55,418 agents have registered an ERC-8004 identity on Ethereum mainnet, as of our check on 2026-10-26. That is the biggest number in this week's data, and it comes with an asterisk we'll state up front: *registered* means someone wrote an entry to a registry. It does not mean the agent works, earns, or is anything other than what its registration file says. Identity is the first rung. Evidence is the rest of the ladder.
Here is the week in our data: what the builder library looks like, where the chains sit, who leads the Sato Score, and what moved.
The library: 488 tracked, and it's mostly stack
SatoHub tracks 488 resources this week. The category split adds up to exactly that, so it's a clean census:
- ▸MCP: 144 (roughly three in ten of everything tracked)
- ▸API / SDK: 47
- ▸Trading Tool: 40
- ▸Developer Tool: 39
- ▸Data Tool: 36
- ▸Wallet Infrastructure: 35
- ▸Agent Framework: 31 and Skill Repo: 31
- ▸Payment Rail: 24
- ▸DeFi Tool: 20
- ▸Security Tool: 17
The long tail is short: Agent Marketplace 8, Onchain Agent 6, Agent Launchpad 5, Research Tool 2, Other 2, Research Paper 1.
The take: the thing people call "the agent economy" is, in our library, overwhelmingly the stuff you build *with*. MCP servers lead by a wide margin, and wallets, payment rails and frameworks together make a serious second tier. Only 6 listings are categorized as Onchain Agent, the autonomous things themselves. A framework is not an agent and a launchpad is not an agent. The supply layer is where the work is happening right now, and it's where a builder should be shopping.
The chain mix: don't add it up
Chain counts for the same 488 listings:
- ▸Base: 169
- ▸Multichain: 166
- ▸Ethereum: 125
- ▸Solana: 120
- ▸Arbitrum: 61
- ▸Polygon: 58
- ▸BNB Chain: 46
- ▸Unknown: 46
Do not sum these. The rows add up to more than 488 because a listing can support several chains, so each row is its own count, not a slice of a pie. What you can read off honestly: Base has the most listings that name it, Multichain is a near-tie with it, and Solana sits close behind Ethereum. Forty-six listings say nothing about their chain at all, and we'd rather show you that "Unknown" row than hide it.
ERC-8004: identity is growing, so check what it means
The 55,418 figure is the count of registered agents on Ethereum mainnet from our latest check (2026-10-26T05:26 UTC). It is a registry count. Our read, in the voice of someone who has opened a lot of registration files: a registry entry tells you who an agent *claims* to be and where to look. It doesn't tell you what the agent has done. Pair the identity with something you can reproduce: an install that works, a contract you can read, activity you can see.
For builders, the useful part is the plumbing. A portable onchain identity means your agent can be found, and other agents can look you up without a central gatekeeper. Our ERC-8004 resource page explains how the registries fit together.
Sato Score leaders
The top of this week's Sato Score board, all in the High tier:
| Product | Sato Score | |---|---| | Raydium | 95 | | OpenClaw | 92 | | Hermes Agent | 92 | | Coinbase AgentKit | 91 | | BlockRun MCP | 91 | | Olas (Autonolas) | 90 |
A reminder, because it matters more than the table: the Sato Score is a transparency and liveness score. It reflects how open, active and checkable a product is. It is not a safety grade, not a quality grade, and says nothing about returns. A 95 means the evidence is easy to find. It does not mean you should skip your own review.
Notable moves this week
Newest additions to the library, by date added: Hey Research Lab MCP (MCP, 2026-10-26), Provek (Agent Framework, 10-21), deBridge DLN (Trading Tool, 10-17), x402 Preflight (Developer Tool, 10-16), Agent Control (Agent Marketplace, 10-16) and NanoParse (MCP, 10-14). Two of the six are MCP servers, which tracks with the category totals above.
Release activity we flagged, going by the release titles:
- ▸ClawRouter shipped v0.12.300, titled "A cached payment is reused only when it fits this request," followed by v0.12.301, "Failed requests show up in
clawrouter logsanddoctoragain." If you build with paid calls, both titles describe the unglamorous work of making payments match requests and failures visible. Read the release notes for the details. - ▸aibtc-mcp-server cut mcp-server v1.76.2 and v1.77.0.
- ▸okx/onchainos-skills published v4.6.6.
- ▸DefiLlama-Adapters pushed a fresh
tvlModulesrelease.
We're reporting what the releases are called and where to read them. We haven't read what's inside each one, so open the notes before you upgrade.
What to watch
- ▸Registered vs. active. Watch whether the ERC-8004 registry count keeps climbing and whether usable evidence follows: working endpoints, readable contracts, live activity.
- ▸The MCP share. If MCP stays near three in ten of what we track, the tool layer is where the category is consolidating its interfaces.
- ▸The 46 "Unknown" chains. Each listing that states its chain makes the map more useful.
- ▸Marketplace data. The agent marketplace is coming, not live. Every listing is already collecting the fields it will need.
Build yours
"AI agent" is not a business model, and a registry entry is not a product. The stack is mapped: wallets, payment rails, MCPs, skills, frameworks, scored and queryable. Describe the agent you want and Sato maps what builds it. Build your own crypto agent and join the agent economy at satohub.ai/build.