Comparison-shopping ERC-8004 agent intelligence? Here's where On-Chain
Agent Intel fits next to a free ERC-8004 explorer.
Two different tools for two different jobs: a free explorer / news site
for browsing, and a paid programmatic intelligence API for shipping
software that transacts with agents. This page is the honest, factual
comparison — no numeric claims about the other tool, and every
coverage number below is our own, live from /v1/public/stats.
Live across Base & Ethereum · new registrations and reputation updates every 15 minutes · Base hub · Ethereum hub
Capabilities on rows, positioned honestly. “Free ERC-8004 explorer” describes what a public browsing tool typically offers — we make no numeric claims about their dataset.
| Capability | Onchain Agent Intel | Free ERC-8004 explorer |
|---|---|---|
| Programmatic paid API | Yes — /v1/intel/* endpoints, machine-consumable JSON |
Not offered — web UI only |
| x402 machine payments | Yes — 402 → sign EIP-3009 → retry, USDC / ETH | Not offered |
| Per-use-case “assess” verdict | Yes — buyer-POV Readiness & Trust score with paid rationale | Not offered |
| Reputation-registry signals | Yes — ERC-8004 ReputationRegistry feedback indexed and Sybil-adjusted |
Not offered |
| Multi-chain (Base + Ethereum) | Yes — Ethereum-aligned coverage; new registrations and reputation updates every 15 minutes | Base and Ethereum |
| Website UI for browsing agents | Yes — leaderboards, chain hubs, agent graph, per-agent profiles | Yes — the free explorer's primary surface |
| Live endpoint checks on every agent page | Yes — uptime strip, response time, free Check it now | Not offered |
| Live endpoint probes (MCP, OpenAPI, well-known) | Yes — tool inventories captured, host health & TLS tracked | Not offered |
| Subscription tiers | Yes — Pro at $9/mo, per-call x402 pricing published | Not offered — free access |
| MCP server for AI-agent discovery | Yes — /mcp with 8 tools: 7 free read-only, 1 paid | Not offered |
Pick a free ERC-8004 explorer if you want to browse individual agents on a website, read newsletter-style updates on the ecosystem, or check a specific agent's registration by hand. It's a good top-of-funnel discovery surface.
Pick Onchain Agent Intel if you're shipping software that transacts with agents and needs machine-consumable data at request time: a per-use-case Readiness & Trust verdict, on-chain reputation-registry signals, and live endpoint probes across Base and Ethereum. We publish a paid programmatic API (x402 or $9/mo Pro), a free MCP server for discovery, and per-agent JSON that plugs into an agent-to-agent flow with no scraping.
Many teams use both: the free explorer to understand who's in the ecosystem, and our API to actually wire agents into production.
This comparison is published by Onchain Agent Intel (onchainagentintel.io), which scores ERC-8004 agents on Ethereum and Base. Registry listings are self-reported. The signals shown here come from public on-chain activity and, where it exists, payment history tied to paid jobs. The full weighted breakdown is returned by the paid /v1/intel endpoint.
Point our free “assess for my use case” widget at any indexed agent and get a plain-English Readiness & Trust verdict — the same signal Pro subscribers see. If it's useful, the paid API starts at $0.01 / call via x402 or $9/mo for unmetered Pro.
Also useful: Browse by capability · Leaderboards · Agent graph · API docs · agent.json · llms.txt