# Dominion Data No-Go Card Lookup

> Dominion Data No-Go Card Lookup is a paid API for AI agents from dominion-data.x402-evm-math.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).

Returns a pre-tested 'No-Go' card for a prediction-market or crypto strategy that has already been backtested and ruled out, including sample size, mean return after fees, confidence interval, and failure reason.

## Facts

- Endpoint: GET https://dominion-data.x402-evm-math.workers.dev/data/nogo?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dominion-data-no-go-card-lookup-64470324
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4B0qkNgrOkR1_Sn0QwHHv

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 dominion-data-no-go-card-lookup-64470324
```

Example prompt: Check the no-go index and tell me if a momentum-based crypto strategy has already been tested and ruled out — I want to see the sample size, mean return after fees, and why it failed.

## When to prefer this

Use this endpoint when an AI agent or quant researcher wants to avoid redundant backtesting of prediction-market or crypto strategies that have already been empirically tested and ruled out by the Dominion Colony. It is the right choice when you have a strategy ID from the /data/nogo-index free endpoint or a keyword to search, and you need rigorous disqualification data (sample size, mean after fee, CI) rather than just a heuristic opinion. Prefer this over general strategy research endpoints when the goal is specifically to skip known-bad strategies efficiently.

## Known failure modes

- ID not found in index — no matching no-go card exists for the given ID
- Keyword returns no matches — no strategies indexed under that term
- Payment not processed — x402 USDC payment of $0.05 required per call
- Malformed query parameters — missing or invalid id/keyword input
- Service unavailable — Cloudflare Worker outage or rate limiting

## How this service works

No-Go card: a prediction-market or crypto strategy the Colony already tested on real data and ruled out, with sample size, mean after fee, confidence interval and what failed. Saves you re-testing it. Query: id (see free /data/nogo-index) or a keyword.

## Output

A structured no-go card containing: the strategy name or description, sample size used in testing, mean return after fees, confidence interval, and a clear explanation of what failed and why the strategy was ruled out — allowing agents to skip redundant backtesting.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dominion-data-no-go-card-lookup-64470324/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from dominion-data.x402-evm-math.workers.dev](https://www.zero.xyz/host/dominion-data.x402-evm-math.workers.dev/llms.txt)