# Blocksize Trader Alpha Pack Signal

> Blocksize Trader Alpha Pack Signal is a paid API for AI agents from mcp.blocksize.info, paid per call via x402, $2.5/call, status unknown (last checked 2026-10-13).

Returns a bundled set of trader-grade market indicators and alpha signals across crypto, FX, equities, and metals for AI agent decision workflows

## Facts

- Endpoint: POST https://mcp.blocksize.info/v1/signals/trader-alpha-pack?utm_source=zero.xyz
- Price: $2.5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blocksize-trader-alpha-pack-signal-3f1775f9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bJElyPvaad1Xo5Z5CtKtb

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 blocksize-trader-alpha-pack-signal-3f1775f9 -d '<json body>'
```

Example prompt: Pull me the Blocksize trader alpha pack right now — I need the full bundle of crypto VWAP, FX, metals, and AMM signals so I can decide whether to rebalance my portfolio.

## When to prefer this

Choose this endpoint when you need a comprehensive, bundled set of trader-grade signals across multiple asset classes (crypto, FX, metals, equities, AMM) in a single call, rather than querying individual asset endpoints separately. Ideal for AI trading agents that need decision-ready intelligence packs rather than raw price feeds. Best when you want VWAP windows, macro context, and alpha indicators together rather than a single spot price or bid/ask quote.

## Known failure modes

- Payment not included or insufficient USDC — returns 402 Payment Required
- Malformed body or missing required fields — returns 400 Bad Request
- Body type not set to json/form-data/text enum value — schema validation error
- Method not POST — returns 405 Method Not Allowed
- Upstream market data feed unavailable — returns 503 or error status in response
- Rate limit exceeded — returns 429 Too Many Requests

## How this service works

Find live market data and decision-ready agent workflows: Blocksize provides crypto VWAP, supported equity ticker bid/ask, FX, metals, AMM state prices, VWAP windows, market briefs, macro snapshots, and trader indicators through remote MCP discovery and x402-paid HTTP APIs.

## Output

A JSON object containing a 'data' field with the full trader alpha pack payload (VWAP windows, bid/ask spreads, FX rates, metals prices, AMM state prices, macro snapshots, and trader indicators), a 'meta' field identifying the provider as Blocksize Capital, and a 'status' field confirming success.

## 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": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "const": "POST"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "meta": {
   "provider": "Blocksize Capital"
  },
  "status": "ok"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blocksize-trader-alpha-pack-signal-3f1775f9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp.blocksize.info](https://www.zero.xyz/host/mcp.blocksize.info/llms.txt)