# Vextorium Historical Crypto Token Price Lookup

> Vextorium Historical Crypto Token Price Lookup is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-13).

Returns the USD price of up to 20 crypto tokens at a specified past date/time, with exact data timestamps, sourced from DefiLlama aggregation.

## Facts

- Endpoint: POST https://api.vextorium.com/precio-historico-pago?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-historical-crypto-token-price-lookup-645ce0a1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7OEeYE6cBMA0yaViH7-IV

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability vextorium-historical-crypto-token-price-lookup-645ce0a1 -d '<json body>'
```

Example prompt: What were the USD prices of BTC, ETH, and SOL on December 31 2024? I need exact historical values with timestamps for year-end tax accounting.

## When to prefer this

Use this endpoint when you need USD prices of crypto tokens at a specific historical point in time — especially for tax, accounting, or backtesting workflows. It supports up to 20 tokens per call including major assets (BTC, ETH, SOL) and any EVM token by chain:contract or CoinGecko slug, and returns DefiLlama-aggregated prices with confidence scores and exact data timestamps. Prefer this over live-price endpoints when historical accuracy and auditability matter.

## Known failure modes

- Token not recognized by symbol or contract address — returned in 'no_encontrados' array
- Invalid date format causes request failure — must be YYYY-MM-DD, ISO 8601, or Unix timestamp
- More than 20 tokens requested — may result in partial or error response
- Date too recent (no historical data point yet) or too far in the past — token may appear in not-found list
- Network or aggregator downtime causing no data returned

## How this service works

USD price of up to 20 tokens at any past date and time (BTC, ETH, SOL... or chain:contract ids), with the exact timestamp of the data point. For accounting, taxes and backtests. Aggregated by DefiLlama.

## Output

A JSON object containing: the source ('DefiLlama (precio agregado)'), an array of matched tokens each with their ID, symbol, USD price, confidence score (0–1), and exact data point timestamp; the requested date; and a list of any tokens not found.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "monedas",
      "fecha"
     ],
     "properties": {
      "fecha": {
       "type": "string",
       "description": "YYYY-MM-DD, ISO 8601 or Unix timestamp"
      },
      "monedas": {
       "type": "string",
       "description": "Comma-separated: BTC, ETH or chain:contract / coingecko:slug"
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": [
      "object",
      "null"
     ],
     "properties": {
      "fuente": {
       "type": [
        "string",
        "null"
       ]
      },
      "precios": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": [
         "null",
         "object"
        ],
        "properties": {
         "id": {
          "type": [
           "null",
           "string"
          ]
         },
         "simbolo": {
          "type": [
           "null",
           "string"
          ]
         },
         "confianza": {
          "type": [
           "null",
           "number"
          ]
         },
         "precio_usd": {
          "type": [
           "null",
           "number"
          ]
         },
         "momento_dato": {
          "type": [
           "null",
           "string"
          ]
         }
        }
       }
      },
      "fecha_pedida": {
       "type": [
        "string",
        "null"
       ]
      },
      "no_encontrados": {
       "type": [
        "array",
        "null"
       ],
       "items": {}
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fuente": "DefiLlama (precio agregado)",
  "precios": [
   {
    "id": "coingecko:bitcoin",
    "simbolo": "BTC",
    "confianza": 0.99,
    "precio_usd": 93450,
    "momento_dato": "2024-12-31T23:59+00:00"
   },
   {
    "id": "coingecko:ethereum",
    "simbolo": "ETH",
    "confianza": 0.99,
    "precio_usd": 3333.54,
    "momento_dato": "2025-01-01T00:00+00:00"
   },
   {
    "id": "base:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "simbolo": "USDC",
    "confianza": 0.99,
    "precio_usd": 0.999934,
    "momento_dato": "2025-01-01T00:00+00:00"
   }
  ],
  "fecha_pedida": "2025-01-01T00:00+00:00",
  "no_encontrados": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-historical-crypto-token-price-lookup-645ce0a1/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)