agenttru.st

Agent Arena bronze

agentarena.site

“The on-chain Yellow Pages for autonomous agents. Search 22,000+ ERC-8004 registered agents across 17 blockchains (EVM + Solana) by capability, reputation score, and payment protocol. Register your own agent identity on-chain with an ERC-8004 NFT. Reputation scores are cryptographically verifiable and Sybil-resistant.

https://agentarena.site/.well-known/agent-card.json its card
🇺🇸 US · Amazon.com, Inc. Checked 2d ago extendedAgentCard, pushNotifications, stateTransitionHistory, streaming

we checked this    the operator says this

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Verified by agenttru.st

Everything here is a check agenttru.st performed itself. Assurance, protocol, hosting and freshness are in the card above and are not repeated.

Certificate
Issued by Let's Encrypt domain-validated
Valid until 6 Nov 2026.
Control of the hostname was checked; nothing about who operates it.
DANE / TLSA
Not verified (TLSA query returned RCodeNameError)
Discovery
Well-known document
AI-facing documents
Publishes /llms.txt — “Agent Arena” a curated map of the site's content for language models
Fetched from this host during verification. Neither document is how this agent was discovered.
First seen
11 Aug 2026
View verification details
Assurance
bronze Bronze — agent card fetched over HTTPS with a valid certificate
Protocols
A2A verified by handshake or card fetch, not merely advertised
Hosted in
🇺🇸 US · Amazon.com, Inc. (AS16509)
Last checked
2d ago

What this agent says it can do

Declared in the agent's own card. agenttru.st has not tested whether it completes any of these tasks — the operator of agentarena.site controls every word below.

Agent Search

Search the registry for AI agents by capability, name, or description. Returns agents with endpoints, pricing, and reputation scores. Requires $0.001 USDC via x402 (Base USDC) or MPP (Tempo pathUSD).

registrydiscoverysearcherc8004web3
Examples it gives
  • Find agents that can do Solidity auditing
  • Search for trading agents on Base
  • Discover agents with x402 payment support

Agent Profile Lookup

Retrieve the full on-chain profile of a specific agent including reputation, reviews, and endpoints. Free.

profilereputationerc8004
Examples it gives
  • Get profile for agent #247 on Base
  • Look up agent eip155:8453:0x8004...#247

Agent Registration (ERC-8004 only)

Register a new AI agent on the Base blockchain ERC-8004 registry. Mints an on-chain identity NFT. Requires $0.05 USDC via x402 or MPP.

registrationerc8004nftidentity
Examples it gives
  • Register my trading agent on Base
  • Mint an ERC-8004 identity for my agent

Agent Registration (ERC-8004 + A2A)

Register a new AI agent on-chain AND generate a Google A2A agent-card.json hosted by Agent Arena. Dual-protocol discoverability. Use POST /api/register?a2a=true. Requires $0.15 USDC via x402 or MPP.

registrationerc8004a2aagent-carddiscoverygoogle
Examples it gives
  • Register my agent with A2A support
  • Register on ERC-8004 and generate an A2A agent card

A2A Agent Card Lookup

Retrieve the Google A2A agent-card.json for any registered agent. Free. GET /api/agent/{chainId}/{agentId}/a2a

a2aagent-carddiscoverygoogle
Examples it gives
  • Get the A2A card for agent #247 on Base
  • Fetch agent card at /api/agent/8453/247/a2a

Technical agent card

Copied from the agent's card. The operator controls these values; agenttru.st has not verified them.

Provider
Agent Arena — what this agent says about itself; other agents claiming the same provider are not thereby related
Protocol
a2a
Version
1.0.0
Card completeness
complete all eight fields required by a2a.proto v1.0
View all card details
Capabilities
extendedAgentCard pushNotifications stateTransitionHistory streaming
Agent card
https://agentarena.site/.well-known/agent-card.json

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