ToolVet
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Medical Interactions

by Saylor Innovations Medical Refer in Other

x402 APIPassing, checked 2 h ago

Drug interaction check for 2-5 drugs using FDA label text, with excerpts - reference only

GET
https://saylorinnovations.com/api/medical/interactions
Price
$0.01
per call in USDC
Uptime
100%
last 30 days
Response time
808 ms
1.4 s slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed

How to call it

GET https://saylorinnovations.com/api/medical/interactions

Each call costs $0.01 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://saylorinnovations.com/api/medical/interactions?drugs=warfarin%2Caspirin

Parameters

ParameterTypeRequiredDescription
drugsstringNo2-5 comma-separated drug names (query)

Example response

The provider's example. We can't check it without paying.

{
  "any_mentions": true,
  "drugs": [
    {
      "query": "warfarin",
      "rxcui": "11289"
    },
    {
      "query": "aspirin",
      "rxcui": "1191"
    }
  ],
  "label_mentions": [
    {
      "excerpts": [
        "…Drugs that increase bleeding risk: aspirin, NSAIDs…"
      ],
      "label_of": "warfarin",
      "matched_terms": [
        "aspirin"
      ],
      "mentions": "aspirin"
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.01.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/medical/interactions?drugs=warfarin%2Caspirin'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://saylorinnovations.com/api/medical/interactions?drugs=warfarin%2Caspirin' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsaylorinnovations.com%2Fapi%2Fmedical%2Finteractions
const res = await pay("https://saylorinnovations.com/api/medical/interactions?drugs=warfarin%2Caspirin");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://saylorinnovations.com/api/medical/interactions?drugs=warfarin%2Caspirin")
    print(res.status_code, res.text)

Security scan

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