GET /v1/forms/ncen - SEC API for AI

curl -X GET \
  -H "x-api-key: $SECAPI_API_KEY" \
  -H "secapi-version: 2026-03-19" \
  "https://api.secapi.ai/v1/forms/ncen"

{
  "requestId": "req_2ZK8Q1W9F4M6P7R3"
}

Return recent Form N-CEN annual census filings with cursor pagination and date filters

Audience: application and coding agent.

Coverage and source scope

Use this route to locate filed Form N-CEN annual census reports for registered investment companies. Results are filing records, not a current fund roster, portfolio-holdings dataset, or proof of a fund’s current registration status. date_from and date_to bound filing dates, while submission_file_limit can reduce the SEC submission history searched and omit older records. Follow nextCursor with the same filters and review the cited filing for report-period context. See filing conventions.

Canonical metadata

requestId
traceparent

Example request

curl -X GET \
  -H "x-api-key: $SECAPI_API_KEY" \
  -H "secapi-version: 2026-03-19" \
  "https://api.secapi.ai/v1/forms/ncen"

Example response

{
  "requestId": "req_2ZK8Q1W9F4M6P7R3"
}

Give this prompt to your agent

Failure posture

treat non-2xx responses as contract-aware failures, not free-form errors
preserve requestId and traceparent in logs and downstream reports
if provenance or freshness metadata is present, return it unchanged so trust is not lost in the handoff

​Coverage and source scope

​Canonical metadata

​Example request

​Example response

​Give this prompt to your agent

​Failure posture

Coverage and source scope

Canonical metadata

Example request

Example response

Give this prompt to your agent

Failure posture