# cryptofeed402 Historical Market Briefs Archive

> cryptofeed402 Historical Market Briefs Archive is a paid API for AI agents from cryptofeed402.site, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-23).

Returns archived LLM-written crypto market briefs for a specified date range, including sentiment, funding rates, open interest, prices, news, and macro calendar data.

## Facts

- Endpoint: GET https://cryptofeed402.site/history?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptofeed402-historical-market-briefs-archive-a633bcd6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C2kkfNNxZKq5TvpkHJ49O

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 cryptofeed402-historical-market-briefs-archive-a633bcd6
```

Example prompt: Pull me the cryptofeed402 historical market briefs from 2024-12-01 to 2024-12-31 so I can review how funding rates and sentiment evolved through December.

## When to prefer this

Use this endpoint when you need historical crypto market context over a range of days — especially for backtesting strategies based on sentiment or funding rates, building time-series narratives, or reviewing how market conditions evolved around specific events. Prefer this over the live/current brief endpoint when the user's need is retrospective rather than real-time.

## Known failure modes

- Missing required 'from' date parameter returns a validation error
- Date range exceeding 366 days may be rejected or capped
- Invalid date format (not YYYY-MM-DD) returns a schema validation error
- Dates with no published briefs return an empty briefs array
- Payment failure on Base network blocks access (x402 payment required)
- Future dates or very recent dates may have no data if briefs not yet generated

## How this service works

Archive of past cryptofeed402 twice-daily LLM-written market briefs for a date range (from/to as YYYY-MM-DD, up to 366 days): sentiment, funding, open interest, prices, news and macro calendar per edition. Use it for backtesting, building historical context or reviewing how funding and sentiment evolved. JSON. $0.005 USDC per day in range, capped at $0.5 per call, on Base.

## Output

A JSON object containing an array of brief records for each edition published within the requested date range. Each brief includes: generated timestamp, full markdown narrative (top stories, market snapshot, Fear & Greed index, OKX + Hyperliquid funding/OI table, extreme funding highlights, macro calendar, token unlocks), structured data per coin (price, 24h/7d change, funding rate, open interest), market-level sentiment index, breadth metrics, overall funding signal, extreme funding flags, and a bottom-line summary. Also includes count of briefs returned and a disclaimer.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "from"
     ],
     "properties": {
      "to": {
       "type": "string",
       "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
       "description": "End date (UTC), YYYY-MM-DD, inclusive; defaults to from"
      },
      "from": {
       "type": "string",
       "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
       "description": "Start date (UTC), YYYY-MM-DD"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "from",
      "to",
      "count",
      "briefs"
     ],
     "properties": {
      "to": {
       "type": "string"
      },
      "from": {
       "type": "string"
      },
      "count": {
       "type": "integer"
      },
      "briefs": {
       "type": "array",
       "items": {
        "type": "object",
        "required": [
         "generated_at",
         "brief",
         "markdown"
        ],
        "properties": {
         "brief": {
          "type": "object",
          "properties": {
           "date": {
            "type": "string"
           },
           "coins": {
            "type": "object",
            "description": "per-coin price, chg_24h_pct, chg_7d_pct, okx_funding_8h, okx_oi_usd"
           },
           "labels": {
            "type": "object",
            "description": "per-coin trend_24h / trend_7d / funding labels"
           },
           "market": {
            "type": "object",
            "description": "sentiment_index, breadth_7d, funding_overall, extreme_funding_flags"
           },
           "bottom_line": {
            "type": "string"
           },
           "extreme_funding_hl": {
            "type": "array",
            "items": {
             "type": "object",
             "properties": {
              "coin": {
               "type": "string"
              },
              "oi_usd": {
               "type": "number"
              },
              "annualized_pct": {
           
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "to": "2026-10-17",
  "from": "2026-10-16",
  "count": 1,
  "briefs": [
   {
    "brief": {
     "date": "2026-10-17",
     "coins": {
      "BTC": {
       "price": 81388,
       "chg_7d_pct": -1.94,
       "okx_oi_usd": 2499707421,
       "chg_24h_pct": -0.13,
       "okx_funding_8h": 0.0000644
      }
     },
     "labels": {
      "BTC": {
       "funding": "neutral",
       "trend_7d": "slightly down",
       "trend_24h": "flat"
      }
     },
     "market": {
      "breadth_7d": "5 of 6 watchlist coins down",
      "funding_overall": "neutral",
      "sentiment_index": "neutral",
      "extreme_funding_flags": [
       "PENGU shorts crowded"
      ]
     },
     "bottom_line": "Neutral tape; crowded shorts in several alts raise squeeze risk. Watch US housing data Tuesday.",
     "extreme_funding_hl": [
      {
       "coin": "PENGU",
       "oi_usd": 9825646,
       "annualized_pct": -54.37
      }
     ]
    },
    "source": "local-model",
    "headline": "Market sentiment is neutral, with most watchlist coins lower on the week. Extreme negative funding on several Hyperliquid alts.",
    "markdown": "# Crypto Daily Digest — 2026-10-17\n## Top stories\n...\n## Market snapshot\n...\n## Crowded trades / funding\n...\n## Upcoming events (next 7 days)\n...",
    "disclaimer": "Automated data for AI agents. Not financial advice.",
    "generated_at": "2026-10-18T00:45:18.000Z"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cryptofeed402-historical-market-briefs-archive-a633bcd6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptofeed402.site](https://www.zero.xyz/host/cryptofeed402.site/llms.txt)