Stelar Signals MCP

Crypto market-signal MCP tools (regime, sentiment, price, risk) via RapidAPI. Needs RAPIDAPI_KEY

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

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Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "stelar-signals-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "stelar-signals-mcp"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Capabilities & Tool Schemas (6)Self-reported

Inspect callable tools, capabilities, and parameters exposed to AI agents by Stelar Signals MCP.

crypto_regime

Market regime (chop / trend_up / trend_down / high_vol) + grid-suitability verdict for SOL, XLM, BTC, ETH, XRP, DOGE, LTC, ADA

crypto_sentiment

Sentiment score (-1..+1) + label for free text or a crypto asset's recent price action

summarize

3-5 sentence LLM summary of a URL or raw text

factcheck

true/false/uncertain verdict + confidence + reasoning for a claim

pricecheck

Price, 24h/7d change, bullish/bearish/neutral signal for a major crypto asset

token_risk

Volatility/drawdown risk regime (low/med/high) vs 30-day baseline, for position sizing

Documentation Overview

Stelar Signals MCP

An MCP (Model Context Protocol) server that gives any MCP-compatible agent (Claude Code, Claude Desktop, Cursor, Windsurf, Codex …) live crypto market signals and portfolio telemetry.

Six of its tools are pay-per-call over x402 — no signup, no account, and no API key. Your agent pays cents in USDC on Base from its own wallet and gets the data back in the same request.

Install

Terminal

claude mcp add stelar -- npx -y stelar-signals-mcp

Or in any MCP client config:

config.json

{
  "mcpServers": {
    "stelar": { "command": "npx", "args": ["-y", "stelar-signals-mcp"] }
  }
}

The server starts and lists every tool with no environment variables set.

Paid tools — x402, USDC on Base, no key required

Tool	Price	What you get
`price`	$0.005	Current price, 24h and 7d change, bull/bear/neutral signal
`sentiment`	$0.005	Sentiment score (-1 to +1) and label, for text or an asset
`telemetry`	$0.005	Live telemetry of an AI-managed crypto portfolio — allocation, reconciled P&L, signal votes, human-approval trail
`risk`	$0.02	Volatility / drawdown risk regime — ATR% vs its 30-day p80 baseline, labeled low/med/high
`regime`	$0.03	Market regime (chop / uptrend / downtrend / high-volatility) plus a grid-trading suitability verdict
`gridparams`	$0.05	Grid count, spacing %, price band and per-grid allocation from live 24h market structure

These call https://api.stelardigital.com, which answers HTTP 402 with a payment challenge. Any x402-capable client settles it and retries automatically. Assets covered: SOL, BTC, ETH, XRP, DOGE, LTC, ADA, XLM.

These are live production endpoints backed by real market data — not demo stubs.

Free-tier tools — these DO need a RapidAPI key

crypto_regime, crypto_sentiment, pricecheck, token_risk, summarize, factcheck are served through RapidAPI. Set RAPIDAPI_KEY to use them:

Terminal

claude mcp add stelar -e RAPIDAPI_KEY=your-key -- npx -y stelar-signals-mcp

Without the key these six return a clear error; the six paid x402 tools above keep working, because they do not use RapidAPI at all.

Discovery

Code

GET https://api.stelardigital.com/catalog          endpoints, prices, parameters
GET https://api.stelardigital.com/.well-known/x402 x402 discovery manifest
GET https://api.stelardigital.com/openapi.json     OpenAPI 3.1 spec

A hosted streamable-HTTP MCP endpoint is also live at https://api.stelardigital.com/mcp.

Honest limits

Signals cover the eight majors listed above, not arbitrary tokens.
Paid tools need a funded wallet; without one they return HTTP 402 rather than data.
Every response carries generated_at; nothing is cached longer than a minute.

About

Built by Stelar Digital. One human. One AI. A whole company.

MIT licensed.

Read the full README →View source on GitHub →

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Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

Last commit

1mo ago

Most recent push to the default branch.

Tools exposed

Callable tools this server registers over MCP.

Reviews

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Frequently Asked Questions about Stelar Signals MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "stelar-signals-mcp": { "command": "npx", "args": ["-y","stelar-signals-mcp"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

11/15 checks healthy over the last 45d

49Quality signal: Fair · 49/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools25/30

Adoption & activity2/15

Community engagement0/10

A guidance signal from public completeness & health data — not a user rating. New listings start lower and rise as they add docs, get verified, and grow adoption. Signals we can't observe for a listing are skipped, not counted against it.

Supply-chain signal

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Critical 0High 0Medium 0Low 0

Scanned 2d ago via OSV.dev · stelar-signals-mcp (npm)

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Documentation Overview

Stelar Signals MCP

An MCP (Model Context Protocol) server that gives any MCP-compatible agent (Claude Code, Claude Desktop, Cursor, Windsurf, Codex …) live crypto market signals and portfolio telemetry.

Six of its tools are pay-per-call over x402 — no signup, no account, and no API key. Your agent pays cents in USDC on Base from its own wallet and gets the data back in the same request.

Install

Terminal

claude mcp add stelar -- npx -y stelar-signals-mcp

Or in any MCP client config:

config.json

{
  "mcpServers": {
    "stelar": { "command": "npx", "args": ["-y", "stelar-signals-mcp"] }
  }
}

The server starts and lists every tool with no environment variables set.

Paid tools — x402, USDC on Base, no key required

Tool	Price	What you get
`price`	$0.005	Current price, 24h and 7d change, bull/bear/neutral signal
`sentiment`	$0.005	Sentiment score (-1 to +1) and label, for text or an asset
`telemetry`	$0.005	Live telemetry of an AI-managed crypto portfolio — allocation, reconciled P&L, signal votes, human-approval trail
`risk`	$0.02	Volatility / drawdown risk regime — ATR% vs its 30-day p80 baseline, labeled low/med/high
`regime`	$0.03	Market regime (chop / uptrend / downtrend / high-volatility) plus a grid-trading suitability verdict
`gridparams`	$0.05	Grid count, spacing %, price band and per-grid allocation from live 24h market structure

These are live production endpoints backed by real market data — not demo stubs.

Free-tier tools — these DO need a RapidAPI key

crypto_regime, crypto_sentiment, pricecheck, token_risk, summarize, factcheck are served through RapidAPI. Set RAPIDAPI_KEY to use them:

Terminal

claude mcp add stelar -e RAPIDAPI_KEY=your-key -- npx -y stelar-signals-mcp

Without the key these six return a clear error; the six paid x402 tools above keep working, because they do not use RapidAPI at all.

Discovery

Code

GET https://api.stelardigital.com/catalog          endpoints, prices, parameters
GET https://api.stelardigital.com/.well-known/x402 x402 discovery manifest
GET https://api.stelardigital.com/openapi.json     OpenAPI 3.1 spec

A hosted streamable-HTTP MCP endpoint is also live at https://api.stelardigital.com/mcp.

Honest limits

Signals cover the eight majors listed above, not arbitrary tokens.
Paid tools need a funded wallet; without one they return HTTP 402 rather than data.
Every response carries generated_at; nothing is cached longer than a minute.

About

Built by Stelar Digital. One human. One AI. A whole company.

MIT licensed.

Frequently Asked Questions about Stelar Signals MCP

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "stelar-signals-mcp": { "command": "npx", "args": ["-y","stelar-signals-mcp"] } }