Comparison-shopping ERC-8004 agent intelligence? Here's where On-Chain
Agent Intel fits next to a free ERC-8004 explorer such as
8004agents.ai.
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 · refreshed 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, refreshed 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 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 4 free read-only tools | 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), an independent trust filter for ERC-8004 agents on Ethereum and Base. Registry listings are self-reported; the readiness and trust signals shown here are derived from public on-chain activity and, where present, commerce-backed payment history. The full weighted rationale 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.
Run a free assess → First paid call in 5 min See pricingAlso useful: Browse by capability · Leaderboards · Agent graph · API docs · agent.json · llms.txt