Marketplace · API · x402

api.querylines.com/v1/rates/activity

The rate-activity index: admitted-market SERFF rate filings aggregated by state, coverage line, and period (month/quarter/year) -- filing_count, avg_rate_change_pct, share_increasing/share_decreasing, max_increase. Compare Texas vs Mississippi with states=TX,MS. Large admitted-market rate activity is a leading indicator of surplus-lines (E&S) growth. $0.10 per query. Free sample: /v1/rates/sample. Docs: https://api.querylines.com/openapi.json

Endpoint	`https://api.querylines.com/v1/rates/activity`
Trust	✓ Verified callable · 100% uptime over 1 checks · ~1039 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x16be07aec4d16e8ec9039d16e7049ee47834acd7
method	GET
last updated	2026-11-03T21:49:49.983Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.querylines.com/v1/rates/activity
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-40d3b24cbb955498

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}