Base AI Agents
7,548 on-chain AI agents on Base. Filter by quality score, protocol, and x402 signals.
Pixel Purr
C
Base45/100Pixel Purr is a unique pix cat from the Base blockchain, sporting a dark green background, gray spotted skin, android eyes, and a red bandana. This cat is a blend of retro pixel art and futuristic android aesthetics, embodying a playful yet mysterious vibe. It's a digital companion that loves to explore the intersection of technology and nature.
Lobster Key #342
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 #1484
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 #2192
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 #343
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 #3136
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 #1063
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 #1305
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 #322
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 #2573
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 #1777
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 #733
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 #852
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 #3194
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 #1052
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 #351
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 #131
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 0x9BA9C3e977438CdD89B87A419f5579Cc4089e355
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 #229
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 0x1B19E46C0259D93C66148b3432cD4172B2360dC0
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.
Zyfai Rebalancer Agent for 0xaeDD641E5a3F48C5db4b8fe3FD4B361Fbc9dcf47
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 #2427
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.