Marketplace · API · x402
api.form5500data.com/changes
Sales triggers and change events across U.S. retirement plans, found by comparing each plan's consecutive public DOL Form 5500 filings: recordkeeper and advisor changes (compared by firm family, so rebrands aren't changes), auditor changes, new plans, mergers, terminations, late deposits and large asset jumps. Filters: EIN, state, event type, recordkeeper moved from and to, filing date, plan year, size, confidence; sortable by plan size. Each event has before/after values and a confidence.
| Endpoint | https://api.form5500data.com/changes |
| Trust | Not checked yet |
| Pricing | Pay per call with x402, no account. Call it to get an exact quote before paying. |
| network | eip155:8453 |
| scheme | exact |
| pay to | 0x1C79c5C2eE71ADDaeADe5CCF3F707D924C75Cb4b |
| method | GET |
| last updated | 2026-11-08T23:34:57.015Z |
Use it
Call it (an x402 client pays automatically)
curl -i https://api.form5500data.com/changes
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATUREThis listing as JSON
curl https://aipaygen.com/v1/catalog/api/x402-cf9910e707e31390Search the whole marketplace from your agent (MCP)
{
"mcpServers": {
"aipaygen": {
"url": "https://aipaygen.com/mcp"
}
}
}