Index onlineMerchant portal
Api Endpoint

Insurer Query API

Top insurers by U.S. excess & surplus (E&S / surplus lines) insurance premium for a state and period (month, half-year, or year), ranked by premium. Aggregated from state stamping office publications with source attribution. $0.10 per query. Docs: https://api.querylines.com/openapi.json

Open interactive test console

Offering

Provider
api.querylines.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Business And Commerce
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.querylines.com/v1/insurers
MIME type
application/json
First seen
2026-10-16T01:59:37.852Z
Last seen
Tags
insurance, surplus-lines, excess-and-surplus, market-data, premium, statistics

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.1 USDC
Atomic price: 100000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "100000",
    "payTo": "0x16be07aec4d16e8ec9039d16e7049ee47834acd7"
  }
]

Observed health

Status
Healthy
Latest latency
257 ms
Average latency
663 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "state": {
          "type": "string",
          "description": "Two-letter state code, e.g. FL"
        },
        "period": {
          "type": "string",
          "pattern": "^\\d{4}(-\\d{2})?$",
          "description": "Month (YYYY-MM) or year (YYYY)"
        }
      },
      "required": [
        "state",
        "period"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string"
    },
    "example": {
      "type": "object"
    }
  },
  "required": [
    "type"
  ]
}