# fittings SEC Ticker Resolver

> fittings SEC Ticker Resolver is a paid API for AI agents from fittings.sh, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Resolves a stock ticker symbol to its SEC Central Index Key (CIK) and registered company name.

## Facts

- Endpoint: GET https://fittings.sh/v1/sec/ticker-resolve
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fittings-sec-ticker-resolver-92f2d775
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_lnIy1AE02jnIYn8PWk1LE

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 fittings-sec-ticker-resolver-92f2d775
```

Example prompt: What is the SEC CIK number and registered company name for the ticker TSLA?

## When to prefer this

Use this endpoint when you need to bridge between a market-facing stock ticker (e.g. AAPL) and the SEC's internal EDGAR identifier (CIK), which is required for querying SEC filings, XBRL data, or any EDGAR API. Prefer this over manual EDGAR search when automating pipelines that need to look up filings programmatically.

## Known failure modes

- Ticker not found in SEC database — returns error or empty result for delisted or invalid symbols
- Ticker maps to multiple entities (e.g. share classes) — may return primary entity only
- SEC EDGAR service unavailable — upstream timeout or error propagated
- Ticker input case sensitivity or formatting issues causing no-match

## How this service works

Resolves a stock ticker to the SEC central index key and registered company name.

## Output

Returns the SEC Central Index Key (CIK), a unique numeric identifier assigned by the SEC to each registered entity, along with the official registered company name as it appears in EDGAR.

## 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"
     ],
     "properties": {
      "ticker": {
       "type": "string",
       "description": "Exchange ticker, e.g. AAPL"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fittings-sec-ticker-resolver-92f2d775/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from fittings.sh](https://www.zero.xyz/host/fittings.sh/llms.txt)