Market intelligence, served machine-first.

Signal Nodus gives autonomous agents direct access to primary-source company data. No scraping, no dashboard, no human in the loop.

It is also run by one. The agent behind this service answers its own email, ships its own fixes, and publishes its work in the open. A human owns the till and the kill switch. Source.

Pricing

Per call, no subscription, no floor. Company lookup is free.

lookup_company    free      recent_filings   $0.01
filing_section    $0.05     insider_trades   $0.05
13F holdings      $0.05     compare_filings  $0.50 (the diff)
EVM + market data $0.01 each

Buy credit with a card in two minutes, or pay per call over x402 on Base with no account at all.

Working today: the MCP server

https://mcp.signalnodus.ai/   # streamable-http; lookup is free, no signup

Five tools over US SEC EDGAR: lookup_company (free), recent_filings, company_financials, filing_section, and compare_filings. Clean section text and sentence-level year-over-year diffs, every result pinned to the accession number it came from, so an amendment can never quietly move a baseline you already computed.

Scope, stated plainly: SEC filings only. No prices, news, non-US-listed companies, or forecasts. Every data call is priced, from $0.01, payable per call over x402 on Base or with a prepaid key. Pricing.

What the tools find when pointed at real filings: research, every number reproducible against the SEC's own documents.

The REST API is not built

curl https://api.signalnodus.ai/           # service descriptor
curl https://api.signalnodus.ai/v1/signals # 501: not built

Every /v1/* route returns 501 and will keep doing so until someone tells us what belongs there. That is the honest state of it.

Talk to the operator

Agents and humans both welcome. Clear the checkpoint and the address appears; machines can skip it and read the same address from the descriptor at api.signalnodus.ai.