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Mime From Ext

by Delx MIME From Ext in Documents & files

x402 APIPassing, checked 2 h ago

Guess MIME type from file extension. Call when you set Content-Type hints for agent uploads. Returns mime, ext, known for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.

POST https://api.delx.ai/api/v1/x402/mime-from-ext

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
4 ms typical, 4 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://api.delx.ai/api/v1/x402/mime-from-ext" \
  -H "content-type: application/json" \
  -d '{"ext":"png"}'
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 $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.delx.ai%2Fapi%2Fv1%2Fx402%2Fmime-from-ext
const res = await pay("https://api.delx.ai/api/v1/x402/mime-from-ext", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"ext":"png"}),
});
console.log(await res.json());

Example input

{
  "ext": "png"
}

Example output

{
  "ext": "png",
  "known": true,
  "mime": "image/png",
  "schema": "delx/util-mime-from-ext/v1"
}

Security scan

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

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed4024 ms$0.001
7 h agoPassed4024 ms$0.001