# Speer Cyber Defense – Base Blockchain Address Risk Scoring

> Speer Cyber Defense – Base Blockchain Address Risk Scoring is a paid API for AI agents from api.speercyberdefense.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns a risk assessment and intelligence report for a given Base blockchain address, scoring it for suspicious or malicious activity.

## Facts

- Endpoint: GET https://api.speercyberdefense.com/v1/blockchain/risk/%7Baddress%7D
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/speer-cyber-defense-base-blockchain-address-risk-scoring-9d06cd15
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zbbVUuvfbbjo3fq_RU4MB

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 speer-cyber-defense-base-blockchain-address-risk-scoring-9d06cd15
```

Example prompt: Can you run a risk check on the Base blockchain address 0x1234abcd...5678 and tell me if it looks safe or suspicious before I send funds to it?

## When to prefer this

Use this endpoint when you need on-chain risk intelligence specifically for Base blockchain addresses — for example, before executing a payment, onboarding a counterparty, or investigating a suspicious wallet. Prefer this over generic blockchain explorers when you need a structured risk score rather than raw transaction data, and when you want pay-per-call pricing without a subscription.

## Known failure modes

- HTTP 503 if the risk analysis fails — not billed
- Invalid or malformed address returns an error
- Address not found on Base network may return a low-confidence or empty result
- Network timeout on blockchain data retrieval

## How this service works

Cybersecurity micropayments API for AI agents — pay-per-call USDC on Base and Solana (x402 v2). Free utility services under /v1/free/* and gateway select under /v1/gateway/* (Public). Paid cybersecurity analysis, CVE/security news feeds, Base blockchain intelligence, network intel utilities, composite domain/URL reports, research, conversion, verification, and feeds. Failed security analyses are not billed (HTTP 503).

## Output

A JSON object containing an ok flag, tool name, status, and a summary string indicating the risk level and any threat indicators associated with the queried Base blockchain address. On failed analysis, the endpoint returns HTTP 503 and the call is not billed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "resource",
  "status": "ok",
  "summary": "Completed"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/speer-cyber-defense-base-blockchain-address-risk-scoring-9d06cd15/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.speercyberdefense.com](https://www.zero.xyz/host/api.speercyberdefense.com/llms.txt)