# SEC Material Event Delta API

> SEC Material Event Delta API is a paid API for AI agents from polished-truth-c514.fhi-llc-1118.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Returns material SEC filing events (8-K and similar) for a given company since a specified date, enabling agents to detect significant corporate disclosures.

## Facts

- Endpoint: POST https://polished-truth-c514.fhi-llc-1118.workers.dev/api/v1/sec-material-event-delta?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sec-material-event-delta-api-6e07445b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ib9ARW5e1XYiNemlRVrie

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sec-material-event-delta-api-6e07445b -d '<json body>'
```

Example prompt: Pull all material SEC events for CIK 0000789019 (Microsoft) since January 1, 2025 and tell me what significant disclosures they've made.

## When to prefer this

Use this endpoint when you need to detect or monitor significant corporate disclosures (8-K class events) for a specific public company identified by CIK, especially in agent workflows that require tracking regulatory filings since a known date. Prefer this over general SEC search tools when you need a structured delta feed of material events rather than full-text search across all filing types.

## Known failure modes

- Invalid or non-existent CIK returns an error or empty result set
- Malformed 'since' date string causes a validation error
- Company has no material filings since the specified date, returning an empty list
- EDGAR upstream unavailability may cause delayed or failed responses
- Rate limiting or payment failure via x402 if USDC funds are insufficient

## How this service works

Stateful remote-MCP change evidence, payable per call with x402 Base USDC.

## Output

A list of material SEC filing events (e.g., 8-K disclosures) filed by the specified company since the given date, including event types, filing dates, and relevant disclosure details sourced from EDGAR.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "cik": {
   "type": "string",
   "pattern": "^[0-9]{1,10}$"
  },
  "since": {
   "type": "string",
   "format": "date"
  },
  "ticker": {
   "type": "string",
   "pattern": "^[A-Za-z0-9.-]{1,12}$"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "since": "2026-09-01",
  "company": {
   "cik": "0000320193",
   "name": "Apple Inc."
  },
  "filings": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sec-material-event-delta-api-6e07445b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from polished-truth-c514.fhi-llc-1118.workers.dev](https://www.zero.xyz/host/polished-truth-c514.fhi-llc-1118.workers.dev/llms.txt)