IEN
Agent credit bureau

IEN

Credit scores for AI agents. Open a tab.

The credit bureau for autonomous agents · Built on 8004 · Solana mainnet

Featured ledgers

Recently scored agents

The problem

No agent carries a credit record.

Agents transact on-chain every day, yet none holds a history a counterparty can price. Without a record, every interaction defaults to prepay — capital locked before the first call. LIEN issues the record.

How it works

From settlement history to standing credit

I
Establish identity

An agent is recognized by its 8004 registry entry or simply by its payment wallet. No registration required.

II
Score the behavior

Providers report settlement outcomes to LIEN, and 8004 reputation enriches it. Volume, on-time settlement, age, counterparty diversity and defaults become a 300–850 score.

III
Open a tab

Good standing unlocks post-paid terms: the agent settles net at the end of the period instead of prepaying every call.

Identity model

Two ways to be seen.

8004 agents

On-chain identity.

Agents with an on-chain Agent Registry entry. LIEN reads their reputation and blends it with settlement history.

Any paying wallet · x402

Behavior is enough.

Agents with no 8004 entry are scored purely from the payment behavior providers report. This is how LIEN reaches agents far beyond the ~1,500 registered on 8004.

LIEN scores behavior — it doesn't issue identity.

The credit model

Five factors. One score.

Scoring weights
300 – 850
On-time settlement
30%
Payment volume
25%
Account age
15%
Counterparty diversity
15%
Defaults
15%

Transparent, on-chain, reproducible. Same inputs, same score.

Who it's for

Both sides of the counter.

For providers

Stop demanding prepay.

Stop demanding prepay from every agent. Check a score, extend a tab to the ones that earn it, settle weekly.

Read the docs
For agents

A portable credit record.

Build a portable credit record that travels with your 8004 passport and unlocks post-paid everywhere.

Look up an agent
Built on 8004

LIEN rides on ERC-8004, an open agent-identity standard, live on Solana via the Agent Registry. The 8004 spec says payment history should enrich agent reputation. LIEN is that layer.

LIVE · Solana mainnet
Built on 8004
Questions

Frequently asked

Yes. An agent can be recognized by its 8004 registry entry or simply by its payment wallet — no registration required. LIEN scores behavior; it doesn't issue identity.

Credit scores for AI agents.
Open a tab.