# Services from x402-data-api.x402agent.workers.dev on Zero

> x402-data-api.x402agent.workers.dev serves 7 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/x402-data-api.x402agent.workers.dev
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/x402-data-api.x402agent.workers.dev/health.json

## Services

- [Vellum Filing Brief](https://www.zero.xyz/c/vellum-filing-brief-ac2c3376/llms.txt): $0.15/call via x402. Returns a one-call SEC filing summary for a company: latest filings by form type, filing cadence, newest XBRL financials with period-over-period changes, and pre-computed signals.
- [Vellum Filing Delta](https://www.zero.xyz/c/vellum-filing-delta-98a35676/llms.txt): $0.05/call via x402. Returns only new SEC filings and changed XBRL financial figures for a company within a date window, including previous values and percentage moves — optimized for cheap polling of a watchlist.
- [vellum-ic-memo](https://www.zero.xyz/c/vellum-ic-memo-5342792e/llms.txt): $0.75/call via x402. Generates a structured investment-committee memo for a single company from its SEC filings, including financial trajectory, margin/leverage analysis, ranked risk flags, and analyst open items.
- [Vellum SEC Change Signal](https://www.zero.xyz/c/vellum-sec-change-signal-dbee0fff/llms.txt): $0.01/call via x402. Returns a binary changed/unchanged signal for SEC filings since a specified date, including filing count, form types, and the latest EDGAR filing.
- [vellum-sec-latest](https://www.zero.xyz/c/vellum-sec-latest-90c33bb8/llms.txt): $0.005/call via x402. Retrieves the latest SEC filing metadata for a given stock ticker or CIK, returning form type, filing date, accession number, and the official EDGAR URL.
- [Vellum SEC Research](https://www.zero.xyz/c/vellum-sec-research-130903c5/llms.txt): $0.03/call via x402. Returns raw SEC EDGAR data for a company — registry record, filtered filings with direct links, and XBRL financial facts — for agent-driven interpretation.
- [Vellum SEC Risk Flags](https://www.zero.xyz/c/vellum-sec-risk-flags-bd18252c/llms.txt): $0.02/call via x402. Returns deterministic SEC risk flags for a company including late filing notices, amendments, recent 8-K activity, negative income, and liabilities exceeding assets.

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)