# 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 prediction odds for a given token or asset symbol.

## Facts

- Endpoint: GET https://hn-pulse.agentdiet.dev/v1/narrative-tracker?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-4abea16b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-7LW82Lny_wT-iLquI_iA

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-4abea16b
```

Example prompt: Pull the latest 5-minute delta feed for ETH — I want to see the DEX buy/sell ratio shifts, DeFiLlama APY spreads, and Polymarket odds changes right now.

## When to prefer this

Choose this endpoint when you need a stateful, real-time 5-minute delta view combining DEX orderflow, DeFi yield spreads, and Polymarket odds for autonomous trading or monitoring bots — especially when you need the rate-of-change (delta) rather than a static snapshot, and need all three signals in a single call.

## Known failure modes

- Missing or invalid 'target' token symbol returns a 400 error
- Unknown or unsupported token symbol may return empty or null deltas
- Payment not completed (HTTP 402) if x402 micropayment not provided
- Stale data or timeout if upstream DEX/DeFiLlama/Polymarket feeds are temporarily unavailable
- Rate limiting if called too frequently without valid payment credentials

## 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/narrative-tracker)

## Output

A structured delta snapshot for the requested token containing: 5-minute shifts in DEX buy/sell ratio, DeFiLlama APY spread changes, and Polymarket prediction market odds movements, enabling autonomous trading bots to detect emerging 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-4abea16b/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)