# 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 hn-pulse.agentdiet.dev, paid per call via MPP, $0.03/call, status unknown (last checked 2026-10-21).

Returns real-time 5-minute delta shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds for a given token or asset

## Facts

- Endpoint: GET https://hn-pulse.agentdiet.dev/v1/crypto-alpha?utm_source=zero.xyz
- Price: $0.03/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: hn-pulse.agentdiet.dev
- Website: https://hn-pulse.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/hn-pulse-agentdiet-dev-stateful-5-minute-defi-dex-polymarket-alpha-850267f2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PlIQAW0O5Q_rhp9Uy848V

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 hn-pulse-agentdiet-dev-stateful-5-minute-defi-dex-polymarket-alpha-850267f2
```

Example prompt: What are the 5-minute delta shifts in DEX buy/sell ratio, DeFiLlama APY spreads, and Polymarket odds for ETH right now?

## When to prefer this

Choose this endpoint when an autonomous trading bot or agent needs stateful, short-interval (5-minute) delta signals across multiple DeFi data sources — DEX orderflow, yield spreads, and prediction market odds — for a single token. It is preferable over static price feeds or single-source APIs when you need composite alpha signals that track momentum shifts rather than absolute values.

## Known failure modes

- Missing or invalid token symbol returns a validation error
- Unknown or unsupported asset symbols may return empty or null delta values
- Payment failure via x402 results in HTTP 402 response blocking data delivery
- Stale or unavailable upstream data (DeFiLlama, Polymarket, DEX) may result in incomplete deltas
- Rate limiting may occur if called too frequently without proper payment headers

## 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://hn-pulse.agentdiet.dev/v1/crypto-alpha)

## Output

A structured object containing stateful 5-minute deltas for the requested token, including DEX buy/sell ratio changes, DeFiLlama APY spread movements, and Polymarket odds shifts — designed for consumption by autonomous trading bots tracking short-term alpha signals.

## 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/hn-pulse-agentdiet-dev-stateful-5-minute-defi-dex-polymarket-alpha-850267f2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from hn-pulse.agentdiet.dev](https://www.zero.xyz/host/hn-pulse.agentdiet.dev/llms.txt)