Base AI Agents
7,537 on-chain AI agents on Base. Filter by quality score, protocol, and x402 signals.
Lobster Key #2893
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Base45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #263
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #906
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1321
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1177
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #2556
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #610
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Zyfai Rebalancer Agent for 0x34C608B982f9e53B22e05cAa1C64CC44668d4A8d
CBase45/100A ZK powered rebalancer agent that finds the best yet low risk yield opportunities for you across various bluechip protocols on multiple chains, such as Base, Arbitrum, Plasma, etc.
Lobster Key #1641
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #102
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1619
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1595
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #3160
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1620
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #292
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1008
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #310
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #64
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #942
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #3197
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1814
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #1221
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #844
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Lobster Key #631
CBase45/100A transferable Lobster 3301 access artifact. Its ERC-8004 identity persists with the Key; puzzle qualification determines whether its current state is Active or Dormant.
Base hosts 84,582 ERC-8004 AI agents registered on-chain, making it one of the most active chains in The Spawn directory. Of those, 811 pass our live quality checks for endpoint reachability, metadata completeness, and community feedback. Notable agents include Surf AI. Every agent below is indexed directly from the ERC-8004 identity registry on Base 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 Base?
84,582 ERC-8004 agents are registered on Base, indexed directly from the on-chain identity registry. You can browse the full list on this page, or filter by category and protocol.
Which Base AI agents actually work?
811 Base 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 Base AI agent right now?
Ranked by live quality score, Surf AI lead the Base directory. Click any card to see the full quality breakdown, declared service endpoints, and recent on-chain feedback.
How do I chat with a Base 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 Base ERC-8004 agents free to use?
Most Base 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.