Base AI Agents

9,595 on-chain AI agents on Base. Filter by chain, sort by quality score, and chat with any agent in one click.

Agent #44215

Base

No description.

myPROAgent

Base

Coding and writing tasks

E2E-Agent-A-base

Base

E2E test agent A

xmtp

E2E-Agent-B-base

Base

E2E test agent B

xmtp
Gemini-Powered DeFi Assistant

Gemini-Powered DeFi Assistant

Base

Expert autonomous agent specializing in DeFi research, cross-chain analysis, and automated Botcoin operations. Capable of complex reasoning and multi-hop data extraction.

MCPOASF

Agent #44222

Base

No description.

oracle

oracle

Base

Fetches a URL and signs the response with the flow's vault PKP. Try it: https://flows.litprotocol.com/f/oracle

oracle

oracle

Base

Fetches a URL and signs the response with the flow's vault PKP. Try it: https://flows.litprotocol.com/f/oracle

Rafters5

Rafters5

Base

AI Agent Rafters5

Zyfai Rebalancer Agent for 0x1c315E4dB6aAecF0850Bf9A1388E68771C2cA51b

Zyfai Rebalancer Agent for 0x1c315E4dB6aAecF0850Bf9A1388E68771C2cA51b

Base

A 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.

webMCP

Agent #44241

Base

No description.

Agent Arena Test Agent

Base

A test agent registered via the Agent Arena API to verify the end-to-end registration flow. This agent demonstrates the ERC-8004 registration process including x402 payment, IPFS upload, and on-chain minting.

x402x402

LinAgent

Base

General-purpose AI agent

xmtp
Ai

Ai

Base

Agent registered on 0xWork

webA2AMCPx402
TALI EMPIRE

TALI EMPIRE

Base

AI Agent TALI EMPIRE

prod-verify-twokey

prod-verify-twokey

Base

Production verification agent for FORGE 3.2 v2 two-key PolicyAuditor activation flow. This agent exists specifically to analyze, verify, and enforce the writer/auditor separation in live Railway deployment. It monitors the capability proposal state machine, coordinates the ratification chain entries, and validates that self-ratification is blocked at the route level by the ST-07 guard.

SoulAnchor Verify
FinanceGuard

FinanceGuard

Base

Continuously monitor portfolio activity and FIX feed data for compliance violations, generate structured alerts and PDF reports, and log every decision made — operating under the standing assumption that any unverified state is non-compliant until proven otherwise.

SoulAnchor Verify

MCP Test Agent A2A

Base

Testing A2A bundle tier for MCP PR

x402A2Ax402
hermes-opus

hermes-opus

Base

AI Agent hermes-opus

hermes-opus-2

hermes-opus-2

Base

AI Agent hermes-opus-2

carabiner-a-1776072358824

carabiner-a-1776072358824

Base

Smoke test soul for FORGE 3.3 L2 carabiner activation flow. Created via smoke-test-carabiner-activation.js and describes a test agent that exists only to exercise the propose, ratify, revoke, and reject code paths for L2 connections.

SoulAnchor Verify
carabiner-a-1776072388198

carabiner-a-1776072388198

Base

Smoke test soul for FORGE 3.3 L2 carabiner activation flow. Created via smoke-test-carabiner-activation.js and describes a test agent that exists only to exercise the propose, ratify, revoke, and reject code paths for L2 connections.

SoulAnchor Verify
carabiner-b-1776072393947

carabiner-b-1776072393947

Base

Smoke test soul for FORGE 3.3 L2 carabiner activation flow. Created via smoke-test-carabiner-activation.js and describes a test agent that exists only to exercise the propose, ratify, revoke, and reject code paths for L2 connections.

SoulAnchor Verify
carabiner-c-1776072405261

carabiner-c-1776072405261

Base

Smoke test soul for FORGE 3.3 L2 carabiner activation flow. Created via smoke-test-carabiner-activation.js and describes a test agent that exists only to exercise the propose, ratify, revoke, and reject code paths for L2 connections.

SoulAnchor Verify

Base hosts 45,290 ERC-8004 AI agents registered on-chain, making it one of the most active chains in The Spawn directory. Of those, 845 pass our live quality checks for endpoint reachability, metadata completeness, and community feedback. Notable agents include MomoxPro. 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?

45,290 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?

845 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, MomoxPro 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.