# Multi-Source Token Price Cross-Validation

> Multi-Source Token Price Cross-Validation is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-14).

Fetches and cross-validates a token's price from multiple independent sources (Moralis, DefiLlama), returning an aggregated price with spread metrics and a reliability rating to flag manipulation or illiquidity risk.

## Facts

- Endpoint: GET https://api.x402node.dev/market/price-multi
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/multi-source-token-price-cross-validation-21fb7eff
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cT5UU2tU_U6lmErdBNDks

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 multi-source-token-price-cross-validation-21fb7eff
```

Example prompt: Before we swap into PEPE on Base, cross-check its current price across Moralis and DefiLlama and tell me if the spread looks suspicious or if there's any manipulation or illiquidity risk flagged.

## When to prefer this

Prefer this endpoint over single-source price feeds when executing trades, swaps, or valuation decisions where a manipulated or stale price could cause financial loss. Ideal for trading agents that need to sanity-check a price oracle before acting, especially for low-liquidity or newly launched tokens where price manipulation risk is elevated.

## Known failure modes

- Token not found on one or more sources — partial data returned or error
- Network or chain not supported — 400/422 error
- Token address is invalid — validation error returned
- One source is temporarily unavailable — degraded reliability rating or fallback to fewer sources
- Rate limit or payment failure — 402 or 429 response

## How this service works

Cross-validated token price aggregated from multiple independent sources (Moralis, DefiLlama) with spread and a reliability rating that flags manipulation or illiquidity risk - protects trading agents from acting on a single manipulated or stale price feed. price cross check, multi source price, price validation, token price reliable, price manipulation check, price oracle compare Accepts payment on Base or Solana — either network works.

## Output

Returns an aggregated token price computed from multiple independent sources, individual source prices (Moralis, DefiLlama), the spread between them, and a reliability rating that flags whether the price may be manipulated or the token is illiquid.

## Example request

```json
{
 "chain": "ethereum",
 "address": "0x6B175474E89094C44Da98b954EedeAC495271d0F"
}
```

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "type": "string",
       "description": "base (default), ethereum, arbitrum, optimism, polygon"
      },
      "token": {
       "type": "string",
       "description": "ERC20 contract address (optional)"
      },
      "address": {
       "type": "string",
       "description": "Token contract (required)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/multi-source-token-price-cross-validation-21fb7eff/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)