ToolVet
81trust / 100

Gravatar Check

by Gravatar existence check in Email & messaging

x402 APIPassing, checked 3 h ago

Check whether an email address has a Gravatar: hashes the normalized email (MD5, pure CPU - the raw address is never sent upstream), probes gravatar.com for an avatar, and fetches the public profile when one exists (display name, username, profile URL). Accepts a raw email or a precomputed MD5/SHA-256 hash. Signal-only: a Gravatar's existence suggests a real, web-active address but does NOT verify identity or deliverability - pair with /api/email-validate for MX checks.

POST https://agent402.tools/api/gravatar-check

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
182 ms typical, 182 ms slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://agent402.tools/api/gravatar-check" \
  -H "content-type: application/json" \
  -d '{"hash":"205e460b479e2e5b48aec07710c08d50"}'
import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.03:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fgravatar-check
const res = await pay("https://agent402.tools/api/gravatar-check", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"hash":"205e460b479e2e5b48aec07710c08d50"}),
});
console.log(await res.json());

Example input

{
  "hash": "205e460b479e2e5b48aec07710c08d50"
}

Example output

{
  "avatarUrl": "https://gravatar.com/avatar/205e460b479e2e5b48aec07710c08d50",
  "exists": true,
  "hash": "205e460b479e2e5b48aec07710c08d50",
  "note": "Existence is a web-activity signal only - it does not verify identity or deliverability.",
  "profile": {
    "displayName": "Beau Lebens",
    "preferredUsername": "beau",
    "profileUrl": "https://gravatar.com/beau"
  }
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402182 ms$0.002