E-mail Verification
Checks an e-mail address: syntax, whether the domain can actually receive mail, disposable and role-account detection, and typo correction.
POST /v1/email/verify · 1 credit
- No account needed to try any endpoint on this page.
- Deterministic endpoints answer from cache in single-digit milliseconds.
- Every response carries a receipt: credits charged, cache status, duration.
/v1/email/verify
{
"email": "[email protected]"
}
Press Run to call the live API from your browser.
Why this exists
Built for hostile input
A Turkish address arrives as "Cd." or "Cad." or "Caddesi", with the flat number glued to the building number. Generic parsers drop half of it silently. This one tells you what it could not place.
History cannot be backfilled
The exchange-rate archive grows every business day and each point keeps its source URL and content hash. A competitor can read today’s bulletin too — nobody can produce last quarter’s.
You only pay for work
Repeated inputs come from cache and cost zero credits. If a response ever fails its own schema, the call is refunded automatically.
Endpointsexpand any row to see the parameters and call it live
Validation1
/v1/email/verify
E-mail Verification
1 credit
Checks an e-mail address: syntax, whether the domain can actually receive mail, disposable and role-account detection, and typo correction.
No SMTP probing. Most competitors connect to the target server and try RCPT TO, which sounds thorough but produces a confident-looking number you cannot trust: most servers are catch-all, the big providers refuse to answer, and doing it in bulk gets the probing IP blacklisted. We report only what is provable — whether the domain has a mail exchanger, whether it is a known disposable service, whether the mailbox belongs to a role rather than a person, and whether the domain looks like a typo of a common one (gmial.com → gmail.com). Addresses are also normalised, so Gmail dots and +tags stop creating duplicate signups.
Parameters
| email* | string | E-mail address to check. |
| rejectFreeProviders | boolean | default false |
| rejectRoleAccounts | boolean | default false |
/v1/email/verify
{
"email": "[email protected]"
}
Press Run to call the live API from your browser.
Pricingone key covers every endpoint
- credits
- 50,000
- Rate limit
- 10/s
- credits
- 300,000
- Rate limit
- 30/s
- credits
- 2,000,000
- Rate limit
- 100/s
Credits are consumed per call and cache hits are free. Requests without a key run on a narrow per-IP demo quota so you can evaluate before signing up.
The API key is e-mailed the moment payment clears. Upgrades keep the same key, so your integration is never broken.
Use it from an AI assistantthe same catalogue, exposed as MCP tools
Every endpoint is also published over the Model Context Protocol, so Claude, ChatGPT or your own agent can call it directly — no glue code, no wrapper functions. The assistant sees the same input schemas and the same metering.
Currently 11 tools. New endpoints appear automatically; nothing to update on your side.
claude_desktop_config.json
{
"mcpServers": {
"temsor": {
"url": "https://api.temsor.com/mcp",
"headers": { "x-api-key": "fk_live_…" }
}
}
}
Quickstart
Official client: npm install temsor-api · npmjs.com/package/temsor-api
Node.js
import Client from "temsor-api";
const api = new Client({ apiKey: KEY });
const r = await api.${(() => {
const first = apis[0];
return first.slug.split(/[/-]/).map((p, i) => (i === 0 ? p : p[0].toUpperCase() + p.slice(1))).join('');
})()}(${esc(JSON.stringify(apis[0].examples[0]?.input ?? {}))});
console.log(r, r.$meta);cURL
curl -s https://api.temsor.com/v1/email/verify \
-H "content-type: application/json" \
-H "x-api-key: fk_live_…" \
-d '{"email":"[email protected]"}'JavaScript
const res = await fetch("https://api.temsor.com/v1/email/verify", {
method: "POST",
headers: { "content-type": "application/json", "x-api-key": KEY },
body: JSON.stringify({"email":"[email protected]"})
});
const { data } = await res.json();Python
import httpx
r = httpx.post("https://api.temsor.com/v1/email/verify",
headers={"x-api-key": KEY},
json={"email":"[email protected]"})
data = r.json()["data"]