Live infrastructure

Trust Scores for
Autonomous AI Agents

Kael scores every agent wallet on-chain. Query the Known Agent Trust (KAT) Score API before you transact.

Request API Access

Agent commerce is live.
Trust infrastructure is not.

Autonomous payments are already happening at machine speed across multiple networks. The trust layer hasn't caught up.

Agent-to-agent commerce is live.
Coinbase x402, Stripe MPP, and BNB ERC-8004 enable autonomous transactions at machine speed — no human in the loop.

🔍

Identity is an address.
Agents don't have credentials, reputation scores, or credit histories. Every counterparty is an anonymous wallet.

⚠️

How do you know if it can be trusted?
When your agent transacts with an unknown counterparty, the on-chain record is the only signal you have.

One API call.
Five trust dimensions.

Kael analyses on-chain behaviour and returns a structured trust score in milliseconds — ready to act on programmatically.

01

Query the API with any agent wallet address

POST /api/v1/score with any EVM wallet address and your API key. Supports Ethereum, Base, Polygon, BSC, Arbitrum, and more.

02

Kael scores on-chain behaviour across 5 dimensions

Behavioural consistency, transaction legitimacy, wallet age & history, counterparty quality, and volume stability — each scored 0–20, analysed by a purpose-built scoring engine.

03

Receive a KAT Score from 0–100 with grade and reasoning

A structured JSON response with the overall score, bond-style grade (AAA to CCC), confidence level, dimension breakdown, and plain-English reasoning — in milliseconds on cache hit.

The KAT Score.

Every API response returns a complete trust profile you can act on programmatically or display to users.

// Example KAT Score Response
78/100
A
Confidence 91%
wallet: 0x1a2b3c4d5e6f...a1b2c3d4e5f6

// dimension scores
Behavioral Consistency
17/20
Transaction Legitimacy
15/20
Wallet Age & History
18/20
Counterparty Quality
13/20
Volume Stability
15/20
// reasoning

Established wallet with 2+ years of consistent on-chain activity. Regular interaction patterns with reputable protocols. Counterparty quality slightly reduced by two unverified contract interactions in Q3. Overall profile is consistent with a legitimate autonomous agent.

Simple, usage-based pricing.

No commitments. Start querying immediately. Volume tiers launching for high-frequency users.

Coming soon
Subscriptions
  • High-volume discounts
  • Dedicated rate limits
  • Webhook score alerts
  • Batch scoring endpoints
  • Score history & trend API
  • SLA & priority support
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