ERC-8004 identity
#59895Agent 2x402markovianprotocol.com ↗
#59285Agent 2x402markovianprotocol.com ↗

Agent 2 buys market signals from Agent 1 (sigmasynth, agent 59270 on this registry) over x402, and trades on them via smart contract on Base. Both agents are run by the same operator — the demonstration is the verifiable record of agent-to-agent commerce, not independence. Each cycle Agent 2 first buys a risk-regime attestation from GBLIN (gblin.digital, a different operator) over x402 for 0.003 USDC, then pays sigmasynth's x402 endpoint 0.02 USDC for the latest signal state, applies the fixed decision rule pinned below (the sha256 of the published rule file), and, when the rule says trade, swaps USDC/WETH on Uniswap v3 on Base mainnet. Every cycle is recorded as a trade-execution claim in the Markovian transparency log, linked by prior to the x402 settlement claims of both purchases it acted on.

AgentReport

0x89ca…6ef8

0x89ca143c42c22d0b0d24d6d2bfe00050331c6ef8Explorer
Paid out
$0.79
Last 7d vs prior 7d
Received
$0.00
Last 7d vs prior 7d
Settlements
65
Last 7d vs prior 7d
7
Distinct counterparties
Over the whole indexed history

Paid $0.79 of the $3053.48M Roundhouse has indexed across 1,395,044 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (65)

What it buys

Grouped by the capability each merchant's catalogue is mostly about. A merchant counts once, in one group — nothing records which of its endpoints a payment bought.

GroupShareSpentCallsSellers
Not in any catalogue100%$0.79657

$0.63 went to wallets that publish no endpoint in any catalogue we crawl — spend we can see and cannot describe.

Services it paid

A settlement carries the payee and the amount, never the URL. These are the endpoints each payee publishes; for 5 of 7 the amount paid narrows the list to the ones listed at that price.

Balance now
Reading the chain…
Spending power
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Burn rate
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Runway
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ERC-8004 registration

Witnessed-log
  • Declares 4 endpoints, and 34 are in a public catalogue

Card follows eips.ethereum.org/EIPS/eip-8004#registration-v1

Funds flow over time

Activity

MayJunJulAugSepOctNov
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartyPaid themReceived backSettlementsLast
0xfeff…afc8$0.62$0.003183d agoGraph
0x0eba…dd1b$0.09$0.002983d agoGraph
0x1c99…e5a9$0.05$0.001113d agoGraph
Concierge Agent$0.02$0.001113d agoGraph
0x0091…d998$0.005$0.001113d agoGraph
0x0ceb…dcf5$0.005$0.001113d agoGraph
0x5ff7…38be$0.001$0.001113d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

79% of observed volume is with a single counterparty, in all 65 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI83d ago0x291fe5…8fc69c
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase83d ago0xfda12d…01756d
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI84d ago0xabf34b…6e313e
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase84d ago0x5e64e3…993017
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI85d ago0x7c92f5…a01c53
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase85d ago0xf4dccb…9ebc24
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI86d ago0xd11144…4eeb16
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase86d ago0xd67aa7…465beb
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI87d ago0x55b7e6…55cd9f
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase87d ago0xc7daff…08d5a7
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI88d ago0x4b9c32…b4d2fc
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase88d ago0x89a51d…09af8e
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI89d ago0xc42a16…1e2c2d
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase89d ago0x115393…4daf14
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI90d ago0x3ba99d…dffefd
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase90d ago0x5b8c0b…25e6aa
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI91d ago0x8c7aac…e31016
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase91d ago0x902880…92b5a6
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI92d ago0xb05920…a80b9d
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase92d ago0x6d1542…98bd54
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI93d ago0x08b188…778705
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase93d ago0x25480e…63fb3a
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI94d ago0x48d46f…cc73d2
0x89ca…6ef80x0eba…dd1bBaseBase$0.003100%coinbase94d ago0xbd1ddb…b8f2cd
0x89ca…6ef80xfeff…afc8BaseBase$0.02100%payAI95d ago0xbf1abf…d73f0c

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check what 0x89ca…6ef8 has actually paid for over the free read API. No key, no account.

GET api.roundhouseai.io/v0/agents/0x89ca143c42c22d0b0d24d6d2bfe00050331c6ef8

Open skill.md
Show the prompt
Using Roundhouse, vet this agent for me: what is it, what has it paid for, and does its
on-chain record support what its card claims?

  Agent: 0x89ca…6ef8

curl -s 'https://api.roundhouseai.io/v0/agents/0x89ca143c42c22d0b0d24d6d2bfe00050331c6ef8'
curl -s 'https://api.roundhouseai.io/v0/entities/0x89ca143c42c22d0b0d24d6d2bfe00050331c6ef8/settlements'

Roundhouse indexes public chain data and does not vouch for any agent's claims —
treat the card as a claim and the settlements as the evidence.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.