MCP.Market

Stelar Signals MCP server

online · 100% uptime
by StelarDigital·io.github.StelarDigital/stelar-signals-mcp·v1.1.3
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Crypto market signals and portfolio telemetry. 6 tools pay-per-call in USDC, no API key.

A88/100grade A
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Safety scan
A88/100

full report

Adoption
Growing

0 stars40 downloads/wk

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Stelar Signals tools (12)

write = sends, deletes, buys or posts
  • crypto_regimeFree

    Market regime (chop / trend_up / trend_down / high_vol) for a major crypto pair, computed from live 24h market structure by a production-grade classifier. Returns a grid_suitability verdict (good/poor/etc) telling an agent whether current conditions favor range-bound (grid) strategies or trend-following ones. Use this before deciding to deploy a grid bot, mean-reversion strategy, or trend-follow strategy on SOL, XLM, BTC, ETH, XRP, DOGE, LTC, or ADA.

  • crypto_sentimentFree

    Sentiment score (-1 to +1) with a bullish/neutral/bearish label, for either raw text or a crypto asset's recent price action, via an LLM. Give it EXACTLY ONE of `text` (free-form text to score) or `asset` (one of SOL, XLM, BTC, ETH, XRP, DOGE, LTC, ADA). Useful for agents building trading signals, news pipelines, or social-listening tools without running their own LLM sentiment call.

  • factcheckFree

    Fact-check verdict (true / false / uncertain) with a confidence score (0-1) and a 1-2 sentence reasoning for any factual claim, via an LLM. Useful for content moderation, chatbot/agent guardrails, and misinformation screening. Returns 'uncertain' for opinions or claims requiring live/real-time data.

  • gridparamsFree

    PAID PER CALL ($0.05 USDC on Base via x402). Recommended grid-trading parameters (range, spacing, order size) for a pair and capital amount, derived from live 24h market structure. Unpaid calls return the exact x402 payment terms.

  • priceFree

    PAID PER CALL ($0.005 USDC on Base via x402). Current price, 24h/7d change, and a simple signal for a major crypto asset. Unpaid calls return the exact x402 payment terms.

  • pricecheckFree

    Current price, 24h and 7d percent change, and a simple bullish/bearish/neutral signal for a major crypto asset. Low-latency market-data lookup for dashboards, bots, and alerts — one of SOL, XLM, BTC, ETH, XRP, DOGE, LTC, ADA.

  • regimeFree

    PAID PER CALL ($0.03 USDC on Base via x402). Market regime (chop / trend_up / trend_down / high_vol) plus a grid-suitability verdict, computed from live 24h market structure. Unpaid calls return the exact x402 payment terms.

  • riskFree

    PAID PER CALL ($0.02 USDC on Base via x402). Volatility / drawdown risk regime (low / med / high) vs the 30-day baseline for a major crypto asset. Unpaid calls return the exact x402 payment terms.

  • sentimentFree

    PAID PER CALL ($0.005 USDC on Base via x402). Sentiment score (-1..+1) with label for EXACTLY ONE of `text` or `asset`. Unpaid calls return the exact x402 payment terms.

  • summarizeFree

    Tight 3-5 sentence summary of a URL or a raw text block, via an LLM. Give it EXACTLY ONE of `url` (a page to fetch and summarize) or `text` (raw text to summarize directly). For agents/pipelines that need a fast, information-dense digest without running their own LLM call or web fetch.

  • telemetryFree

    PAID PER CALL ($0.005 USDC on Base via x402 — no signup, no API key). Telemetry for an AI-managed long-horizon crypto portfolio: allocation, reconciled profit-and-loss, signal votes, and the human-approval trail for every trade. Unpaid calls return the exact x402 payment terms.

  • token_riskFree

    Volatility / drawdown risk regime (low / med / high) for a major crypto asset, extending the same classifier behind crypto_regime. Tells an agent whether current volatility is elevated vs its 30-day baseline — useful for position sizing and stop-placement logic. One of SOL, XLM, BTC, ETH, XRP, DOGE, LTC, ADA.

Public scan report

scanner v0.1.10 · 2026-10-31 · same rubric, same numbers if you re-run it

no findings
  • Code scan2 source files scanned25/25
  • Live reliabilityremote reachable in 442ms20/20
  • Tool poisoning12 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 68 days ago12/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 88/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Stelar Signals compares

Against every graded Finance MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
88/100
higher than 85% of 1,759 Finance servers
Tools
12
the typical Finance server has 8
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote Finance server answers 100%
Response time
320 ms
faster than 49% of 1,131 Finance servers
Downloads a week
40
more than 33% of 422 Finance servers with a package

What its tools let an agent do: 12 read

Install Stelar Signals in Claude Code, Cursor or VS Code

claude mcp add --transport http stelar-signals-mcp https://api.stelardigital.com/mcp
Add to Cursor

What the publisher says

From the Stelar Signals repository's README, as published. We do not edit it. Read it on GitHub

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

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

Or in any MCP client config:

{
  "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

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

cryptoregime, cryptosentiment, pricecheck, tokenrisk, summarize, factcheck are served through RapidAPI. Set RAPIDAPIKEY to use them:

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

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.

Nothing above is checked by us. What we check is on the safety report.

Stelar Signals: common questions

Is Stelar Signals MCP server safe?
Yes, by our scan: it is graded A (88/100). Read the Stelar Signals safety report
How do I install Stelar Signals?
It runs remotely at api.stelardigital.com. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Stelar Signals need an API key?
Yes. The registry entry asks for RAPIDAPI_KEY.
Is Stelar Signals maintained?
The last commit was 73 days ago (2026-08-25). The latest release is v1.1.3.
Is Stelar Signals up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of Stelar Signals?
Servers from other publishers that do the same job: Blockrun MCP server, Agent402.Tools: pay-per-call web tools MCP server and three.ws Agent Payments MCP server. Compare all Stelar Signals alternatives.
How does Stelar Signals compare with other Finance MCP servers?
safety score 88/100 (higher than 85% of 1,759 Finance servers); tools 12 (the typical Finance server has 8); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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