OpenClaw MCP Ecosystem
9 remote MCP servers on Cloudflare Workers for AI agents. Free tier + Pro API keys.
What is OpenClaw?
OpenClaw is a collection of 9 ready-to-use AI tool servers that you can connect to any AI assistant that supports the Model Context Protocol (MCP).
- No installation required. Each server runs on Cloudflare's global edge network. You just paste a URL into your AI tool's settings.
- Free to start. Every server has a free tier. No credit card, no API key, no account needed.
- 49 practical tools for everyday tasks: formatting JSON, building regex patterns, generating color palettes, converting timestamps, enhancing prompts, and more.
Think of it like adding superpowers to your AI assistant — just connect and start asking.
Why OpenClaw?
| OpenClaw | Typical MCP Servers | |
|---|---|---|
| Setup | Paste a URL (30 seconds) | Install packages, configure, restart |
| Hosting | Cloudflare edge (300+ locations) | Self-host or Docker |
| Uptime | Global CDN with automatic failover | Depends on your infrastructure |
| Latency | <100ms (edge compute) | 200-500ms (centralized) |
| Free tier | Yes, no account needed | Most require API keys |
| Pro upgrade | $29/mo for all 9 servers | Per-server pricing |
Who Is This For?
- AI beginners who want useful tools without technical setup
- Developers who need JSON, regex, color, and timestamp utilities inside their AI workflow
- Content creators who want prompt optimization, SEO analysis, and multilingual publishing tools
- Teams looking for a managed, reliable MCP server set with predictable pricing
No coding experience is required for basic usage.
What Can You Do With It?
Here are real examples — just say these to your AI assistant after connecting:
| Use Case | Example Prompt |
|---|---|
| Format messy JSON | "Format this JSON and show me any errors" |
| Build a regex pattern | "Create a regex that matches email addresses" |
| Check color accessibility | "Check if white text on this blue background meets WCAG AA" |
| Convert time zones | "What time is 3pm Tokyo in New York and London?" |
| Improve a prompt | "Score this prompt and suggest improvements" |
Available MCP Servers
Install in Cursor (One Click)
| Server | Install | Tools | Free/day |
|---|---|---|---|
| JSON Toolkit |  | 6 | 20 |
| Regex Engine | | 5 | 20 |
| Color Palette | | 5 | 25 |
| Timestamp Converter | | 5 | 30 |
| Prompt Enhancer | | 6 | 10 |
| Market Intelligence | | 6 | 10 |
| Fortune & Tarot | | 3 | 50 |
| Content Publisher | | 8 | 5 |
| AI Tool Compare | | 5 | 10 |
All 49 Tools
<details> <summary><strong>JSON Toolkit</strong> — 6 tools</summary>https://json-toolkit-mcp.yagami8095.workers.dev/mcp
| Tool | What it does |
|---|---|
json_format | Pretty-print or minify JSON |
json_validate | Validate JSON with line/column errors |
json_diff | Compare two JSON values (added/removed/changed) |
json_query | JSONPath query (dot notation, wildcards, filters) |
json_transform | Flatten, unflatten, pick, omit, rename keys |
json_schema_generate | Generate JSON Schema from sample data |
https://regex-engine-mcp.yagami8095.workers.dev/mcp
| Tool | What it does |
|---|---|
regex_test | Test pattern, get matches + positions + groups |
regex_explain | Token-by-token plain English explanation |
regex_build | Build regex from natural language (25+ patterns) |
regex_replace | Find-replace with backreferences |
regex_extract | Extract all matches with named groups |
https://color-palette-mcp.yagami8095.workers.dev/mcp
| Tool | What it does |
|---|---|
generate_palette | Harmonious palette (complementary, triadic, etc.) |
contrast_check | WCAG 2.1 AA/AAA compliance |
color_convert | Hex/RGB/HSL/CSS named (140 colors) |
css_gradient | Linear/radial/conic gradient CSS |
tailwind_colors | Tailwind v3 lookup + nearest match |
https://timestamp-converter-mcp.yagami8095.workers.dev/mcp
| Tool | What it does |
|---|---|
convert_timestamp | Unix/ISO/human/relative auto-detect |
timezone_convert | Between timezones (7 zones at once) |
parse_cron | Cron expression → human description + next 5 runs |
