100% Free & Open Source

Free AI Developer Tools

Production-ready MCP servers, developer utilities, and AI architecture resources. Built by engineers who ship 500+ Workers to production. No signup. No paywall.

9
MCP Servers
MIT
License
npm
Published
Smithery
Listed
View on GitHub
9 Production-Ready MCP Servers
Install via npm or connect through Smithery. Works with Claude, Cursor, Windsurf, and any MCP-compatible client.
F

Fortune MCP

Random wisdom, quotes, and fortune cookies. Ideal for testing MCP connections and adding personality to agents.

FreeMCPFun
J

JSON Toolkit

Parse, validate, transform, and query JSON. JQ-compatible filters for AI workflows. Schema validation built in.

FreeMCPUtility
C

Color Palette

Generate harmonious palettes, convert color formats, check WCAG accessibility contrast ratios for UI design.

FreeMCPDesign
M

MoltBook Publisher

Structure and format documentation from markdown. Multi-format export capabilities for technical writing.

FreeMCPDocs
A

AgentForge Compare

A/B test AI agent configurations side-by-side. Compare prompts, models, and tool setups with statistical rigor.

FreeMCPBenchmark
S

MCP Scanner

Audit and scan MCP server configurations for security issues, missing schemas, and permission gaps.

FreeMCPSecurity
R

Fortune REST API

Simple REST API for quotes and wisdom. JSON responses. No auth needed. Deploy on any edge runtime.

FreeAPIREST
K

Knowledge Graph

Temporal knowledge graph with entity extraction, relation mapping, and bi-temporal versioning for AI memory.

FreeMCPMemory
D

DID Identity

Decentralized identity resolution. Verify AI agent identities using W3C DID standard and verifiable credentials.

FreeMCPIdentity
AGI System Architecture
Seven interconnected AI brains forming an autonomous cognitive network.
Orchestrator
Claude Code (Architect) Opus 4.6 / 1M Context
Gateways
YEDAN (WSL2, 12 agents) rendan (VM2, 15 skills)
Hub
GOLEM Hub v4.0 Council Protocol A/B Testing
Edge Fleet
500+ CF Workers Workers AI Cron OODA D1 + KV
Governance
Constitution v3.1 OWASP Agentic HITL Gates Audit Trail
Layered architecture: Each layer communicates via MCP + A2A protocols
Technical Articles
Deep dives into AI agent architecture, MCP development, and production deployment.

x402 API Free Tier

Try our AI APIs with zero commitment. Pay-per-call pricing starts after free tier.
100
Free API Calls / Day
$0.01
Starting Price / Call
6
API Endpoints
View API Pricing

Everything on GitHub

Star the repo, open issues, submit PRs. All tools are MIT licensed. Contributions welcome from anyone building with MCP.

MCP Servers Repo All Repositories

Get the Full AGI Playbook

Everything we learned building a 7-brain AGI architecture from scratch. Architecture patterns, deployment playbooks, and production lessons.