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Fails-to-deliver API

SEC fails-to-deliver data, one clean API call.

Fails-to-deliver for every US-listed security, straight from the SEC's semi-monthly file — settlement-date share quantities that failed to deliver in NSCC's Continuous Net Settlement system, with CUSIP, issuer and reference price. Public-domain data, delivered the agent-native way.

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Settlement-date fail quantities (shares) per security
CUSIP, issuer description and reference price on each row
Every US-listed security in the SEC's CNS fails file
Semi-monthly releases, resolved CIK ↔ ticker
One agent-native JSON envelope with honest as_of
Free sandbox key, hosted MCP, Python & TS SDKs

Try it now — no signup

curl -H "Authorization: Bearer clous_live_sandbox_public_demo" \
  "https://api.clous.ai/v1/fails-to-deliver/320193?limit=3"

{
  "data": [
    { "settlement_date": "2026-05-29", "cusip": "037833100",
      "quantity_fails": 276046, "description": "APPLE INC;COM NPV",
      "price": 312.51 }
  ],
  "page": { "limit": 3, "next_cursor": null, "has_more": false },
  "as_of": "2026-05-29", "source": "sec_ftd", "warnings": []
}

Pass any cik (Clous resolves CIK ↔ ticker for you). Looking for short volume? See the short-volume API.

See it on a company

GME fails-to-deliverAMC fails-to-deliverTSLA fails-to-deliverAAPL fails-to-deliverNVDA fails-to-deliver

FTD is one of ~60 endpoints.

The same key unlocks SEC filings, financials, insider trades, 13F holdings, daily short volume and more — every record resolved to one canonical entity, in one JSON shape.

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Fails-to-deliver data is published by the U.S. Securities and Exchange Commission and is in the public domain. Clous is independent of, and not affiliated with, the SEC. Data is context for research, not investment advice.