# Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream

> Stateful 5-Minute DeFi, DEX & Polymarket Alpha Delta Stream is a paid API for AI agents from x402broker.com, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).

Computes real-time 5-minute delta shifts in DEX buy/sell ratios, DeFiLlama APY spreads, and Polymarket prediction-market odds for a given token or asset.

## Facts

- Endpoint: GET https://x402broker.com/v1/crypto-alpha?utm_source=zero.xyz
- Price: $0.01/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: x402broker.com
- Website: https://x402broker.com
- Canonical page: https://www.zero.xyz/c/x402broker-com-stateful-5-minute-defi-dex-polymarket-alpha-delta-stream-c6f77ec2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_UNENRjIkwPzKzCAVwUHft

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 x402broker-com-stateful-5-minute-defi-dex-polymarket-alpha-delta-stream-c6f77ec2
```

Example prompt: What are the 5-minute delta shifts right now for ETH — give me the DEX buy/sell ratio change, the DeFiLlama APY spread movement, and any Polymarket odds shifts.

## When to prefer this

Choose this endpoint when you need a stateful, delta-based 5-minute view of DeFi and DEX market conditions — especially when your agent needs to detect momentum shifts in yield spreads, orderflow direction, and prediction-market sentiment simultaneously for a single token. Prefer this over snapshot endpoints when trend direction and rate-of-change matter more than absolute values, and when running autonomous trading loops that require frequent, lightweight polling.

## Known failure modes

- Missing or invalid 'target' parameter returns a 400 error
- Token symbol not recognized or unsupported returns empty or error response
- Upstream DEX, DeFiLlama, or Polymarket data unavailable causes degraded or stale delta output
- Payment not fulfilled (HTTP 402) when x402 micropayment is not completed
- Rate limiting if too many calls are made in rapid succession

## How this service works

Stateful 5-minute delta feed for autonomous trading bots: computes real-time shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds. (Live x402 v2, IETF MPP & MCP endpoint at https://x402broker.com/v1/crypto-alpha)

## Output

Returns a structured delta object containing the 5-minute change in DEX buy/sell ratio, DeFiLlama APY spread movement, and Polymarket odds delta for the requested token — designed for stateful autonomous trading agents to detect momentum and sentiment shifts in near real-time.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "target"
 ],
 "properties": {
  "target": {
   "type": "string",
   "minLength": 1,
   "description": "Primary token symbol or asset (e.g. AERO, ETH, SOL) to track stateful 5-minute orderflow and yield deltas"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402broker-com-stateful-5-minute-defi-dex-polymarket-alpha-delta-stream-c6f77ec2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402broker.com](https://www.zero.xyz/host/x402broker.com/llms.txt)