# 2s.io FDIC Bank Directory Lookup

> 2s.io FDIC Bank Directory Lookup is a paid API for AI agents from 2s.io, paid per call via x402, $0.0012/call, status unknown (last checked 2026-09-14).

Looks up FDIC-insured US banks by name, certificate number, RSSD ID, or state, returning detailed regulatory and financial profile data.

## Facts

- Endpoint: GET https://2s.io/api/bank/lookup
- Price: $0.0012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/2s-io-d7cfcff6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HGduPjo9bMvGs-VOpvRjM

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 2s-io-d7cfcff6
```

Example prompt: Can you look up the FDIC records for 'First National Bank of Texas' — I want to see if it's still active, who its primary federal regulator is, and what its total assets and deposits are?

## When to prefer this

Use this endpoint when you need authoritative FDIC regulatory data about US banks, including regulatory classification, financial size (assets/deposits), branch counts, or historical closure information. Prefer this over general web search when you need structured, machine-readable data. Best for compliance checks, financial due diligence, or identifying the regulatory status of a specific institution.

## Known failure modes

- No matching banks found for the given name or filters — returns empty results array
- Invalid state code provided — may return empty results or validation error
- FDIC certificate number or RSSD ID not found — returns empty result set
- Limit exceeds maximum of 50 — returns validation error
- Payment failure via x402 protocol — returns 402 Payment Required

## How this service works

FDIC-insured US bank directory lookup. Lookup by name (fuzzy match), FDIC certificate number, RSSD ID, or state. Each record includes name + short name, web address, active flag, city/state/county/zip, established + insured dates, charter class, bank class, primary federal regulator, number of branches, assets and deposits ($1000s), and closed-date + reason for inactive institutions. Public-domain FDIC data, free.

## Output

Returns a paginated list of matching FDIC-insured bank records, each containing the bank's full and short name, website, active/inactive status, city/state/county/ZIP, established and insured dates, charter class, bank class, primary federal regulator, branch count, assets and deposits in thousands of dollars, and for inactive institutions, the closed date and closure reason.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "name": "First National Bank",
   "limit": 10,
   "state": "CA",
   "offset": 0,
   "status": "active"
  }
 }
}
```

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "properties": {
      "cert": {
       "type": "string",
       "description": "FDIC certificate number (exact)."
      },
      "name": {
       "type": "string",
       "description": "Fuzzy name search."
      },
      "limit": {
       "type": "integer",
       "default": 10,
       "maximum": 50,
       "minimum": 1
      },
      "state": {
       "type": "string",
       "description": "2-letter US state."
      },
      "offset": {
       "type": "integer",
       "default": 0,
       "minimum": 0
      },
      "rssdId": {
       "type": "string",
       "description": "RSSD ID (exact)."
      },
      "status": {
       "enum": [
        "active",
        "inactive",
        "any"
       ],
       "type": "string",
       "default": "active"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/2s-io-d7cfcff6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 2s.io](https://www.zero.xyz/host/2s.io/llms.txt)