# 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 preflight.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 ratios, DeFiLlama APY spreads, and Polymarket odds for a given token or asset

## Facts

- Endpoint: GET https://preflight.agentdiet.dev/v1/momentum-signals?utm_source=zero.xyz
- Price: $0.03/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: preflight.agentdiet.dev
- Website: https://preflight.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/preflight-agentdiet-dev-stateful-5-minute-defi-dex-polymarket-alpha-5d01778e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kSDDleUO3MgHVojUbpsVk

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 preflight-agentdiet-dev-stateful-5-minute-defi-dex-polymarket-alpha-5d01778e
```

Example prompt: What are the latest 5-minute momentum signals for ETH — check the DEX buy/sell ratio delta, any DeFiLlama APY spread shifts, and Polymarket odds changes right now.

## When to prefer this

Choose this endpoint when an autonomous trading bot or agent needs a stateful, pre-computed 5-minute rolling delta across DEX orderflow, DeFi yield spreads, and prediction market odds in a single call — rather than querying DEX APIs, DeFiLlama, and Polymarket separately and computing deltas manually. Best suited for real-time alpha generation loops requiring sub-minute latency and multi-signal correlation.

## Known failure modes

- Missing or empty 'target' parameter returns a 400 validation error
- Unknown or unsupported token symbol may return empty deltas or a 404
- Payment not fulfilled (x402) results in a 402 Payment Required response
- DeFiLlama or Polymarket data source unavailability may return partial or stale deltas
- Rate limiting or upstream API failures may return 503 or timeout errors

## 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://preflight.agentdiet.dev/v1/momentum-signals)

## Output

Returns a structured object containing stateful 5-minute delta values including DEX buy/sell ratio changes, DeFiLlama APY spread differentials, and Polymarket odds shifts for the specified token, intended for autonomous trading bot consumption.

## 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/preflight-agentdiet-dev-stateful-5-minute-defi-dex-polymarket-alpha-5d01778e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from preflight.agentdiet.dev](https://www.zero.xyz/host/preflight.agentdiet.dev/llms.txt)