CapitalSpec SEC Filing Analyst

x402

CapitalSpec SEC Filing Analyst is a paid API for AI agents from api.capitalspec.com, paid per call via x402, $1/call, status unknown (last checked 2026-10-11).

Fact-checks an investment thesis or claim against a company's actual SEC filings (10-K/10-Q/8-K), returning an evidence-graded verdict with verbatim quotes and red flags

Price / call$1

Seller volume →—

Success—

StatusUnknown

How this service works

Test an investment thesis or fact-check a claim against a company's actual SEC filings. Send {ticker, statement}; an analyst selects the relevant 10-K/10-Q/8-K from the full EDGAR index, deep-reads them, and returns an evidence-graded verdict — SUPPORTS, MIXED, UNDERCUTS, or INSUFFICIENT — with verbatim quotes, red flags, and what went unread. Async: pay, job id in ~2s, result in ~3 min. Built for due-diligence and equity-research agents.

Output

An asynchronous result (polled via job ID, ready in ~3 minutes) containing: a categorical verdict of SUPPORTS, MIXED, UNDERCUTS, or INSUFFICIENT; verbatim quotes from the relevant SEC filings; identified red flags or contradictions; the specific 10-K/10-Q/8-K documents consulted; and a note on what portions of the filings went unread.

Example use cases

Pre-investment thesis validation

“Before I take a position in $TSLA, can you verify the claim 'Tesla's automotive gross margins have been consistently declining over the past year' against their most recent 10-K and 10-Q filings and give me the evidence verdict with any relevant quotes?”

Short-seller report fact-check

“A short report on $BYND claims 'Beyond Meat has repeatedly missed its own guidance and has significant going-concern risk' — can you run that against their actual SEC filings and tell me if the documents support, undercut, or give mixed signals on that claim?”

Equity research note verification

“I'm writing a research note on $MRNA and want to verify the statement 'Moderna has sufficient cash runway for at least 24 months without additional fundraising' — can you check that against their latest 10-K and return any verbatim disclosures that support or contradict it?”

Technical details

Endpoint

POSThttps://api.capitalspec.com/analyze?utm_source=zero.xyz

When to prefer

Choose this endpoint when you need primary-source verification of a specific claim or thesis against actual SEC-filed documents rather than news summaries, analyst opinions, or LLM-generated financial data. Ideal for due diligence workflows, equity research validation, short-seller report auditing, or any scenario where verbatim regulatory disclosure evidence is required. Prefer over general financial data APIs when the user needs a graded, evidence-backed verdict rather than raw numbers.

Side effects

Ticker not found or not publicly traded — returns error or INSUFFICIENT verdict
Statement too vague for grounding — may return INSUFFICIENT with guidance to refine
Relevant filings not yet indexed on EDGAR — returns INSUFFICIENT with note on coverage gap
Async job timeout — job ID may expire before result is fetched
Payment failure — job not initiated, error returned immediately
Claim requires real-time data beyond filing dates — verdict limited to disclosed periods

Input

Schema · Request body

Field	Type	Description
ticker	string	Exchange ticker as listed in SEC EDGAR, e.g. TSLA, MSFT, BRK-B.
statement	string	The thesis to test against the filings, in plain English.

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