US IPO pipeline — companies currently in registration (S-1/F-1), filterable by s
US IPO pipeline — companies currently in registration (S-1/F-1), filterable by stage, recency, SIC and domestic/foreign
Answers HTTP 400 without x402 payment termsour last check, 2026-09-24
0 of 1checks answered this week
n/amedian answer time
$0.02listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://x402.professorsausages.com/ipo-calendar/pipeline
| Category | Company and compliance |
|---|---|
| Provider host | x402.professorsausages.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | no x402 terms | 400 | 19 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"cursor": "Opaque pagination cursor returned by the previous page.",
"days": "Only issuers registered within this many days.",
"foreign": "true returns F-1 filers only, false returns S-1 only. Omit for both.",
"limit": "How many results to return.",
"sic": "4-digit SIC industry code filter.",
"stage": "Comma-separated pipeline stages to include, from registered, expected and dormant."
},
"type": "http"
}
Promised output schema (from the provider)
{
"properties": {
"input": {
"type": "object"
},
"output": {
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}