API reference / Launches

Search launch events

Written and maintained by The ProspectAPIs team

GET/v1/launches

GET /v1/launches is the ProspectAPIs operation searchLaunches, in the Launches group of the REST API. Keyset-paginated launch events, newest launch first. Not available yet: answers 503 and charges nothing until GET /pricing reports launches available. Pass next_cursor back as cursor for the next page. Cost: Not available yet. Send your API key as a Bearer token in the Authorization header.

How this fits with the rest of the launches API, with worked examples, is in the launch events guide.

Parameters

An unknown query parameter is refused with a 400 rather than ignored, so a typo never widens a search you pay for.

Responses

Every error answers with the same JSON body, an error string and sometimes a code; the errors page lists each status and when it happens. A per-key 429 carries Retry-After; see rate limits.

200 response fields

A page of launch events. The body is a LaunchList.

Code samples

Each sample sends the same request. Set PROSPECTAPIS_KEY in your environment first. Values come from the spec's examples; replace them with your own.

curl -G https://api.prospectapis.com/v1/launches \
  -H "Authorization: Bearer $PROSPECTAPIS_KEY" \
  --data-urlencode "since=2026-10-01" \
  --data-urlencode "domain=example.com" \
  --data-urlencode "limit=10"

const params = new URLSearchParams({ since: "2026-10-01", domain: "example.com", limit: "10" });
const res = await fetch(`https://api.prospectapis.com/v1/launches?${params}`, {
  headers: { Authorization: `Bearer ${process.env.PROSPECTAPIS_KEY}` },
});
if (!res.ok) throw new Error(`${res.status}: ${(await res.json().catch(() => ({}))).error ?? res.statusText}`);
const data = await res.json();
console.log(data);

import os, requests

res = requests.get(
    "https://api.prospectapis.com/v1/launches",
    headers={"Authorization": f"Bearer {os.environ['PROSPECTAPIS_KEY']}"},
    params={"since": "2026-10-01", "domain": "example.com", "limit": 10},
    timeout=30,
)
res.raise_for_status()
data = res.json()
print(data)

Billing

Billing reserves before it serves: the call holds what it may cost, serves at most what that hold covers, and refunds the rest when the response closes. Any non-2xx answer refunds the whole hold, so a failed call costs nothing. The response reports your balance in X-Credits-Remaining.

Related

The launch events guide covers this area end to end. Previous operation: Quote a post. Next operation: Get one launch event. Every operation, grouped by area, is on the API reference index.

Create a free account to get a key, then run the samples above with your own values.