Treasury Fiscaldata MCP Server
Query US Treasury national debt, interest rates, exchange rates, and fiscal datasets via MCP. This MCP entry surfaces a curated ranking/list from the project README rather than a classic multi-tool integration surface. It still exposes 7 documented tools (including treasury_list_datasets, treasury_query_dataset, treasury_get_debt) for browsing or selecting items from that list.
People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in TypeScript.
VERIFIED ACTIVE
LAST COMMIT 2026-08-13 · ★ 2 · #296 OF 848 MAINTAINED OTHER · VERIFIED 2026-08-25
Apache-2.0 · TypeScript servers · how we verify → /methodology
01 · Install Treasury Fiscaldata MCP Server
before you install - you'll need
Set MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL, CANVAS_PROVIDER_TYPE before connecting.
Claude Code
claude mcp add cyanheads-treasury-fiscaldata-mcp-server --transport http https://treasury-fiscaldata.caseyjhand.com/mcpClaude Desktop / Cursor / VS Code - add to config
{
"mcpServers": {
"cyanheads-treasury-fiscaldata-mcp-server": {
"url": "https://treasury-fiscaldata.caseyjhand.com/mcp"
}
}
}Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.
Using another client? Same JSON, different key
Claude Desktop · mcpServers
Cursor · mcpServers
VS Code · servers
Windsurf · mcpServers
Zed · context_servers
Cline · mcpServers
Roo Code · mcpServers
Continue · mcpServers
LibreChat · mcpServers
Gemini CLI · mcpServers
Codex CLI · mcp_servers
Full setup guides: every client.
02 · Evidence
https://treasury-fiscaldata.caseyjhand.com/mcp
transport: streamable-http
endpoint alive - responded to MCP initialize · probed 2026-08-25
Security posture
What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.
runs as local process (stdio) - runs on your machine with your user's permissions · remote - your agent's requests go to treasury-fiscaldata.caseyjhand.com
endpoint auth accepted our unauthenticated MCP initialize - no credentials needed to connect
license Apache-2.0 - declared in the repository
npm package @cyanheads/treasury-fiscaldata-mcp-server - published under the repo owner's npm scope (@cyanheads)
registry namespace io.github.cyanheads is GitHub-verified and matches the repo owner
03 · What Treasury Fiscaldata MCP Server can do
Prose above is summarized from the project's README and registry record - no invented capabilities.
What you can build
With this server connected, an agent can browse the curated catalog of 17 Treasury Fiscal Data endpoints with field names, descriptions, and update cadence, query any Treasury Fiscal Data endpoint by path, field list, filters, sort, and page - with optional DataCanvas spill, fetch national debt (Debt to the Penny) - latest record, specific date, or date-range series with optional DataCanvas spill, and run a single-statement SELECT against DataCanvas dataframes using standard DuckDB SQL.
The 7 tools it gives your agent
Extracted from the project's README - what treasury-fiscaldata-mcp-server lets an agent do.
- treasury_list_datasets
- - Browse the curated catalog of 17 Treasury Fiscal Data endpoints with field names, descriptions, and update cadence
- treasury_query_dataset
- - Query any Treasury Fiscal Data endpoint by path, field list, filters, sort, and page - with optional DataCanvas spill
- treasury_get_debt
- - Fetch national debt (Debt to the Penny) - latest record, specific date, or date-range series with optional DataCanvas spill
- treasury_get_interest_rates
- - Average interest rates Treasury pays on outstanding securities by type - marketable issues, non-marketable series, and aggregate totals
- treasury_get_exchange_rates
- - Official Treasury statutory exchange rates for ~165 countries, published quarterly
- treasury_dataframe_describe
- - List DataCanvas dataframes materialized by the treasury_ tools with schema, row count, and TTL
- treasury_dataframe_query
- - Run a single-statement SELECT against DataCanvas dataframes using standard DuckDB SQL
Latest releases
v0.1.9 · 2026-08-13
Empty-result probe gating for treasury_get_interest_rates · treasury_get_interest_rates skips its empty-result span probes when a mode=series request carries no date range at all - the main fetch already ran that exact…
v0.1.8 · 2026-08-13
Live-verified dataset catalog, open security_type filter · treasury_get_interest_rates takes any security_desc value as security_type, replacing a closed enum of 8 that rejected types the dataset carries (#20) · An…
v0.1.7 · 2026-08-13
Exchange-rate correctness and honest truncation · treasury_get_exchange_rates collapses mode=latest on the currency, not the country, so an amended rate supersedes and a two-currency country keeps both (#16)…
04 · Who maintains Treasury Fiscaldata MCP Server
treasury-fiscaldata-mcp-server is maintained by cyanheads. We track 125 MCP servers from cyanheads - 124 actively maintained, 1,730 combined GitHub stars, oldest repo from Dec 2024. Full record: all servers from cyanheads.
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05 · Facts
- category
- other - ranked #296 of 848 actively-maintained other servers as of 2026-08-25.
- release cadence
- 9 releases in the last 90 days (latest 2026-08-13)
- registry
- io.github.cyanheads/treasury-fiscaldata-mcp-server (active, first published 2026-06-01 · 9 versions)
- packages
- npm:@cyanheads/treasury-fiscaldata-mcp-server · npm:@cyanheads/treasury-fiscaldata-mcp-server
06 · Treasury Fiscaldata MCP Server FAQ
Is Treasury Fiscaldata MCP Server still maintained?
Yes - as of 2026-08-25, its last commit was 2026-08-13 and it shipped 9 releases in the last 90 days. We re-verify nightly.
What can Treasury Fiscaldata MCP Server do?
With this server connected, an agent can browse the curated catalog of 17 Treasury Fiscal Data endpoints with field names, descriptions, and update cadence, query any Treasury Fiscal Data endpoint by path, field list, filters, sort, and page - with optional DataCanvas spill, fetch national debt (Debt to the Penny) - latest record, specific date, or date-range series with optional DataCanvas spill, and run a single-statement SELECT against DataCanvas dataframes using standard DuckDB SQL.
How do I install Treasury Fiscaldata MCP Server?
Run `npx -y @cyanheads/treasury-fiscaldata-mcp-server`. The README documents 3 environment variables (MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL, CANVAS_PROVIDER_TYPE) to set first. Set MCP_TRANSPORT_TYPE, MCP_LOG_LEVEL, CANVAS_PROVIDER_TYPE before connecting. You can also paste the ready-made client config above.
Does Treasury Fiscaldata MCP Server require authentication?
No - the endpoint accepted our unauthenticated MCP initialize when probed on 2026-08-25; you can connect without credentials.
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