# Neuroterminal Filing Changes

> Neuroterminal Filing Changes is a paid API for AI agents from api.neuroterminal.xyz, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).

Returns the biggest metric movers in SEC filings for a given stock ticker since a specified date

## Facts

- Endpoint: GET https://api.neuroterminal.xyz/v1/filing-changes
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/neuroterminal-filing-changes-6f7c0b8c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3tC_Wuj_tjlbIGVNSARIK

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 neuroterminal-filing-changes-6f7c0b8c
```

Example prompt: What's the biggest metric mover in NVDA's SEC filings since 2024-01-01?

## When to prefer this

Choose this endpoint when you need to quickly identify which financial metric changed the most in a company's SEC filings since a specific date, without setting up an account or API key. It is ideal for pay-per-call workflows where you need lightweight, targeted filing intelligence for one ticker at a time, settled via USDC on Base.

## Known failure modes

- Invalid or unrecognized ticker symbol returns an error or empty result
- Date format not in ISO format (e.g. YYYY-MM-DD) causes a 400 bad request
- No filings found for the ticker since the given date returns empty or null result
- Payment not settled in USDC via x402 protocol returns 402 Payment Required
- Network or upstream data source unavailability causes 5xx errors

## How this service works

Paid HTTP endpoints for AI agents, settled in USDC on Base via the x402 protocol. No account, no API key — pay per call.

## Output

A JSON object containing the ticker symbol, the metric that changed the most (e.g. revenue), the direction of change (up or down), and the relative magnitude of the change since the specified date.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "ticker",
      "since"
     ],
     "properties": {
      "since": {
       "type": "string",
       "description": "ISO date, e.g. 2024-01-01"
      },
      "ticker": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ticker": "NVDA",
  "biggestMover": {
   "metric": "revenue",
   "direction": "up",
   "relativeChange": 1.14
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/neuroterminal-filing-changes-6f7c0b8c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.neuroterminal.xyz](https://www.zero.xyz/host/api.neuroterminal.xyz/llms.txt)