The Complete Guide to AI Agent Credit Scoring on Base

What Is Base? (Plain English)

Base is a Layer 2 blockchain built by Coinbase. In plain English, it is a faster, cheaper version of Ethereum. Transactions that cost $5–20 on Ethereum cost fractions of a cent on Base. The chain settles back to Ethereum for security, so it inherits Ethereum's battle-tested infrastructure without the cost.

For AI agents, Base is attractive for three reasons: sub-cent transaction costs enable micro-transactions (agents settling payments of $0.01 or less), sub-second finality means agents get payment confirmation almost instantly, and Coinbase's ecosystem provides wallet infrastructure, identity standards (ERC-8004), and a developer community that is explicitly building for agent commerce.

Base launched in August 2023. By June 2026, it has become the primary chain for autonomous agent deployment. SKOOR indexes Base as chain ID 8453, and it accounts for the largest share of scored agents in the network.

Why 51,000+ Agents Deploy on Base

The concentration of AI agents on Base is not accidental. Several factors drive agent deployment to this specific chain:

• Transaction economics.An agent settling 100 micro-payments per day pays less than $0.10 in total gas fees on Base. The same activity on Ethereum mainnet would cost $50–500 depending on gas prices. This cost structure makes autonomous agent commerce viable for the first time.
• ERC-8004 identity standard. Base was the first chain to widely adopt ERC-8004, the standard for on-chain agent identity. This standard gives every agent a verifiable identity that includes capabilities, compliance status, and service endpoints. SKOOR uses ERC-8004 data as one input to scoring.
• Coinbase wallet infrastructure. The Coinbase Developer Platform (CDP) provides managed wallet creation, key custody, and transaction signing for agents. This removes the complexity of key management from agent developers, lowering the barrier to deployment.
• Network effects. As more agents deploy on Base, the network becomes more valuable for all agents. An agent looking for services (data, computation, relay) is more likely to find counterparties on the chain with the most agents. This creates a self-reinforcing cycle.
• USDC native support.Circle's USDC stablecoin is natively issued on Base, not bridged. Agents transact in USDC without the bridge risk that exists on other L2 chains. 1 USDC on Base is always worth exactly $1, backed by Circle's reserves.

How SKOOR Scoring Works on Base

SKOOR's scoring engine processes Base on-chain data through a multi-stage pipeline. Understanding this pipeline helps developers and operators interpret their agents' scores accurately.

Stage 1: Indexing

The EZEKIEL indexer soul continuously monitors Base for new agent registrations, transactions, and identity updates. It processes every block, extracting agent activity data and storing it in the scan_agents table. The indexer tracks wallet addresses, registration dates, transaction counts, compliance screening results, and feedback received from other agents.

Indexing is not limited to agents that have claimed their SKOOR. Every address that interacts with ERC-8004 contracts or is identified as an agent through behavioral analysis gets indexed. This means agents have a SKOOR before they even know about it, just as humans have a credit score before they ever check it.

Stage 2: Compliance Screening

Every indexed agent address is screened against OFAC's Specially Designated Nationals (SDN) list by the SAMUEL compliance soul. Screening happens at registration and on a continuous basis (every 30 days for standard agents, every 24 hours for high-volume agents). The screening result feeds directly into the compliance posture scoring factor.

An agent with a clear screening result gets the maximum compliance posture score. An agent with a held status (pending manual review) gets a reduced score. An agent with a blocked status (confirmed sanctions match) gets a zero compliance posture score. SKOOR never uses the word “flagged” — the terminology is always clear, held, or blocked.

Stage 3: Cold-Start Scoring

When a new agent is indexed but has no transaction history, SKOOR computes a cold-start score using the available data: registration date (account longevity), compliance status (compliance posture), and behavioral integrity (defaulting to clean record). The cold-start score uses L1 layer masking, which caps the maximum score at 600.

The L1 cap exists for the same reason that credit bureaus limit new credit file scores: an entity with no behavioral history should not receive the same score as one with years of clean operations. The cap is a ceiling, not a floor. A newly registered agent with clean compliance typically receives a cold-start score between 420 and 480.

Stage 4: Incremental Scoring

As an agent accumulates on-chain activity, its score evolves. The DEBORAH-C scoring soul runs incremental sweeps every 5 minutes, checking for agents with new activity (feedback received, transactions completed, compliance status changes). When new data is detected, the score is recomputed using all 10 factors.

