Historical Token Price Lookup at a Single Timestamp

{
  "type": "object",
  "required": [
    "coins",
    "timestamp"
  ],
  "properties": {
    "coins": {
      "type": "string",
      "description": "Comma-separated set of tokens as {chain}:{address} or coingecko:{id}, e.g. 'coingecko:ethereum,avax:0x...'."
    },
    "timestamp": {
      "type": "number",
      "description": "Unix timestamp (seconds) of the time to look up historical prices for."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "required": [
    "coins"
  ],
  "properties": {
    "coins": {
      "type": "object",
      "description": "Keyed by the same coin identifiers passed in the `coins` input (e.g. 'coingecko:ethereum', 'avax:0x...'). A coin identifier the endpoint didn't recognize is simply absent from this object -- observed as `coins: {}` (empty) when the single requested identifier was unrecognized, not an error and not a null entry.",
      "additionalProperties": {
        "type": "object",
        "properties": {
          "price": {
            "type": "number",
            "description": "USD price at `timestamp`."
          },
          "symbol": {
            "type": "string",
            "description": "The token's ticker symbol, e.g. 'ETH'."
          },
          "timestamp": {
            "type": "number",
            "description": "Unix seconds of the actual matched price point -- observed a couple of minutes off from the requested timestamp, since this is the closest known price point, not necessarily an exact match."
          },
          "confidence": {
            "type": "number",
            "description": "0-1 confidence score for the match; observed as 0.99 on the found fixture."
          }
        },
        "description": "One recognized coin's historical price data at the requested timestamp.",
        "additionalProperties": true
      }
    }
  },
  "description": "The coins result, keyed by the caller's own requested coin identifiers.",
  "additionalProperties": true
}