io.github.Kind-ling/twig

Official registry AI and agents

MCP server quality scoring and optimization for the agent economy.

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @kind-ling/twig
Claude Code
claude mcp add twig -- npx -y @kind-ling/twig@0.4.2
JSON configuration (Claude Desktop, Cursor, VS Code)
{
    "mcpServers": {
        "twig": {
            "command": "npx",
            "args": [
                "-y",
                "@kind-ling/twig@0.4.2"
            ]
        }
    }
}

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Twig
  2. Free audit. Paid monitoring. Premium intelligence.
  3. The Problem
  4. Quick Start
  5. Live API
  6. Scoring Model
  7. What Twig Monitors
  8. Optimization Variants
  9. Before / After
  10. Revenue Model
  11. Supported Sources
  12. CLI Reference

Twig

Agents choose you or they don't. Twig makes them choose you.

Part of Kindling — agent SEO for the agent economy.


Free audit. Paid monitoring. Premium intelligence.

TierFeaturesPrice
Freetwig analyze — score your descriptions. twig optimize — get better variants.Always free
MonitorWeekly re-scoring, competitive position, intent trend alerts$0.50–2.00/report via x402
IntelligenceCategory benchmarks, intent corpus, competitive index$0.50–1.00/query via x402
Enterprise15% of measured x402 revenue increasePerformance-based, zero if no improvement

The Problem

Every MCP tool has a description. That description is what an LLM reads when deciding whether to call your service. It's the only signal between "selected" and "skipped".

Most descriptions are garbage.

ToolCurrent DescriptionTwig Score
exa/answer"AI-powered answer"F (28/100)
wordspace/invoke"Run wordspace AI agent loop"F (31/100)
exa/find-similar"Find similar pages"F (33/100)
jupiter/portfolio"Wallet portfolio positions"D (42/100)

These tools are useful. Their descriptions are not. And getting indexed in x402-discovery or MCPay doesn't help if agents skip you because they can't tell what you do.

Getting indexed is table stakes. Twig helps you get chosen.


Quick Start

npm install -g @kind-ling/twig
# Free — score your descriptions
twig analyze https://myservice.com/.well-known/agent.json

# Free — get optimized variants
twig optimize https://myservice.com/.well-known/agent.json

# Paid — set up weekly monitoring
twig monitor https://myservice.com/.well-known/agent.json

# Paid — see how you rank in your category
twig competitive crypto-defi

# Paid — see what agents are actually searching for
twig intents crypto-defi

Live API

Twig is available as a hosted API at **https://twig.kind-ling.com**

# Health check
curl https://twig.kind-ling.com/health

# Analyze any MCP server
curl -X POST https://twig.kind-ling.com/analyze \
  -H "Content-Type: application/json" \
  -d '{"url": "https://your-mcp-server.com/mcp"}'

# Optimize descriptions
curl -X POST https://twig.kind-ling.com/optimize \
  -H "Content-Type: application/json" \
  -d '{"url": "https://your-mcp-server.com/mcp", "category": "crypto-defi"}'

Response format:

{
  "ok": true,
  "url": "https://your-mcp-server.com/mcp",
  "output": "🔍 Analyzing...\n  Score: 72/100 (C)\n  ..."
}

No API key required for public endpoints. Rate limits apply.


Scoring Model

Three dimensions, 0–100 each:

DimensionWeightWhat it measures
Intent Match40%Similarity to top agent queries for your category
Specificity35%Output format, parameters, constraints, examples present?
Differentiation25%Do you stand out from similar services in your category?

Grades: A (85+) · B (70+) · C (55+) · D (40+) · F (<40)

Score below 40 = agents are skipping you.


What Twig Monitors

Your descriptions — re-scored weekly against a live intent corpus. Score changes alert you when your positioning drifts.

Your competitive position — how you rank vs. similar services in your category. Know when a competitor improves and overtakes you.

Intent trends — what agents are searching for this week vs. last. The queries change. Your descriptions need to keep up.

Volume correlation — description changes mapped to x402 volume changes. Close the loop between optimization and revenue.


Optimization Variants

Twig generates 3 variants per tool:

Functional — Action verb + what + return type:

"Answers questions with real-time web sources. Returns a cited response with source URLs, confidence score, and supporting quotes. Best for research and fact-checking."

Structured — Input → output with constraints:

"Web Q&A. Input: question string. Returns: answer (string), sources (URL array), confidence (0-1). Supports: factual queries, current events, research synthesis."

Contextual — Use case → action → output (highest LLM selectability):

"Use when you need a factual answer with sourced citations. Queries the web in real-time and synthesizes a response with URLs and supporting quotes. Best for research, fact-checking, and current events."


Before / After

exa/answer

Before: AI-powered answer ← F (28/100)

After (Contextual): Use when you need a factual answer with sourced citations. Queries the web in real-time and synthesizes a response with source URLs and supporting quotes. Best for research, fact-checking, and current events. ← B (72/100)

wordspace/invoke

Before: Run wordspace AI agent loop ← F (31/100)

After (Structured): Executes a Wordspace multi-step agent workflow. Input: task description and optional context. Returns: completed output, intermediate steps, tool calls made. Best for complex tasks requiring multiple tool invocations. $2/call. ← B (74/100)


Revenue Model

Standard (Monitoring)

Weekly reports are gated via x402 on Base. Set up once, runs automatically.

twig monitor 0xYourWallet --url https://myservice.com/.well-known/agent.json
Enterprise (Performance-based)

For services with existing x402 volume:

  1. twig measure 0xWallet --baseline — record 7-day baseline
  2. Deploy Twig-optimized descriptions
  3. twig measure 0xWallet --compare — measure delta (14–30 days later)
  4. Pay 15% of the revenue increase in USDC on Base
  5. Revenue flat or down? Pay nothing.

Everything measured via on-chain USDC transfer logs. No self-reporting.


Supported Sources

  • A2A Agent Cards (/.well-known/agent.json)
  • MCP servers (JSON-RPC tools/list)
  • OpenAPI specs
  • Local JSON schema files
  • x402-discovery catalog (for competitive analysis)

CLI Reference

twig analyze <url>              Score descriptions (0-100, free)
twig optimize <url>             Generate 3 optimized variants (free)
twig monitor <url>              Weekly monitoring (paid via x402)
twig competitive <category>     Category ranking (paid via x402)
twig intents <category>         Top agent queries (paid via x402)
twig measure <wallet>           Measure x402 revenue
twig measure <wallet> --baseline   Save baseline
twig measure <wallet> --compare    Compare to baseline
twig report <wallet>            Revenue report with fee calculation

Categories: crypto-defi, data-feeds, research, computation, media, communication, general

Twig v0.1.0 · Kind-ling · Permanent Upper Class · MIT

Frequently asked questions

What is io.github.Kind-ling/twig?

MCP server quality scoring and optimization for the agent economy.

How do I install io.github.Kind-ling/twig?

It runs on your machine. In Claude Code: claude mcp add twig -- npx -y @kind-ling/twig@0.4.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.Kind-ling/twig need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Is io.github.Kind-ling/twig open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains io.github.Kind-ling/twig?

It is published by Kind-ling. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.