time_diff | Difference in seconds/minutes/hours/days |
format_duration | Seconds ↔ human string ↔ ISO 8601 |
https://prompt-enhancer-mcp.yagami8095.workers.dev/mcp
| Tool | What it does | Tier |
|---|---|---|
enhance_prompt | Optimize prompt structure + clarity | Free |
analyze_prompt | Quality score + issues + suggestions | Free |
convert_prompt_format | Plain/XML/Markdown/JSON conversion | Free |
generate_system_prompt | System prompt for any role/task | Free |
prompt_template_library | 30+ production templates | Pro |
purchase_pro_key | Unlock Pro features | — |
https://openclaw-intel-mcp.yagami8095.workers.dev/mcp
| Tool | What it does | Tier |
|---|---|---|
get_ai_market_report | AI agent market report + trends | Free |
get_report_by_id | Specific report deep-dive | Pro |
list_reports | Browse all available reports | Free |
get_market_stats | Real-time ecosystem stats | Free |
purchase_api_key | Get Pro key for full access | — |
validate_api_key | Check key validity + quota | Free |
https://openclaw-fortune-mcp.yagami8095.workers.dev/mcp
| Tool | What it does |
|---|---|
get_daily_fortune | Daily horoscope + tarot reading |
get_fortune_ranking | Today's zodiac ranking (1st–12th) |
get_all_fortunes | All 12 signs at once |
https://moltbook-publisher-mcp.yagami8095.workers.dev/mcp
| Tool | What it does | Tier |
|---|---|---|
convert_markdown_to_html | MD → HTML for note.com/Zenn/Qiita | Free |
optimize_for_seo | SEO analysis for Japanese content | Free |
translate_en_to_jp | Natural English → Japanese | Free |
generate_article_outline | Structured outline from topic | Free |
get_trending_topics | Trending on note.com/Zenn/Qiita | Pro |
cross_post_format | Format for all 3 platforms | Pro |
analyze_article_performance | Predict performance before publish | Pro |
purchase_pro_key | Unlock Pro features ($29/mo) | — |
https://agentforge-compare-mcp.yagami8095.workers.dev/mcp
| Tool | What it does | Tier |
|---|---|---|
compare_ai_tools | Side-by-side AI tool comparison | Free |
get_tool_profile | Detailed tool profile + pricing | Free |
recommend_tool | AI recommendation for your needs | Pro |
get_pricing_comparison | Full pricing table | Free |
purchase_pro_key | Unlock AI recommendations | — |
Quick Start
Option A: Cursor (One Click)
Click any Install button in the server table above. Done.
Option B: Claude Desktop
Add this to your claude_desktop_config.json:
{
"mcpServers": {
"openclaw-json": { "type": "streamable-http", "url": "https://json-toolkit-mcp.yagami8095.workers.dev/mcp" },
"openclaw-regex": { "type": "streamable-http", "url": "https://regex-engine-mcp.yagami8095.workers.dev/mcp" },
"openclaw-colors": { "type": "streamable-http", "url": "https://color-palette-mcp.yagami8095.workers.dev/mcp" },
"openclaw-timestamp": { "type": "streamable-http", "url": "https://timestamp-converter-mcp.yagami8095.workers.dev/mcp" },
"openclaw-prompt": { "type": "streamable-http", "url": "https://prompt-enhancer-mcp.yagami8095.workers.dev/mcp" },
"openclaw-intel": { "type": "streamable-http", "url": "https://openclaw-intel-mcp.yagami8095.workers.dev/mcp" },
"openclaw-fortune": { "type": "streamable-http", "url": "https://openclaw-fortune-mcp.yagami8095.workers.dev/mcp" },
"openclaw-moltbook": { "type": "streamable-http", "url": "https://moltbook-publisher-mcp.yagami8095.workers.dev/mcp" },
"openclaw-agentforge": { "type": "streamable-http", "url": "https://agentforge-compare-mcp.yagami8095.workers.dev/mcp" }
}
}Option C: Any MCP Client
Use Streamable HTTP transport with any server URL from the table above. Compatible with Claude Code, Windsurf, Cline, and any MCP-compatible client.
| Client | Config location |
|---|---|
| Claude Code | ~/.claude.json or .mcp.json |
| Cursor | .cursor/mcp.json |
| Windsurf | .windsurf/mcp.json |
| Cline | VS Code MCP settings |
Product Store
Browse all available digital products, guides, and API access:
product-store.yagami8095.workers.dev
Includes prompt collections, automation guides, starter kits, and Pro API keys.
