Financial data APIs
for AI agents
SEC filings, company screening, and industry statistics.
Pay per call via x402 — no subscriptions, no API keys.
What's in the store
Three data domains, all queryable by AI agents.
SEC Financial Statements
Standardized income statements, balance sheets, and cash flow statements for 8,500+ public companies. Backed by raw XBRL metric timeseries from SEC EDGAR.
Company Screening
Filter the entire universe of SEC-reporting companies using arbitrary financial metric expressions. Find companies matching any criteria in seconds.
Industry Statistics
SIC-level aggregate statistics — P25, P50, and P75 percentiles — for any financial metric. Benchmark any company against its industry peers.
Connect in one line
Add CornerdataStore to any MCP-compatible client — Claude Code, Cursor, or any agent framework — and your AI instantly gains access to structured financial data.
Available tools
Add to .mcp.json
{
"cds": {
"url": "https://mcp.cornerdatastore.com/sse"
}
}Works with Claude Code, Cursor, Windsurf, and any MCP-compatible client.
Try it yourself
Every endpoint is pay-per-call via HTTP 402. No API key registration required.
# Search for companies — returns HTTP 402 with payment info
curl -si "https://api.cornerdatastore.com/v1/sec/search?q=apple"
# Response headers include payment details:
# HTTP/2 402
# x-payment-required: {"accepts":[{"scheme":"exact","network":"eip155:84532",
# "maxAmountRequired":"1000","asset":"0x...","payTo":"0x..."}]}
# With an x402-compatible client, payment is handled automatically.
# Retry with proof header and receive JSON data.Full API reference at api.cornerdatastore.com/docs
Simple pricing
Fractions of a cent per call. No monthly bills.
| Endpoint | Price (USDC) |
|---|---|
| Company search / metadata | $0.001 |
| Financial statements / metrics | $0.005 |
| Industry statistics | $0.010 |
| Company screening | $0.010 |
Currently on Base Sepolia testnet. Mainnet coming soon.