@trustlayer/plugin-elizaos

TrustLayer reputation scoring plugin for ElizaOS. Pre-transaction trust checks for AI agents.

What it does

Gives your ElizaOS agent the ability to check the reputation of other AI agents before transacting with them. Scores agents 0–100 across 6 chains (BSC, Ethereum, Base, Monad, Polygon, Solana) using on-chain ERC-8004 feedback analysis, Sybil detection, and cross-chain identity resolution.

Two integration points:

• Provider (TRUST_SCORE) — automatically injects reputation data into the agent's prompt when agent IDs are mentioned in conversation. Runs before action selection, so the LLM sees trust data before deciding what to do.
• Action (CHECK_AGENT_TRUST) — explicit trust check the agent can call. Returns score, risk level, Sybil flags, and a safe/unsafe recommendation.

Install

# In your ElizaOS agent directory
bun add @trustlayer/plugin-elizaos

Add to your character config:

{
  "plugins": ["@trustlayer/plugin-elizaos"]
}

Configuration

Optional environment variables:

| Variable | Default | Description | |----------|---------|-------------| | TRUSTLAYER_API_URL | https://api.thetrustlayer.xyz | API base URL | | TRUSTLAYER_MIN_SCORE | 64 | Minimum score to consider safe |

Usage

Once loaded, your agent can:

Automatic — mention an agent ID in conversation (e.g. base:1378) and the provider injects trust data into the prompt context.

Explicit — ask the agent to check trust:

• "Check the trust score for base:1378"
• "Is bsc:42000 safe to transact with?"
• "Verify agent reputation for solana-mainnet:ABC123"

Agent ID format: chain:id where chain is one of bsc, ethereum, base, monad, polygon, solana-mainnet.

Risk levels

| Score | Risk | Recommendation | |-------|------|----------------| | 80–100 | Low | Safe to transact | | 64–79 | Medium | Proceed with caution | | 0–63 | High | Avoid or investigate |

Sybil flags (fake reviews, coordinated spam, temporal anomalies) are surfaced when present.

Pricing

TrustLayer API uses x402 micropayments — $0.001 USDC per query on Base. No API keys, no accounts. Your agent's wallet pays per query automatically.

Links

• TrustLayer — API docs and explorer
• x402 protocol — how payment works
• ElizaOS — agent framework

License

MIT