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x402-paid X/social signal + Base token market intel for AI agents. Pay-per-call USDC, free preview.
About
x402-paid X/social signal + Base token market intel for AI agents. Pay-per-call USDC, free preview.
Remote endpoints: streamable-http: https://xsignal-production.up.railway.app/mcp
Security Report
10.0
Low Risk10.0Low RiskValid MCP server (1 strong, 0 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.
4 tools verified · Open access · No issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Connect
Remote Plugin
No local installation needed. Your AI client connects to the remote endpoint directly.
Add this to your MCP configuration to connect:
{
"mcpServers": {
"io-github-philpof102-svg-xsignal": {
"url": "https://xsignal-production.up.railway.app/mcp"
}
}
}Documentation
View on GitHubFrom the project's GitHub README.
⚡ xsignal
An x402-paid real-time X/social signal for AI agents — a sellable ingredient for the agentic economy on Base. Agents pay a few cents in USDC to get a fresh, scored, cited signal instead of stale training data or generic search.
Why
The x402 rail + discovery catalog are commoditized (Coinbase/Circle/AWS/Stripe). The defensible thing is a useful ingredient with a moat — here, real-time social signal scored for freshness + virality and cited to source posts, serving the crypto-native agents/traders who are the actual x402 buyers today.
Endpoints
GET /signal/preview?q=<topic> | FREE capped preview (top 3, scores only) |
GET /signal?q=<topic> | x402-paid full signal — HTTP 402 + accepts until paid, then full text + metrics + citations |
POST /signal | paid; body {candidates?[] | query, terms?, source?, limit?} |
POST /mcp | MCP get_signal tool (streamable-http) |
GET /health · /.well-known/mcp.json · /.well-known/agent-card.json | health + agent discovery |
Safety
We never sign or move funds. x402 means we receive USDC to payTo; payment is verify-only via a facilitator.
The signal is scored from public X posts — verify before acting; not financial advice.
Config (env)
| Var | Purpose |
|---|---|
XSIGNAL_PAYTO | address that receives USDC (public; no key). Default = the operator address. |
XSIGNAL_PRICE_USD | price per full signal (default 0.01) |
FACILITATOR_URL / FACILITATOR_KEY | x402 facilitator (Coinbase CDP) — until set, the paid route correctly stays 402 |
X_BEARER_TOKEN or XAI_API_KEY | live candidate source (X search / Grok). No key → a small labelled DEMO seed so the preview always renders. |
Run
npm start # :4520
npm test # 30/30 self-tests
Zero runtime dependencies — plain Node (>=18). Adapted from XMoment's x-agent scoring.
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