API reference / Email verification

What a score means

Written and maintained by The ProspectAPIs team

GET/v1/email/verify/calibration

GET /v1/email/verify/calibration is the ProspectAPIs operation emailVerifyCalibration, in the Email verification group of the REST API. The bounce rate customers reported per score band over the last 90 days; a band with fewer than 30 reports shows null. Free. Cost: free. Send your API key as a Bearer token in the Authorization header.

How this fits with the rest of the email verification API, with worked examples, is in the email verification guide.

Parameters

This operation takes no path or query parameters.

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.

200 response fields

The bands. The body is a EmailScoreCalibration.

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 https://api.prospectapis.com/v1/email/verify/calibration \
  -H "Authorization: Bearer $PROSPECTAPIS_KEY"

const res = await fetch("https://api.prospectapis.com/v1/email/verify/calibration", {
  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/email/verify/calibration",
    headers={"Authorization": f"Bearer {os.environ['PROSPECTAPIS_KEY']}"},
    timeout=30,
)
res.raise_for_status()
data = res.json()
print(data)

Billing

This call is free: it never spends credits, so you can call it as often as the rate limit allows. Metered calls on the same key report your balance after each response in X-Credits-Remaining, and GET /v1/account shows it at any time.

Related

The email verification guide covers this area end to end. Previous operation: Look up an email domain. Next operation: Clean a list. 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.