# Concordance

> Concordance: one query surfaces where a topic appears across 18 independent, real-time data sources -- news, SEC filings, court opinions, academic papers, economic indicators, stock quotes, trade data, and government records -- each result citing its real source, never a black-box summary. Four tools: full-text search, time-series lookups, cross-category topic digests, and single-call company briefs correlating market data with filings and mentions. Refreshed on a schedule, not proxied live -- see /catalog for the full source list and live freshness.

## Tools

- POST /tools/search ($0.01) -- Full-text search across every aggregated data source in one call: news, SEC filings, court opinions, academic papers, government records, and developer discussions. One query surfaces everything concordant across independently-sourced, citable results -- not a single-source wrapper. Optional source/category/since filters.
- POST /tools/series ($0.01) -- Tabular time-series lookup across economic indicators (FRED, World Bank, UN Comtrade), crypto TVL, weather, and stock quotes -- by source + series_id, with an optional date range.
- POST /tools/digest ($0.03) -- One call, every category: pulls everything matching a topic across all aggregated sources and groups it by category (news, legal, academic, dev community, ...) with counts -- replaces manually calling /tools/search once per category and merging results yourself. Structured aggregation, not an AI-generated summary.
- POST /tools/company-brief ($0.05) -- Cross-source correlation for one company in a single call: latest quotes from 3 independent market-data providers, recent SEC filings, and general mentions across news/academic/legal/dev-community sources -- joins data no single-source provider offers together. Accepts a ticker (AAPL) or company name (Apple).
- POST /tools/corroboration ($0.04) -- Is a claim independently corroborated across multiple unrelated sources, or does it trace back to a single origin? Groups matches by SOURCE (not category) so a caller sees exactly how many independent outlets/agencies back a claim -- a trust signal no single-source competitor can offer, since it requires already owning many independent sources.
- POST /tools/timeline ($0.03) -- How has coverage of a topic developed over time, across every aggregated source? Chronologically ordered (oldest first) -- unlike /tools/search (relevance-ranked) or /tools/digest (grouped by category) -- for tracking a story's evolution or an emerging trend across independently-sourced outlets in one call.

All tools are paid via x402 (USDC on Base & Solana, Coinbase CDP facilitator).

## Also available

- MCP (Streamable HTTP): /mcp/
- OpenAPI schema: /openapi.json
- Interactive docs: /docs
- Health check (free): /healthz
- Source freshness catalog (free): /catalog