FDA device adverse events (MAUDE)

Summarize FDA medical device adverse event reports (openFDA MAUDE) for a device name, brand, product code or manufacturer: total matching reports, counts by event type (death, injury, malfunction), the most reported device problems, and the newest reports with date, event type, device, manufacturer, problems and a short excerpt of the event description. Send GET /api/device-adverse-events with no required fields (7 optional) and pay $0.004 per call over x402 or MPP (there is no free tier). It returns a JSON object with query, totalReports, eventTypes, topProblems, recentReports and 7 more.

Counts cover every matching report; the report list is a capped sample and says so. Optional since date. Live FDA data, no key.

Try in playground →

Parameters

Example request

curl -i "https://agent402.tools/api/device-adverse-events?device=insulin+pump&limit=3"

Without payment this returns HTTP 402 Payment Required with the exact price for device-adverse-events; any x402 v2 or MPP client pays it and retries.

Example response

{
  "query": {
    "device": "insulin pump",
    "brand": null,
    "productCode": null,
    "manufacturer": null,
    "since": null
  },
  "totalReports": 171622,
  "eventTypes": [
    {
      "eventType": "Malfunction",
      "reports": 120000
    },
    {
      "eventType": "Injury",
      "reports": 50000
    },
    {
      "eventType": "Death",
      "reports": 300
    }
  ],
  "topProblems": [
    {
      "problem": "Unintended Movement",
      "reports": 41009
    }
  ],
  "recentReports": [
    {
      "reportNumber": "2032227-2026-01234",
      "mdrReportKey": "21000000",
      "dateReceived": "2026-10-01",
      "dateOfEvent": "2026-09-20",
      "eventType": "Malfunction",
      "brandName": "EXAMPLE PUMP",
      "genericName": "INSULIN PUMP",
      "manufacturer": "Example Medical",
      "productCode": "LZG",
      "deviceClass": "2",
      "problems": [
        "Unintended Movement"
      ],
      "excerpt": "IT WAS REPORTED THAT THE PUMP ...",
      "excerptChars": 640,
      "excerptTruncated": true
    }
  ],
  "returned": 1,
  "matched": 171622,
  "complete": false,
  "truncated": true,
  "maxExcerptChars": 280,
  "disclaimer": "openFDA data is unvalidated and is not medical advice; do not rely on it to make decisions regarding medical care.",
  "source": "api.fda.gov (openFDA device adverse events, public domain)"
}

From an MCP client

catalog.call {
  "slug": "device-adverse-events",
  "params": {
    "device": "insulin pump",
    "limit": 3
  }
}

The hosted connector at https://agent402.tools/mcp needs a payment for device-adverse-events; the stdio package pays it from a wallet or from an AGENT402_CREDITS_KEY issued earlier. Local install: npx -y agent402-mcp.

Errors and behavior

• Every field is optional. An input the tool rejects returns an HTTP 4xx whose body carries error, tool, expected, required and example.
• A paid call that ends in any status of 400 or above is not charged over x402, MPP or a prepaid credits key: settlement is cancelled when the tool fails. The exception is a Tempo push credential, a transfer the buyer sent before the call: it settles before the tool runs, so if the tool then fails the payment is recorded as a refund owed to the paying wallet.
• Wallet-only: this tool reaches the network or stored state, so it has no proof-of-work tier. A prepaid card-credits key issued earlier (Authorization: Bearer a402_...) also pays it.
• A POST with a JSON body to /api/device-adverse-events is served as this GET, with the body as the input.
• An Idempotency-Key header makes a retried paid call replay the first 200 instead of charging again (an answer larger than 1 MB is not replayed).

Paid call (JavaScript agent)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client();
client.setSpendControls?.({ maxAmountPerPayment: "$0.004" }); // refuse any quote above this tool's price
registerExactEvmScheme(client, { signer: privateKeyToAccount(KEY) });
const payFetch = wrapFetchWithPayment(fetch, client);

const res = await payFetch("https://agent402.tools/api/device-adverse-events?device=insulin+pump&limit=3");

Related tools