# Asset Price Chart via Tokens API (Base/EVM)

> Asset Price Chart via Tokens API (Base/EVM) is a paid API for AI agents from api.xona-agent.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Retrieves a historical price chart for a token asset on Base/EVM networks via the Tokens API

## Facts

- Endpoint: POST https://api.xona-agent.com/base-main/tokens-api/asset-price-chart
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/asset-price-chart-via-tokens-api-base-evm-a7e4a049
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4gqAMCE_3tGQnWInIH4rZ

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 asset-price-chart-via-tokens-api-base-evm-a7e4a049 -d '<json body>'
```

Example prompt: Can you pull the price chart history for the USDC token on Base mainnet so I can see how it's moved recently?

## When to prefer this

Choose this endpoint when you need historical price chart data for a specific token on Base or another EVM-compatible network, particularly when operating in an agent workflow that supports x402 micropayment. Ideal for DeFi analytics, portfolio tracking, or pre-trade research where on-chain Base ecosystem token price history is required.

## Known failure modes

- Invalid or unrecognized token address returns an error or empty result
- Unsupported EVM network or chain ID causes a lookup failure
- Payment failure via x402 protocol results in 402 response and no data returned
- Malformed request body causes validation error
- Token with no trading history returns empty price series

## How this service works

Price chart via Tokens API (Base/EVM)

## Output

Returns historical price chart data for the specified token asset on Base/EVM networks, including price data points over time that can be used for charting, trend analysis, or financial research.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "bodyType",
    "body",
    "method"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    },
    "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"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/asset-price-chart-via-tokens-api-base-evm-a7e4a049/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.xona-agent.com](https://www.zero.xyz/host/api.xona-agent.com/llms.txt)