Monitoring · x402 · early usage

US drug facts from the official label (openFDA): brands, active ingredient, uses, dosag…

US drug facts from the official label (openFDA): brands, active ingredient, uses, dosage, warnings, contraindications, interactions, pregnancy and manufacturer. Information, not medical advice.

by api.vextorium.com · discovered, not yet claimed by its owner · updated 2026-10-06

30d calls3

30d payers3

MethodPOST

Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

US drug facts from the official label (openFDA): brands, active ingredient, uses, dosage, warnings, contraindications, interactions, pregnancy and manufacturer. Information, not medical advice.

Tags: drugs · fda · medicine · health · labels · bazaar

Call contract

Method: POST
Input: json
Output: json
Last paid call: 2026-10-06

Input example from Bazaar metadata

{
  "nombre": "ibuprofen"
}

Output example

{
  "aviso": "Información del prospecto de EE. UU.; no sustituye el consejo de un profesional sanitario.",
  "busqueda": "ibuprofen",
  "fuente": "openFDA (prospectos de la FDA de EE. UU., CC0)",
  "resultados": [
    {
      "advertencias": "Warnings Allergy alert: Ibuprofen may cause a severe allergic reaction, especially in people allergic to aspirin. Symptoms may include: rash facial swelling asthma (wheezing) hives skin reddening shock blisters If an allergic reaction occurs, stop use and seek medical help right away. Stomach bleedi…",
      "contraindicaciones": "Do not use if you have ever had an allergic reaction to any other pain reliever/fever reducer right before or after heart surgery",
      "dosis": "Directions do not take more than directed the smallest effective dose should be used adults and children 12 years and over: take 1 tablet every 4 to 6 hours while symptoms persist if pain or fever does not respond to 1 tablet, 2 tablets may be used do not exceed 6 tablets in 24 hours, unless directe…",
      "embarazo_lactancia": "If pregnant or breast-feeding, ask a health professional before use. It is especially important not to use ibuprofen at 20 weeks or later in pregnancy unless definitely directed to do so by a doctor because it may cause problems in the unborn child or complications during delivery.",
      "fabricante": [
        "CVS Pharmacy"
      ],
      "indicaciones": "Uses temporarily relieves minor aches and pains due to: headache toothache backache menstrual cramps the common cold muscular aches minor pain of arthritis temporarily reduces fever",
      "interacciones": null,
      "marcas": [
        "Ibuprofen Dye Free"
      ],
      "principio_activo": [
        "IBUPROFEN"
      ],
      "tipo": [
        "HUMAN OTC DRUG"
      ],
      "version_prospecto": "20260429",
      "via": [
        "ORAL"
      ]
    }
  ]
}

Use with an agent

Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
Inspect. Fetch /resources/37203.json for the price and payment options.
Pay. Call GET https://api.vextorium.com/medicamento-info-pago. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Solana, Polygon, Optimism, eip155:5042, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price: $0.003 / request
Protocol: x402 v2
Auth: No account or API key. Pay per request.
Networks: Base, Solana, Polygon, Optimism, eip155:5042
Demand: 3 calls · 3 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

Scheme	Network	Asset	Amount	Pay to	Timeout
exact	Base eip155:8453	USDC	$0.003	0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf	300s
exact	Solana solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp	USDC	$0.003	HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2	300s
exact	Polygon eip155:137	USDC	$0.003	0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf	300s
exact	Optimism eip155:10	0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85	3000	0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf	604900s
exact	eip155:5042 eip155:5042	0x3600000000000000000000000000000000000000	3000	0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf	604900s

accepts[] (raw JSON)

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "3000",
    "amountUsd": 0.003,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:10",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
    "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
    "amount": "3000",
    "maxTimeoutSeconds": 604900
  },
  {
    "scheme": "exact",
    "network": "eip155:5042",
    "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
    "asset": "0x3600000000000000000000000000000000000000",
    "amount": "3000",
    "maxTimeoutSeconds": 604900
  }
]

Schemas

Output schema (JSON Schema)

{
  "properties": {
    "example": {
      "properties": {
        "aviso": {
          "type": [
            "string",
            "null"
          ]
        },
        "busqueda": {
          "type": [
            "string",
            "null"
          ]
        },
        "fuente": {
          "type": [
            "string",
            "null"
          ]
        },
        "resultados": {
          "items": {
            "properties": {
              "advertencias": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "contraindicaciones": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "dosis": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "embarazo_lactancia": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "fabricante": {
                "items": {
                  "type": [
                    "null",
                    "string"
                  ]
                },
                "type": [
                  "array",
                  "null"
                ]
              },
              "indicaciones": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "interacciones": {},
              "marcas": {
                "items": {
                  "type": [
                    "null",
                    "string"
                  ]
                },
                "type": [
                  "array",
                  "null"
                ]
              },
              "principio_activo": {
                "items": {
                  "type": [
                    "null",
                    "string"
                  ]
                },
                "type": [
                  "array",
                  "null"
                ]
              },
              "tipo": {
                "items": {
                  "type": [
                    "null",
                    "string"
                  ]
                },
                "type": [
                  "array",
                  "null"
                ]
              },
              "version_prospecto": {
                "type": [
                  "string",
                  "null"
                ]
              },
              "via": {
                "items": {
                  "type": [
                    "null",
                    "string"
                  ]
                },
                "type": [
                  "array",
                  "null"
                ]
              }
            },
            "type": [
              "null",
              "object"
            ]
          },
          "type": [
            "array",
            "null"
          ]
        }
      },
      "type": [
        "object",
        "null"
      ]
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

Example shape — generated from the schema, not a captured live response

{
  "example": {
    "aviso": "string",
    "busqueda": "string",
    "fuente": "string",
    "resultados": [
      {
        "advertencias": "string",
        "contraindicaciones": "string",
        "dosis": "string",
        "embarazo_lactancia": "string",
        "fabricante": [
          "value"
        ],
        "indicaciones": "string",
        "interacciones": null,
        "marcas": [
          "value"
        ],
        "principio_activo": [
          "value"
        ],
        "tipo": [
          "value"
        ],
        "version_prospecto": "string",
        "via": [
          "value"
        ]
      }
    ]
  },
  "type": "string"
}

Examples

curl

curl "https://api.vextorium.com/medicamento-info-pago"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://api.vextorium.com/medicamento-info-pago");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://api.vextorium.com/medicamento-info-pago")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider: api.vextorium.com
Endpoint: https://api.vextorium.com/medicamento-info-pago
Machine-readable: /resources/37203.json