# Speer Cyber Defense – Base Blockchain On-Chain Intelligence Feed

> Speer Cyber Defense – Base Blockchain On-Chain Intelligence Feed is a paid API for AI agents from api.speercyberdefense.com, paid per call via x402, $0.002/call, status down (last checked 2026-09-15).

Returns the latest on-chain intelligence items for the Base blockchain, including recent activity, transactions, or threat signals relevant to Base network security.

## Facts

- Endpoint: GET https://api.speercyberdefense.com/v1/intel/onchain/latest
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/speer-cyber-defense-base-blockchain-on-chain-intelligence-feed-7ada374a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xYYwXeYLSTZj_U5DLyl7e

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-on-chain-intelligence-feed-7ada374a
```

Example prompt: Pull the latest on-chain intelligence feed from Base — give me the 25 most recent items so I can review any security signals or suspicious activity on the Base blockchain.

## When to prefer this

Choose this endpoint when you need the latest on-chain security intelligence specifically for the Base blockchain (or Solana), delivered as a structured feed. It is ideal for security dashboards, automated threat monitoring, or research workflows where you want recent blockchain activity and threat signals without building your own blockchain indexer. The micropayment model ($0.002 USDC per call) makes it cost-effective for frequent polling. Prefer this over generic blockchain explorers when you need security-focused intelligence rather than raw transaction data.

## Known failure modes

- No items returned if the feed is empty or no recent on-chain events exist
- HTTP 402 if payment via x402 is not properly included in the request
- HTTP 503 if the analysis fails — notably, failed analyses are not billed
- Invalid or unsupported 'chain' parameter may return an error or empty result
- Rate limiting or payment failure may prevent access to the endpoint

## 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

Returns a JSON object with a boolean 'ok' status, an array of on-chain intelligence items, a status string, and an ISO 8601 'updatedAt' timestamp indicating when the feed was last refreshed. The items array contains the latest blockchain intelligence entries for the queried chain (e.g. Base).

## 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": {
      "chain": {
       "type": "string",
       "example": "base"
      },
      "limit": {
       "type": "number",
       "example": 25
      }
     },
     "additionalProperties": true
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "items": {
       "type": "array"
      },
      "status": {
       "type": "string"
      },
      "updatedAt": {
       "type": "string",
       "format": "date-time"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "items": [],
  "status": "ok",
  "updatedAt": "2026-01-01T00:00:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/speer-cyber-defense-base-blockchain-on-chain-intelligence-feed-7ada374a/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)