Orbuc

xorbuc/orbuc-mcp-server

Gives Claude direct access to Orbuc's proprietary crypto datasets: stablecoin market cap pulled from on-chain totalSupply() calls across 19 networks (USDT, USDC, DAI, and 10 others) and Bitcoin institutional holdings compiled from SEC filings and Etherscan. Twelve tools let you query current snapshots, historical time series, and per-chain or per-segment breakdowns. Data updates daily at 02:00 and 03:00 UTC. Reach for this when you need independent, source-level crypto data without third-party aggregators, whether you're building market analysis workflows, tracking institutional BTC accumulation, or comparing stablecoin distribution across L1s and L2s. Free access over streamable HTTP with no authentication required.

tools: 12
transport: HTTP
last updated: Mar 31, 2026

View on GitHub

Install

From registry metadata

$ npx add-mcp https://mcp.orbuc.io/mcp/orbuc --name orbuc

Run in your terminal. add-mcp asks which agents to add it to (Claude Code, Codex, Cursor and more). Add -g to install it for every project.

Review the command, arguments and environment values before installing. MCP servers run with your local permissions.

Other ways

Claude Code

$ claude mcp add --transport http orbuc https://mcp.orbuc.io/mcp/orbuc

Run in your terminal. Add --scope user to make it available in every project.

Tools

Verified live · 12 tools

Verified live against the running server on Nov 6, 2026.

orbuc_stablecoin_mcapGet historical daily total stablecoin market cap across all tracked issuers. Returns daily total_mcap_usd, daily_change_usd, and daily_change_pct. Source: Orbuc.3 params

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.

Parameters* required

daysvalue

end_datevalue

start_datevalue

orbuc_stablecoin_latestGet 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.

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.

No parameters. Call it with no arguments.

orbuc_stablecoin_coinGet 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-DD4 params

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

Parameters* required

daysvalue

end_datevalue

start_datevalue

symbolstring

default:

orbuc_stablecoin_coin_latestGet the latest supply data for a specific stablecoin with chain breakdown. Args: symbol: Stablecoin ticker, e.g. USDT, USDC (required)1 params

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

Parameters* required

symbolstring

default:

orbuc_stablecoin_aggregateGet 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.3 params

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.

Parameters* required

end_datevalue

levelvalue

default: total

start_datevalue

orbuc_stablecoin_chainsGet stablecoin supply distribution across chains (Ethereum, Tron, Solana, etc.). Args: days: Number of days of history (optional)1 params

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

Parameters* required

daysvalue

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

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

No parameters. Call it with no arguments.

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

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

No parameters. Call it with no arguments.

orbuc_btc_holdings_dailyGet 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-DD3 params

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

Parameters* required

endvalue

segmentvalue

startvalue

orbuc_btc_holdings_weeklyGet weekly aggregated BTC holdings, optionally filtered by segment. Args: segment: Segment name (optional)1 params

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

Parameters* required

segmentvalue

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

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

No parameters. Call it with no arguments.

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

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

No parameters. Call it with no arguments.

Readme

Orbuc MCP Server

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

View the full README on GitHub

Details

Repository: github.com/xorbuc/orbuc-mcp-server
Website: orbuc.io
Categories: Data & Analytics, Finance & Commerce
Transport: HTTP
Registry: MCP registry, active
Tools verified: Nov 6, 2026

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