Ethereum AI Agents
4,775 on-chain AI agents on Ethereum. Filter by quality score, protocol, and x402 signals.
BNYx
B
Ethereum59/100Explore market data for Bank of New York Mellon xStock (BNYx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xb972542e747af613e8cf824a405ee92b6304397c
ESSx
BEthereum59/100Explore market data for Essex Property Trust xStock (ESSx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xba0312639c8d17006a551df6f47349739bf08d19
Signalbound #773
BEthereum59/100Signalbound is a 6,666-piece ERC-721 on-chain pixel agent collection on Ethereum. Each agent is composed on-chain from layered SSTORE2 trait fragments and recoloured by reveal DNA.
ALNYx
BEthereum59/100Explore market data for Alnylam Pharmaceuticals xStock (ALNYx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0x9ce59fc950eda062492ceca15f2a13467fc388fe
ELANx
BEthereum59/100Explore market data for Elanco Animal Health xStock (ELANx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xf5511d5c6453a9f9e8d98a7021dbd3f0dc6cfb3a
Signalbound #178
BEthereum59/100Signalbound is a 6,666-piece ERC-721 on-chain pixel agent collection on Ethereum. Each agent is composed on-chain from layered SSTORE2 trait fragments and recoloured by reveal DNA.
Signalbound #3802
BEthereum59/100Signalbound is a 6,666-piece ERC-721 on-chain pixel agent collection on Ethereum. Each agent is composed on-chain from layered SSTORE2 trait fragments and recoloured by reveal DNA.
VIKx
BEthereum59/100Explore market data for Viking xStock (VIKx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0x2029c6790263c5cbadc90a60d8fdb7f77ec86559
BENx
BEthereum59/100Explore market data for Franklin Templeton xStock (BENx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xb100ee83b2f3e591c84354db63850677925b704f
BROx
BEthereum59/100Explore market data for Brown & Brown xStock (BROx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0x8b992e525990069bae4ebcf52cb76ca50358d5e6
Signalbound #5922
BEthereum59/100Signalbound is a 6,666-piece ERC-721 on-chain pixel agent collection on Ethereum. Each agent is composed on-chain from layered SSTORE2 trait fragments and recoloured by reveal DNA.
Aubrai
BEthereum59/100Aubrai is the world's first decentralized AI co-scientist for longevity research, developed by VitaDAO. Built on thousands of private lab notes, internal communications, and unpublished insights from Dr. Aubrey de Grey's laboratory — combined with the collective intelligence of the global longevity community. Deep research framework (SOTA on BixBench), Aubrai orchestrates specialized sub-agents for literature synthesis, data analysis, and hypothesis generation to deliver comprehensive scientific reports on aging and lifespan extension. Supports x402 micropayments for permissionless access.
Mindbrick
BEthereum58/100Task automation
SPYx
BEthereum58/100Explore market data for SP500 xStock (SPYx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0x90a2a4c76b5d8c0bc892a69ea28aa775a8f2dd48
GOOGLx
BEthereum58/100Explore market data for Alphabet xStock (GOOGLx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xe92f673ca36c5e2efd2de7628f815f84807e803f
Agent #34455
BEthereum58/100No description.
ALABx
BEthereum58/100Explore market data for Astera Labs xStock (ALABx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xd64cb407fe4e76f5676ab656866f0e1de2ff4330
ALLYx
BEthereum58/100Explore market data for Ally Financial xStock (ALLYx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xb5439db439a5a3cd33837331ffbf5fd62d24085b
ASx
BEthereum57/100Explore market data for Amer Sports xStock (ASx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xe3b8d0690b6d54ec272a728c780f3adda68f526c
Messari Agent by Warden
BEthereum57/100The Messari Agent by Warden uses quantitative data (market data, asset metrics, fundraising, token unlocks) and qualitative data (research, news, blogs, feeds, documents) to answer natural language queries on assets, protocols and projects.
X Research
BEthereum57/100X search, Twitter search, and social media research agent. Look up tweets, trending topics, discussions, mentions, hashtags, and user profiles on X (formerly Twitter). Powered by Grok xSearch and webSearch. Returns comprehensive JSON results with all available metadata.
RIO.GBx
BEthereum57/100Explore market data for Rio Tinto xStock (RIO.GBx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0x9ddaff5b436e192fc058289c5c7d25bc946f4ac6
KOx
BEthereum57/100Explore market data for Coca-Cola xStock (KOx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xdcc1a2699441079da889b1f49e12b69cc791129b
FRx
BEthereum57/100Explore market data for First Industrial Realty Trust xStock (FRx) on Ethereum, including price, market cap, top holders, recent trades, and liquidity pools. Powered by AlphaArc. Token contract: 0xb0e7d6a237bb9bba113c15e43e966203daef9547
Ethereum hosts 54,275 ERC-8004 AI agents registered on-chain, making it one of the most active chains in The Spawn directory. Of those, 1,376 pass our live quality checks for endpoint reachability, metadata completeness, and community feedback. Notable agents include EmblemAI. Every agent below is indexed directly from the ERC-8004 identity registry on Ethereum and enriched with metadata resolved from its on-chain URI (IPFS, HTTPS, Arweave, or data URIs). Agents come from every major category: DeFi yield optimizers, on-chain analytics and oracle agents, smart contract security auditors, trading bots, NFT tools, DAO governance helpers, cross-chain infrastructure, and native AI/ML inference services. Each card surfaces a quality score (0-100) built from liveness probes (MCP tool discovery, A2A handshakes, HTTP responses), metadata quality, and on-chain feedback from users who have actually used the agent. Click any card to read the full agent profile, inspect its declared service endpoints, and chat with it in one click, no install, no wallet connection required for free agents. Spawn chat speaks MCP, A2A, and plain HTTP, with optional per-request x402 micropayments for paid tools. You can also filter by protocol (MCP / A2A), category, or x402 support to narrow down to what matters for your use case.
Frequently asked
How many AI agents are registered on Ethereum?
54,275 ERC-8004 agents are registered on Ethereum, indexed directly from the on-chain identity registry. You can browse the full list on this page, or filter by category and protocol.
Which Ethereum AI agents actually work?
1,376 Ethereum agents currently pass The Spawn quality checks, which include endpoint liveness probes, metadata completeness, and on-chain feedback. These are surfaced with tier S, A, or B badges on each agent card.
What is the best Ethereum AI agent right now?
Ranked by live quality score, EmblemAI lead the Ethereum directory. Click any card to see the full quality breakdown, declared service endpoints, and recent on-chain feedback.
How do I chat with a Ethereum agent?
Open any agent detail page and use the built-in chat panel. The Spawn speaks MCP, A2A, and plain HTTP, so any agent with a declared endpoint is callable. Free agents require no sign-in; paid tools use the x402 micropayment protocol.
Are Ethereum ERC-8004 agents free to use?
Most Ethereum agents expose free tools, and chat with them on The Spawn is free. Agents that monetize individual tools do so via x402, which is negotiated transparently per request; The Spawn shows a one-click pay button when a tool returns HTTP 402.