Pricing / Access
<table> <tr><th>Tier</th><th>Cost</th><th>What you get</th></tr> <tr><td><strong>Free</strong></td><td>$0</td><td>1,000 calls/month across 3 servers — no account needed</td></tr> <tr><td><strong>Pro</strong></td><td><strong>$29/mo</strong></td><td>50,000 calls/month across ALL 9 servers + Pro-only tools</td></tr> <tr><td><strong>Enterprise</strong></td><td><strong>$99/mo</strong></td><td>500,000 calls/month + priority routing + 24h support</td></tr> <tr><td><strong>Credit Pack</strong></td><td>$29 one-time</td><td>5,000 credits (never expire)</td></tr> </table>Get a Pro Key
| Method | Link |
|---|---|
| Product Store | product-store.yagami8095.workers.dev |
| PayPal | paypal.me/Yagami8095/29 |
After payment, your Pro API key is generated instantly. Questions? Email yagami8095@gmail.com.
Language Support
This project is available in three languages:
- English — You are here
- 繁體中文 (Traditional Chinese) — 完整繁體中文版本
- 日本語 (Japanese) — 日本語の完全版
FAQ
Q: Do I need to install anything? A: No. OpenClaw servers run in the cloud. You only need to paste a URL into your AI tool's settings.
Q: Do I need an account or API key to start? A: No. The free tier works without any account. Just connect and use.
Q: What is MCP? A: MCP (Model Context Protocol) is an open standard that lets AI assistants use external tools. Think of it like USB for AI — a universal way to plug in new capabilities.
Q: Which AI tools work with OpenClaw? A: Any tool that supports MCP, including Cursor, Claude Desktop, Claude Code, Windsurf, and Cline.
Q: What happens when I hit the free limit? A: The server returns a rate-limit message. You can wait for the limit to reset, or upgrade to Pro for higher limits.
Troubleshooting
"Connection refused" or "Server not found"
- Make sure you are using the full URL ending in
/mcp(e.g.,https://json-toolkit-mcp.yagami8095.workers.dev/mcp) - Check that your AI tool supports Streamable HTTP transport
"Rate limit exceeded"
- Free tier has daily limits per server (see the table above)
- Wait for the daily reset, or upgrade to Pro
Tools not appearing after setup
- Restart your AI tool after adding the server config
- Confirm the JSON config has no syntax errors
Documentation
- Architecture — How OpenClaw is built
- Contributing — How to add tools or improve servers
- Security — Security policy and reporting
- Demo — Extended usage examples
Support OpenClaw
Your support helps keep these servers running and free for everyone.
Trust & Transparency
- Open source — MIT license, full source code in this repo
- No lock-in — Standard MCP protocol, switch anytime
- Edge-hosted — Cloudflare Workers with 300+ global locations
- No tracking — Servers process requests and return results, nothing else
- MCP spec compliant — Streamable HTTP transport per MCP specification
Also Available On
OpenClaw servers are listed on multiple MCP directories:
| Platform | Link |
|---|---|
| Smithery | smithery.ai |
| MCPize | mcpize.com |
| Official MCP Registry | registry.modelcontextprotocol.io |
| PulseMCP | pulsemcp.com |
| mcpservers.org | mcpservers.org |
| mcp.so | mcp.so |
npm Package
npm install openclaw-mcp-serversnpx openclaw-mcp-servers --config # Get MCP config JSON
npx openclaw-mcp-servers --list # List all 49 tools
npx openclaw-mcp-servers --servers # Show 9 endpoint URLsLicense
MIT