# Nomos Compliance Evidence Pack

> Nomos Compliance Evidence Pack is a paid API for AI agents from base-agent-preflight.bytoken2023.workers.dev, paid per call via x402, $5/call, status unknown (last checked 2026-09-14).

Generates a compliance evidence pack for a wallet address, assessing risk level and compliance flags for autonomous agent decision-making.

## Facts

- Endpoint: POST https://base-agent-preflight.bytoken2023.workers.dev/x402/v1/evidence/compliance-pack
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nomos-compliance-evidence-pack-f52a5c24
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap__6x6lzALQSVSO_erZKCE8

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 nomos-compliance-evidence-pack-f52a5c24 -d '<json body>'
```

Example prompt: Before we proceed with this transfer, generate a Nomos compliance evidence pack for wallet 0xAbC123... on Base — include risk scoring and any compliance flags so I can decide whether to proceed.

## When to prefer this

Use this endpoint when an autonomous agent needs structured, packaged compliance evidence for a wallet address before authorizing a transaction or interaction — particularly on the Base network. Prefer this over generic risk APIs when you need a bundled evidence pack with multiple compliance modules and a risk score that can serve as an audit artifact. Best suited for agentic workflows requiring pay-per-use compliance checks without a subscription.

## Known failure modes

- Missing or invalid wallet address returns a 400 or validation error
- Insufficient USDC payment (x402 payment required at $5 per call) returns a 402 Payment Required
- Unknown or unsupported requested_modules may return empty or partial results
- Wallet not found on supported network may return default low-risk with no data
- Service unavailability on Cloudflare Workers returns 5xx error

## How this service works

Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.

## Output

Returns a JSON object containing the network identifier (e.g. eip155:8453 for Base), the product name, and an assessment object with a risk_level string (e.g. 'low'), a numeric risk_score, and an array of compliance flags — empty if no issues are detected.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "subject": {
   "type": "WALLET"
  },
  "decision_context": {
   "type": "string"
  },
  "requested_modules": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "network": "eip155:8453",
  "product": "nomos-compliance-evidence-pack",
  "assessment": {
   "flags": [],
   "risk_level": "low",
   "risk_score": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nomos-compliance-evidence-pack-f52a5c24/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from base-agent-preflight.bytoken2023.workers.dev](https://www.zero.xyz/host/base-agent-preflight.bytoken2023.workers.dev/llms.txt)