CSOAI-ORG/agent-orchestrator-mcp

MCP server Claude CodeCodexCursor +2

MCP server for agent orchestrator. Features create agent, list agents, delegate task. From MEOK AI Labs. Runs locally from the agent-orchestrator-mcp Python package.

not rated 0 9d ago A tokens not measured original MIT

CSOAI-ORG/agent-prompt-injection-firewall-mcp

MCP server Claude CodeCodexCursor +2

The WAF for agents. Pattern-based + heuristic firewall scans prompts, RAG documents, tool arguments, A2A payloads for OWASP LLM01 prompt injection BEFORE they reach a downstream agent. Curated from OWASP + academia + production incidents. Runs locally from the agent-prompt-injection-firewall-mcp Python package.

not rated 0 10d ago A tokens not measured original MIT

CSOAI-ORG/agent-policy-enforcement-mcp

MCP server Claude CodeCodexCursor +2

Per-agent-pair IAM for A2A. Define policies ('orchestrator may call billing only when amount<1000'), gate every A2A call via evaluatecall. EU AI Act Art 14 + ISO 42001 Annex A.7 evidence with signed policy-decision attestations. Runs locally from the agent-policy-enforcement-mcp Python package.

not rated 0 2mo ago A tokens not measured original MIT

agent-token-budget-mcp

1788

CSOAI-ORG/agent-token-budget-mcp

MCP server Claude CodeCodexCursor +2

Agent Token Budget MCP — per-session spend cap with signed budget-exhausted attestations. Twin of bft-progress-council-mcp (spend-axis vs stall-axis guardrail). By MEOK AI Labs. Runs locally from the agent-token-budget-mcp Python package.

not rated 0 2mo ago A tokens not measured original MIT

evr

1789

evidence-readiness/spec

MCP server Claude CodeCodexCursor +2

Checks whether an agent trace contains the evidence a post-hoc causal reconstruction would require. Verifies evidence is PRESENT, not that it is true: a fabricated-but-internally-consistent trace passes. Runs locally from the evidence-readiness Python package.

not rated 0 1mo ago A tokens not measured original Apache-2.0

flashcard-ai-mcp

1790

CSOAI-ORG/flashcard-ai-mcp

MCP server Claude CodeCodexCursor +2

AI-powered flashcard ai MCP server for agents. Supports generate flashcards, quiz me, spaced repetition. By MEOK AI Labs. Runs locally from the flashcard-ai-mcp Python package.

not rated 0 9d ago A tokens not measured original MIT

CSOAI-ORG/csoai-agents-md-lint-mcp

MCP server Claude CodeCodexCursor +2

MEOK AGENTS.md Linter MCP — validates the cross-vendor coding-agent spec (Cursor / Claude Code / Cline / Windsurf / Aider / OpenAI Codex) stewarded by AAIF. Security smells + consistency lint + passing templates. By MEOK AI Labs. Runs locally from the meok-agents-md-lint-mcp Python package.

not rated 0 2mo ago A tokens not measured

meta-stamp-pockets

1793

Christebob/meta-stamp-pockets

MCP server Claude CodeCodexCursor +2

Attribution and settlement infrastructure for AI agent content access over HTTP 402 and MCP. Remote server at metastampv3-production.up.railway.app.

not rated 0 1mo ago A tokens not measured original MIT

uptocode

1794

DDYRich72/UpToCode

MCP server Claude CodeCodexCursor +2

Evidence-backed architecture-quality analysis for Python agent applications. Runs locally from the uptocode Python package.

not rated 0 15d ago A tokens not measured original MIT

mcp-surface-lint

1795

DLeibner/mcp-surface-lint

MCP server Claude CodeCodexCursor +2

Statically audits MCP tool surfaces for token cost, schema quality, and design issues. Remote server at mcplint-web.vercel.app.

not rated 0 10d ago A tokens not measured

vcp-mcp

1796

Creed-Space/vcp-sdk-python

MCP server Claude CodeCodexCursor +2

Value Context Protocol SDK — portable AI ethics validation. Runs locally from the vcp-sdk Python package.

not rated 0 11d ago A tokens not measured original Apache-2.0

deep-agentic-core-mcp

1797

DeepAgentLabs/mcp-server

MCP server Claude CodeCodexCursor +2

Unified MCP server for AgenticLens and Agentic Chaos workflows. Runs locally from the deep-agentic-core-mcp Python package.

not rated 0 2d ago A tokens not measured

slac-mcp

1798

DennisPrediger/SLAC-MCP

MCP server Claude CodeCodexCursor +2

MCP server exposing SLAC (Simple Logic & Arithmetic Compiler) as tools for LLM agents. Runs locally from the slac-mcp npm package.

not rated 0 1mo ago A tokens not measured original Apache-2.0

mcp-bifrost

1799

FixemBCN/MCP-Bifrost

MCP server Claude CodeCodexCursor +2

An MCP server that delegates mechanical code edits to a cheap worker model, validates them through a chain of gates, and applies them atomically. Runs locally from the mcp-bifrost Python package. Needs 4 environment variables to run.

not rated 0 15d ago A tokens not measured original Apache-2.0

once

1800

GSterlingPress/once-api

MCP server Claude CodeCodexCursor +2

Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts. Remote server at optimistic-compassion-production.up.railway.app.

not rated 0 4d ago A tokens not measured