# Services from fathom-opal.vercel.app on Zero

> fathom-opal.vercel.app serves 23 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/fathom-opal.vercel.app
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/fathom-opal.vercel.app/health.json

## Services

- [Fathom Macroeconomic Data API](https://www.zero.xyz/c/fathom-macroeconomic-data-api-8e68d6d9/llms.txt): $0.06/call via x402. Retrieves historical and current economic time series observations from FRED (816,000+ series) including GDP, inflation, unemployment, and interest rates
- [Fathom Macroeconomic Data API — Bulk Series Fetch](https://www.zero.xyz/c/fathom-macroeconomic-data-api-bulk-series-fetch-faf90dcf/llms.txt): $0.15/call via x402. Fetches multiple FRED economic time series in a single bulk request, returning recent observations for indicators like GDP, inflation, unemployment, and interest rates.
- [Fathom Macroeconomic Data API — Latest Value](https://www.zero.xyz/c/fathom-macroeconomic-data-api-latest-value-16521d0e/llms.txt): $0.04/call via x402. Returns the most recent data point for any FRED economic time series given a series ID
- [Fathom Macroeconomic Data Search API](https://www.zero.xyz/c/fathom-macroeconomic-data-search-api-c3aeaa64/llms.txt): $0.06/call via x402. Search 816,000+ FRED-powered economic time series by keyword to discover macroeconomic data on GDP, inflation, unemployment, interest rates, and more
- [Fathom Macroeconomic Data API — Snapshot](https://www.zero.xyz/c/fathom-macroeconomic-data-api-snapshot-50133af8/llms.txt): $0.2/call via x402. Retrieves a snapshot of macroeconomic time series data (GDP, inflation, unemployment, interest rates, etc.) powered by the FRED database of 816,000+ economic indicators
- [Fathom Macroeconomic Calendar API](https://www.zero.xyz/c/fathom-macroeconomic-calendar-api-09d4c783/llms.txt): $0.08/call via x402. Retrieves upcoming macroeconomic calendar events (economic releases, announcements) powered by FRED data
- [Fathom Macroeconomic Data API — Search Tags](https://www.zero.xyz/c/fathom-macroeconomic-data-api-search-tags-4ed4f76d/llms.txt): $0.04/call via x402. Search for FRED economic data series tags by keyword to discover available macroeconomic indicators
- [Fathom Macroeconomic Data API — Compare Series](https://www.zero.xyz/c/fathom-macroeconomic-data-api-compare-series-9363b374/llms.txt): $0.15/call via x402. Compares 2–5 FRED economic time series side-by-side, returning aligned observations for cross-series analysis
- [Fathom Macroeconomic Data API — Category Series Lookup](https://www.zero.xyz/c/fathom-macroeconomic-data-api-category-series-lookup-97711b00/llms.txt): $0.06/call via x402. Returns a list of FRED economic time series belonging to a specified category, such as GDP, inflation, or unemployment indicators.
- [Fathom Macroeconomic Data API — Category Tree](https://www.zero.xyz/c/fathom-macroeconomic-data-api-category-tree-40a9e515/llms.txt): $0.04/call via x402. Returns the hierarchical category tree of FRED macroeconomic data categories, starting from a given parent category ID
- [Fathom Macroeconomic Data API — Vintage Dates](https://www.zero.xyz/c/fathom-macroeconomic-data-api-vintage-dates-b15fb225/llms.txt): $0.06/call via x402. Returns the list of vintage dates (data release timestamps) for a given FRED economic time series, showing when historical data was revised or published
- [Fathom Macroeconomic Data API — Tags Endpoint](https://www.zero.xyz/c/fathom-macroeconomic-data-api-tags-endpoint-f502d88f/llms.txt): $0.04/call via x402. Returns a list of available tags (category/topic labels) for browsing and filtering the 816,000+ FRED-powered economic time series
- [Fathom Macroeconomic Data API — Tag Series Search](https://www.zero.xyz/c/fathom-macroeconomic-data-api-tag-series-search-eea81ceb/llms.txt): $0.06/call via x402. Returns a list of FRED economic time series filtered by a given tag (e.g. 'gdp', 'inflation', 'monthly', 'nsa')
- [Fathom Macroeconomic Data API](https://www.zero.xyz/c/fathom-macroeconomic-data-api-09f9b12e/llms.txt): $0.06/call via x402. Fetches economic time series data from FRED (Federal Reserve Economic Data) by series ID, returning historical macroeconomic indicators like GDP, inflation, and unemployment.
- [Fathom Macroeconomic Data API — Series Tags Lookup](https://www.zero.xyz/c/fathom-macroeconomic-data-api-series-tags-lookup-c388913b/llms.txt): $0.04/call via x402. Returns the tags associated with a specific FRED economic data series, given its series ID
- [Fathom Macroeconomic Data API — Category Tags](https://www.zero.xyz/c/fathom-macroeconomic-data-api-category-tags-c96605d3/llms.txt): $0.04/call via x402. Retrieves the tags associated with a specific FRED economic data category by category ID
- [Fathom Macroeconomic Data API — Release Dates](https://www.zero.xyz/c/fathom-macroeconomic-data-api-release-dates-2348182a/llms.txt): $0.06/call via x402. Returns the scheduled or historical release dates for a specific FRED economic data release, identified by release ID.
- [Fathom Macroeconomic Data API — Categories](https://www.zero.xyz/c/fathom-macroeconomic-data-api-categories-e5c1e1e7/llms.txt): $0.04/call via x402. Retrieves the hierarchical category tree from FRED's macroeconomic data catalog, listing top-level or sub-categories of economic time series
- [Fathom Macroeconomic Data API — Release Series](https://www.zero.xyz/c/fathom-macroeconomic-data-api-release-series-4e5187b1/llms.txt): $0.06/call via x402. Returns all economic data series belonging to a specific FRED data release, such as GDP or CPI releases
- [Fathom Macroeconomic Data API — Sources](https://www.zero.xyz/c/fathom-macroeconomic-data-api-sources-796fae23/llms.txt): $0.04/call via x402. Lists available macroeconomic data sources from the FRED-powered Fathom API, enabling discovery of 816,000+ economic time series.
- [Fathom Macroeconomic Data API — Popular Series](https://www.zero.xyz/c/fathom-macroeconomic-data-api-popular-series-509fd7d0/llms.txt): $0.04/call via x402. Returns a curated list of the most popular macroeconomic time series (GDP, inflation, unemployment, interest rates) sourced from the FRED database
- [Fathom Macroeconomic Data API — Related Series Lookup](https://www.zero.xyz/c/fathom-macroeconomic-data-api-related-series-lookup-0e4f16ec/llms.txt): $0.04/call via x402. Returns related FRED economic time series and their categories for a given series ID
- [Fathom Macroeconomic Data API — Releases Endpoint](https://www.zero.xyz/c/fathom-macroeconomic-data-api-releases-endpoint-b6126318/llms.txt): $0.06/call via x402. Returns a list of economic data releases from FRED, optionally filtered to dates only and limited in count

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)