Stelar Signals is answering right now. Last checked 1 min ago. 36 installs a week from npm. It exposes 12 tools. Last commit 25 Aug 2026.
Crypto market signals and portfolio telemetry. 6 tools pay-per-call in USDC, no API key.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.
claude mcp add stelar-signals-mcp --transport http https://api.stelardigital.com/mcp
{
"mcpServers": {
"stelar-signals-mcp": {
"url": "https://api.stelardigital.com/mcp"
}
}
}
[mcp_servers.stelar-signals-mcp]
url = "https://api.stelardigital.com/mcp"
{
"mcpServers": {
"stelar-signals-mcp": {
"url": "https://api.stelardigital.com/mcp"
}
}
}
{
"mcpServers": {
"stelar-signals-mcp": {
"url": "https://api.stelardigital.com/mcp"
}
}
}
This one needs environment variables set before it will start:
RAPIDAPI_KEY (Optional. Needed only for the 6 free-tier tools. The 6 x402 tools require no key.).
The author declared them in the registry entry; get the values from the project itself.
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
crypto_regime
crypto_sentiment
factcheck
gridparams
price
pricecheck
regime
risk
sentiment
summarize
telemetry
token_risk
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://api.stelardigital.com/mcp | streamable-http | answering | 614 ms | 1 min ago |
Stocks, crypto, FX, and portfolio math in one tool — no per-source API juggling.
Pay-per-call crypto data for AI agents. USDC.e on Tempo via MPP. No API key.
Crypto bottom/top signals: verdict + score per coin, market scans. Pay-per-call x402.
Crypto market intelligence MCP — pay-per-tool-call in USDC on Base via the x402 protocol.
247 LLMs + image/video/voice/music gen + crypto/DeFi/markets/web-search. Pay-per-call USDC, no key.
63 production tools for AI agents — one API key, pay per call in USDC (x402) or Stripe credits.
Pay-per-call crypto data for AI agents. USDC on Base via x402. No API key.
Pay-per-call crypto market intelligence for AI agents. USDC on Base via x402.
Answers built from our own checks of this server.