Scout trust intelligence plugin for ElizaOS - gives your agent the ability to verify x402 services, scan skills for security issues, and make trust-aware transaction decisions.

What It Does

CHECK_SERVICE_TRUST - Score any x402 service across 4 trust pillars (Contract Clarity, Availability, Response Fidelity, Identity Safety)
CHECK_FIDELITY - Probe whether a service actually follows the x402 protocol and delivers what it advertises
SCAN_SKILL - Scan a skill or MCP server for security issues before installing
BROWSE_LEADERBOARD - Discover trusted x402 services by category
BATCH_SCORE_SERVICES - Score up to 20 services at once

Plus automatic trust context injection and transaction safety guards.

Installation

npm install @scoutscore/plugin-eliza

Usage

Add the plugin to your ELIZA agent's character file:

{
  "plugins": ["@scoutscore/plugin-eliza"]
}

Or register it programmatically:

import { scoutPlugin } from "@scoutscore/plugin-eliza";

const agent = new AgentRuntime({
  plugins: [scoutPlugin],
  // ...
});

Configuration

Set these environment variables (all optional - sensible defaults provided):

Variable	Default	Description
`SCOUT_API_URL`	`https://scoutscore.ai`	Scout API base URL
`SCOUT_MIN_SERVICE_SCORE`	`50`	Minimum trust score for x402 payments
`SCOUT_AUTO_REJECT_FLAGS`	`WALLET_SPAM_FARM,TEMPLATE_SPAM,ENDPOINT_DOWN`	Auto-reject flags
`SCOUT_CACHE_TTL`	`30`	Cache TTL in minutes
`SCOUT_WATCHED_DOMAINS`	(empty)	Comma-separated domains to monitor
`SCOUT_WATCH_INTERVAL`	`60`	Monitor check interval in minutes
`SCOUT_API_KEY`	(empty)	API key for authenticated endpoints

How It Works

Actions

Your agent responds to natural language:

"Is recoupable.com trustworthy?"

The agent calls Scout's API and responds with:

Trust score (0-100) with 4-pillar breakdown
Verdict (RECOMMENDED / USABLE / CAUTION / NOT_RECOMMENDED)
Endpoint health status
Fidelity score
Warning flags

Providers

The trust-context provider automatically injects trust data about any domain mentioned in conversation. The LLM sees this context without the user needing to explicitly ask:

Trust context for recoupable.com: Score 100/100 (HIGH).
Pillars: Contract 100, Availability 100, Fidelity 100, Safety 70.
Verdict: RECOMMENDED (max $5,000). Health: UP (57ms).

Transaction Guard

The transaction-guard evaluator watches for payment-related messages. If a user tries to pay an untrusted service, the agent warns or blocks:

Transaction BLOCKED: sketchy-api.xyz (score 18/100, VERY_LOW)
has auto-reject flags: ENDPOINT_DOWN, WALLET_SPAM_FARM.
This service is not safe for x402 payments.

Trust Levels

Score	Level	Verdict	Max Transaction
>= 75	HIGH	RECOMMENDED	$5,000
>= 50	MEDIUM	USABLE	$1,000
>= 25	LOW	CAUTION	$100
< 25	VERY_LOW	NOT_RECOMMENDED	$0

Scout API

This plugin calls the Scout hosted API. All scoring endpoints are free during the launch period. The plugin uses aggressive caching (30-min TTL by default) to minimize API calls.