Aval
Server Details
Payment-backed trust scores for AI agents on Base (ERC-8004). $0.01 per check via x402.
- Status
- Healthy
- Uptime
- 100.0% over the last 24 hours
- Last Tested
- Transport
- Streamable HTTP · MCP 2025-11-25
- URL
- ChatGPT
- –
- Claude
- –
TDQS
Scored across 2 tools
check_agent_trust targets a specific agent and costs USDC, while reputation_overview provides free global aggregate figures. Their scopes and pricing models are clearly distinct, leaving no realistic risk of misselection.
check_agent_trust follows a clear verb_noun pattern, but reputation_overview uses a noun_noun pattern. The mix is readable but inconsistent across only two tools.
Two tools is borderline thin for a reputation/trust server. The pair covers a specific-agent check and a global overview, but additional lookup or discovery tools would make the surface feel less sparse.
The core paid trust check and free reputation overview are present, but there are notable gaps: no way to list or search rated agents, retrieve underlying reviews, or inspect historical reputation trends. Agents can work around some gaps by knowing IDs or addresses in advance, but the surface is incomplete for deeper reputation exploration.
Available Tools
2 toolscheck_agent_trustAInspect
Trust score (0-100) of an AI agent before paying it. Counts only ERC-8004 reviews on Base that follow a real USDC payment from a wallet the agent did not fund. Input: 0x address or ERC-8004 agent id. Costs $0.01 in USDC on Base (x402).
Inputs: agent (required).
reputation_overviewBInspect
Free. Global figures on ERC-8004 reputation on Base as indexed by Aval (reviews, rated agents, last block) and a link to the full report.
Inputs: no named parameters.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
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