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Orbuc MCP server

online · 100% uptime
by xOrbuc·io.github.xOrbuc/orbuc·v1.0.0
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On-chain stablecoin market cap and Bitcoin institutional holdings data.

B79/100grade B
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Safety scan
B79/100

full report

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Orbuc tools (12)

write = sends, deletes, buys or posts
  • orbuc_btc_healthFree

    Check health of the BTC holdings tracker. Returns status, database date range, segment count, and record totals.

  • orbuc_btc_holdings_currentFree

    Get the latest total BTC held by institutions, broken down by segment. Segments: public_companies, etf_funds, governments, private_companies, defi_other, exchanges_custodians.

  • orbuc_btc_holdings_dailyFree

    Get daily BTC holdings time series, optionally filtered by segment. Args: segment: public_companies, etf_funds, governments, private_companies, defi_other, exchanges_custodians. Omit for aggregate totals. start: Start date YYYY-MM-DD end: End date YYYY-MM-DD

  • orbuc_btc_holdings_segmentsFree

    Get current BTC holdings per segment. Each segment includes btc_amount and source.

  • orbuc_btc_holdings_weeklyFree

    Get weekly aggregated BTC holdings, optionally filtered by segment. Args: segment: Segment name (optional)

  • orbuc_stablecoin_aggregateFree

    Get daily aggregate stablecoin data at different levels. level='total': daily total market cap. level='symbol': daily breakdown per stablecoin. level='chain': daily breakdown per chain per symbol.

  • orbuc_stablecoin_chainsFree

    Get stablecoin supply distribution across chains (Ethereum, Tron, Solana, etc.). Args: days: Number of days of history (optional)

  • orbuc_stablecoin_coinFree

    Get historical supply data for a specific stablecoin. Args: symbol: Stablecoin ticker, e.g. USDT, USDC, DAI (required) days: Number of days of history start_date: Start date YYYY-MM-DD end_date: End date YYYY-MM-DD

  • orbuc_stablecoin_coin_latestFree

    Get the latest supply data for a specific stablecoin with chain breakdown. Args: symbol: Stablecoin ticker, e.g. USDT, USDC (required)

  • orbuc_stablecoin_healthFree

    Check health of the stablecoin market cap tracker. Returns status, latest date, total market cap, and tracked coins/chains.

  • orbuc_stablecoin_latestFree

    Get the latest full snapshot of all tracked stablecoins with per-issuer breakdown. Returns each stablecoin's total_supply_usd, issuer, and per-chain deployment data.

  • orbuc_stablecoin_mcapFree

    Get historical daily total stablecoin market cap across all tracked issuers. Returns daily total_mcap_usd, daily_change_usd, and daily_change_pct. Source: Orbuc.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 1401ms20/20
  • Tool poisoning12 tool descriptions checked15/15
  • Auth qualityopen endpoint, read-only tools10/15
  • Maintenancelast push 179 days ago8/15
  • Maintainer identityregistry namespace matches repository owner6/10
Overall 79/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Orbuc compares

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

Safety score
79/100
higher than 58% of 48,255 servers
Tools
12
the typical server has 7
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 server answers 100%
Response time
122 ms
faster than 79% of 30,031 servers

What its tools let an agent do: 12 read

Install Orbuc in Claude Code, Cursor or VS Code

claude mcp add --transport http orbuc https://mcp.orbuc.io/mcp/orbuc
Add to Cursor

What the publisher says

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

Orbuc MCP Server

<!-- mcp-name: io.github.xorbuc/orbuc -->

Remote MCP server providing AI agents with direct access to independent on-chain stablecoin market cap and Bitcoin institutional holdings data.

Endpoint: https://mcp.orbuc.io/mcp/orbuc

Protocol: MCP Streamable HTTP (JSON-RPC 2.0 over POST) Authentication: None required (open access) Transport: Stateless HTTP — no session persistence

What is Orbuc?

Orbuc is a digital asset research and investment firm. Orbuc produces its own data, tracking two core datasets independently — no third-party aggregators:

  • Stablecoin Market Cap — direct on-chain totalSupply() RPC calls across 19 blockchain networks covering 13 stablecoins (USDT, USDC, USDS, DAI, USDe, FDUSD, PYUSD, USD1, BUIDL, BUIDL-I, crvUSD, GHO, FRAX). Updated daily at 03:00 UTC.
  • Bitcoin Institutional Holdings — compiled from SEC EDGAR 8-K filings, on-chain Etherscan data, and verified public disclosures across 6 segments (ETF funds, public companies, governments, private companies, DeFi/wrapped BTC, exchanges & custodians). Updated daily at 02:00 UTC.

Available Tools (12)

Stablecoin Market Cap

Bitcoin Institutional Holdings

Quick Start

Claude.ai / Claude Desktop

Add as a custom MCP connector:

https://mcp.orbuc.io/mcp/orbuc

VS Code / Cursor / Windsurf

Add to .vscode/mcp.json:

{
  "servers": {
    "orbuc": {
      "type": "http",
      "url": "https://mcp.orbuc.io/mcp/orbuc"
    }
  }
}

Claude Desktop Config

Add to claudedesktopconfig.json:

{
  "mcpServers": {
    "orbuc": {
      "type": "url",
      "url": "https://mcp.orbuc.io/mcp/orbuc"
    }
  }
}

Python (MCP SDK)

from mcp import ClientSession
from mcp.client.streamable_http import streamablehttp_client

async def query_orbuc():
    async with streamablehttp_client("https://mcp.orbuc.io/mcp/orbuc") as (read, write, _):
        async with ClientSession(read, write) as session:
            await session.initialize()
            tools = await session.list_tools()
            print(f"{len(tools.tools)} tools available")

            result = await session.call_tool("orbuc_btc_holdings_current", {})
            print(result.content[0].text)

cURL

# Initialize
curl -X POST https://mcp.orbuc.io/mcp/orbuc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2024-11-05","capabilities":{},"clientInfo":{"name":"test","version":"1.0"}}}'

# List tools
curl -X POST https://mcp.orbuc.io/mcp/orbuc \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/list","params":{}}'

Shortened. The full README is on GitHub.

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

Orbuc: common questions

Is Orbuc MCP server safe?
Mostly: it is graded B (79/100). Read the Orbuc safety report
How do I install Orbuc?
It runs remotely at mcp.orbuc.io. 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 Orbuc need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Orbuc maintained?
The last commit was 216 days ago (2026-04-02). The latest release is v1.0.0.
Is Orbuc up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Orbuc compare with other MCP servers?
safety score 79/100 (higher than 58% of 48,255 servers); tools 12 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.