Hosted MCP tool servers

Production-hosted Model Context Protocol servers run by Capitol AI. Connect them to any MCP client — or to your Capitol org via My Tools — with a single API key.

Endpoint shape https://tools-staging.capitol.ai/<server-name>/mcp

Available servers

Economic Data API key

fred-server

US economic time series from FRED (Federal Reserve Economic Data, St. Louis Fed): search series, get series metadata, and fetch observations (GDP, inflation, interest rates, employment, and 800k+ other series).

https://tools-staging.capitol.ai/fred-server/mcp

Economic Data API key

bls-server

US labor statistics from the Bureau of Labor Statistics (BLS) v2 API: CPI, unemployment, payrolls, earnings, JOLTS, PPI and other official time series.

https://tools-staging.capitol.ai/bls-server/mcp

Events & Ticketing API key

ticketmaster-server

Live event discovery from Ticketmaster (Discovery API v2): search concerts, sports, theatre and family events by keyword, location, date and category; get full event details (prices, on-sale dates, seat maps, ticket limits); find venues and artists/teams.

https://tools-staging.capitol.ai/ticketmaster-server/mcp

Government Procurement API key

sam-gov-server

US federal contract opportunities and awards from SAM.gov: search active solicitations, pre-solicitations, and sources-sought notices by NAICS/PSC/set-aside/date; fetch a notice's full description text; search awarded contract actions (the FPDS replacement); look up entity registrations by UEI or name. Shares a 1,000-requests/day upstream budget — bulk needs belong on the SAM.gov Data Services daily CSV extract, not this API.

https://tools-staging.capitol.ai/sam-gov-server/mcp

Government Procurement API key

grants-gov-server

US federal grant and cooperative-agreement opportunities from Grants.gov: search NOFOs across all 26 granting agencies — including forecasted (pre-solicitation) opportunities — and fetch full opportunity details, eligibility, and award amounts. No upstream key required.

https://tools-staging.capitol.ai/grants-gov-server/mcp

Government Procurement API key

usaspending-server

US federal award history from USASpending.gov (every prime contract and grant back to ~FY2008): search awards by NAICS/PSC/agency/recipient, get award details, profile an agency's spending, and find expiring contracts due for recompete. No key required. Note: DoD awards surface ~90 days late by policy.

https://tools-staging.capitol.ai/usaspending-server/mcp

Government Procurement API key

gov-forecast-server

Early-signal US federal procurement: agency acquisition forecasts from the Acquisition Gateway Forecast of Contracting Opportunities (planned procurements before solicitation — estimated award date, NAICS, set-aside plan, POC), and SBIR/STTR R&D topics and historical awards from sbir.gov. No keys required. Forecast endpoints are unofficial and forecasts are directional — they slip and get cancelled.

https://tools-staging.capitol.ai/gov-forecast-server/mcp

E-Commerce API key

ebay-seller-server

eBay seller workflows via the Sell APIs (Inventory, Account, Taxonomy, Fulfillment): account readiness, category/aspect discovery, inventory and offer management, staged or composite listing publish, price/quantity updates, withdraw listings, and read seller orders. Sandbox-first; production mutations require explicit write enablement plus a separate write-authorization header (see src/services/ebay/README.md). Shared-catalog API keys alone do not authorize merchant-account mutations.

https://tools-staging.capitol.ai/ebay-seller-server/mcp

Demographics & Population Data API key

census-server

US demographic, economic, and housing data from the Census Bureau Data API: search variable tables and fetch data from ACS 5-Year (and other datasets — Decennial Census, County Business Patterns, Population Estimates) by geography, down to state/county/tract. Curated shortcuts for common indicators (population, median household income, poverty, housing, education, race/ethnicity).

https://tools-staging.capitol.ai/census-server/mcp

Get an API key

One key unlocks every server above. Self-serve minting needs a password — ask your Capitol AI contact for one.

Keys are stored hashed (SHA-256); plaintext is never kept server-side.
Your key is shown exactly once — copy it before leaving the page.
Your email is recorded with the key for attribution and revocation.
Lost a key? Just mint a new one and ask us to revoke the old one.

Self-serve keys are not enabled in this environment. Contact Capitol AI and we will mint one for you.

How to connect

1 · Endpoint & auth

Point your client at a server, send the key on every request

Each server speaks MCP over streamable HTTP at https://tools-staging.capitol.ai/<server-name>/mcp. Authenticate with X-API-Key: <key> or Authorization: Bearer <key>.

2 · Capitol platform

Add it to your org via My Tools

In your Capitol install open Settings → My Tools, add a tool with the server URL above, auth type api_key (header X-API-Key), and your key as the secret. The tools become available to your org's agents immediately.

3 · Try it from the terminal

List a server's tools with curl

curl -s https://tools-staging.capitol.ai/fred-server/mcp \
  -H 'X-API-Key: YOUR_API_KEY' \
  -H 'Content-Type: application/json' \
  -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

Or register it in any MCP client config:

{
  "mcpServers": {
    "fred-server": {
      "url": "https://tools-staging.capitol.ai/fred-server/mcp",
      "headers": { "X-API-Key": "YOUR_API_KEY" }
    }
  }
}