# Services from concordancehq.duckdns.org on Zero

> concordancehq.duckdns.org serves 4 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/concordancehq.duckdns.org
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/concordancehq.duckdns.org/health.json

## Services

- [Concordance Company Brief](https://www.zero.xyz/c/concordance-company-brief-2630dd75/llms.txt): $0.05/call via x402. Returns a single-call company brief correlating current stock market data, recent SEC filings, and cross-source mentions for a given company, sourced from 18 independent real-time data streams.
- [Concordance Digest](https://www.zero.xyz/c/concordance-digest-50339d9f/llms.txt): $0.03/call via x402. Returns a cross-category digest of where a topic appears across 18 independent data sources (news, SEC filings, court opinions, academic papers, economic indicators, stock quotes, trade data, government records), grouped by category with source citations.
- [Concordance Full-Text Search](https://www.zero.xyz/c/concordance-full-text-search-2ec19201/llms.txt): $0.01/call via x402. Searches across 18 independent real-time data sources (news, SEC filings, court opinions, academic papers, economic indicators, stock quotes, trade data, government records) and returns cited results with source attribution
- [Concordance Time-Series Lookup](https://www.zero.xyz/c/concordance-time-series-lookup-3541e4e4/llms.txt): $0.01/call via x402. Retrieves structured time-series data points for economic indicators, financial metrics, or other quantitative series from Concordance's multi-source data platform

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)