curl --request POST \
--url https://api.reply.io/v3/email-validations/estimate \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"contactIds": [
2
],
"acceptPartial": true
}
'import requests
url = "https://api.reply.io/v3/email-validations/estimate"
payload = {
"contactIds": [2],
"acceptPartial": True
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({contactIds: [2], acceptPartial: true})
};
fetch('https://api.reply.io/v3/email-validations/estimate', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.reply.io/v3/email-validations/estimate",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'contactIds' => [
2
],
'acceptPartial' => true
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.reply.io/v3/email-validations/estimate"
payload := strings.NewReader("{\n \"contactIds\": [\n 2\n ],\n \"acceptPartial\": true\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.reply.io/v3/email-validations/estimate")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"contactIds\": [\n 2\n ],\n \"acceptPartial\": true\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.reply.io/v3/email-validations/estimate")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"contactIds\": [\n 2\n ],\n \"acceptPartial\": true\n}"
response = http.request(request)
puts response.read_body{
"requestedCount": 123,
"eligibleCount": 123,
"creditsAvailable": 123,
"creditsRequired": 123,
"creditsSufficient": true,
"canSchedule": true,
"blockers": [
1
]
}Estimate email validation
contacts:read scope (or a broader one that includes it).
Size and price an email validation run before committing. Nothing is queued and no credits are held. Up to 10,000 contact ids.
curl --request POST \
--url https://api.reply.io/v3/email-validations/estimate \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"contactIds": [
2
],
"acceptPartial": true
}
'import requests
url = "https://api.reply.io/v3/email-validations/estimate"
payload = {
"contactIds": [2],
"acceptPartial": True
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({contactIds: [2], acceptPartial: true})
};
fetch('https://api.reply.io/v3/email-validations/estimate', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.reply.io/v3/email-validations/estimate",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'contactIds' => [
2
],
'acceptPartial' => true
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.reply.io/v3/email-validations/estimate"
payload := strings.NewReader("{\n \"contactIds\": [\n 2\n ],\n \"acceptPartial\": true\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.reply.io/v3/email-validations/estimate")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"contactIds\": [\n 2\n ],\n \"acceptPartial\": true\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.reply.io/v3/email-validations/estimate")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"contactIds\": [\n 2\n ],\n \"acceptPartial\": true\n}"
response = http.request(request)
puts response.read_body{
"requestedCount": 123,
"eligibleCount": 123,
"creditsAvailable": 123,
"creditsRequired": 123,
"creditsSufficient": true,
"canSchedule": true,
"blockers": [
1
]
}Authorizations
Authenticate every request with a Bearer token. Pass your Reply API key in the
Authorization header:
Authorization: Bearer <your-api-key>
Get your API key from the Reply dashboard: Settings → API Key.
Body
Request body shared by both /estimate and /schedule. Specifies the contacts to validate and an optional partial-credit acceptance flag.
Contact IDs to validate. Must be non-empty, contain at most 10000 items, and every value must be a positive integer.
1 - 10000 elementsx >= 1When true, the schedule call proceeds with min(eligibleCount, creditsAvailable) contacts even if available credits are below the eligible count. When false (default), insufficient credits become a NotEnoughCredits blocker on /estimate and a 400 on /schedule.
Response
Estimate computed successfully
Synchronous probe result returned by /v3/email-validations/estimate. Reports counts, credit sufficiency, and a list of blockers that prevent scheduling.
Total number of contact IDs in the request body
Number of contacts the user can actually validate (filtered by team scope and validation-status)
Email-validation credits currently available to the team
Credits that would be charged if the eligible contacts are scheduled in full
Whether creditsAvailable >= creditsRequired
Whether the request can be scheduled — equivalent to blockers.length == 0
Reasons why scheduling is currently blocked. Empty when canSchedule is true.
Blocker codes returned by /v3/email-validations/estimate in the blockers array. The presence of any blocker (with acceptPartial = false) means the request cannot be scheduled.
| Value | Name | Meaning |
|---|---|---|
| 1 | FeatureDisabled | Email validation feature is disabled for the team |
| 2 | AddonNotPresent | Required addon is not on the subscription |
| 3 | AlreadyRunning | Another email-validation job is already running for this user |
| 4 | OutOfCredits | User has no email-validation credits available |
| 5 | NotEnoughCredits | Available credits are below the eligible-contact count (and acceptPartial = false) |
| 6 | NoEligibleContacts | No accessible contacts in RequiresValidation state were found in the request |
1, 2, 3, 4, 5, 6