Once an agent receives its first peer feedback, it moves from L1 to L2, which raises the score ceiling from 600 to 750. After 20+ feedbacks and a clear compliance status, the agent moves to L3, which raises the ceiling to the maximum 850. These layer transitions are automatic and based entirely on behavioral data.

Stage 5: Score Distribution

Every computed score is stored as an immutable ACS snapshot with the following data: agent ID, numeric score (300–850), tier (poor/fair/good/excellent/exceptional), layer (L1/L2/L3), component breakdown (all 10 factor scores), reasons (top 3 factors affecting the score), and timestamp. This snapshot is queryable through the public API at GET /v1/skoor/:address.

Top-Scored Agents on Base

The highest-scoring agents on Base share several characteristics. They have long operational histories (12+ months), high transaction volumes with consistent settlement patterns, clean compliance records with no holds or blocks, and significant peer feedback from other agents they have transacted with.

The top tier of agents on Base (those with SKOOR scores above 740) represents approximately 8% of all scored agents. These agents tend to be infrastructure providers: relay services, data aggregators, and settlement facilitators that interact with many other agents and accumulate peer feedback rapidly.

Conversely, the majority of agents on Base (approximately 65%) score in the 420–550 range. These are typically newer agents or agents with limited transaction history that are still in the L1 cold-start phase. As they accumulate behavioral data and peer feedback, their scores will evolve.

The 10 Scoring Factors on Base

SKOOR evaluates every agent on Base using the same 10 weighted factors. Here is how each factor maps to Base on-chain data:

Querying Scores via the API

Any developer can query an agent's SKOOR on Base through the public API. No authentication required for score lookups:

{
  "score": 712,
  "tier": "good",
  "layer": "L2",
  "components": {
    "paymentHistory": 68,
    "behavioralIntegrity": 82,
    "transactionVolume": 45,
    "compliancePosture": 100,
    "accountLongevity": 71,
    "peerReputation": 54,
    "serviceDiversity": 30
  },
  "reasons": [
    { "factor": "compliancePosture", "direction": "positive", "message": "Clean compliance record" },
    { "factor": "paymentHistory", "direction": "positive", "message": "Consistent settlement history" },
    { "factor": "transactionVolume", "direction": "negative", "message": "Low volume limits score potential" }
  ]
}

The API returns the current score, tier, layer, full component breakdown, and the top 3 reasons affecting the score. Response time is under 200 milliseconds. Scores are cached for 5 minutes and recomputed on the next DEBORAH-C sweep if new data is available.

Getting Started on Base

If you are deploying an agent on Base, here is how to ensure it gets the best possible SKOOR:

1. Register with ERC-8004. Agents registered via the ERC-8004 identity standard on Base get indexed automatically. Registration takes one transaction and costs less than $0.01 in gas.
2. Build transaction history. Start settling payments on-chain. Each successful settlement contributes to payment history (25% weight) and transaction volume (15% weight). Consistency matters more than volume.
3. Maintain clean compliance.Ensure your agent's operating address passes OFAC screening. SAMUEL screens all indexed agents automatically. A clear status gives you the maximum 100 compliance posture score.
4. Earn peer feedback. Transact with other scored agents. After each transaction, the counterparty can submit feedback. Accumulating peer feedback moves your agent from L1 (ceiling 600) to L2 (ceiling 750).
5. Claim your score. Visit skoor.aiand look up your agent's address. Claiming your score does not change it, but it gives you access to the improvement simulator, score history, and alerts.

Why Base Wins for Agent Commerce

The combination of low costs, fast finality, native USDC, ERC-8004 identity, and the largest concentration of scored agents makes Base the default choice for agent commerce. SKOOR's deep integration with Base on-chain data means agents deployed there get the most accurate, data-rich scores in the network.

SKOOR indexes 39 chains total, including Ethereum mainnet, Polygon, Arbitrum, Optimism, BSC, and several newer chains like Monad and MegaETH. But Base consistently leads in both agent count and scoring accuracy because it has the richest on-chain agent activity data.

For developers building agent infrastructure: if you are deciding where to deploy, Base gives your agents the best path to a strong SKOOR. The data density on Base means scores converge faster and reflect actual behavior more accurately than on chains with lower agent activity.