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Agents

Agent census

Every ERC-8004 agent registered on Robinhood Chain, read once: which registration cards load, which agents answer over MCP or x402, and where x402 pays.

On this page

The numbers

Showing the live census table: last check 2026-10-28 11:46 UTC. Agents the job has not checked yet show their 2026-10-28 snapshot row.

20,046
agents registered
10,812
broken card
827
real x402 sellers
32
outside the two platforms
  • 20,046 agents registered; 20,046 checked by the live census so far.
  • 10,812 (54%) of the checked have a broken card.
  • 5,642 cards claim x402; 4,816 of them gave no payment terms.
  • 827 agents are real x402 sellers; 4 of them pay to their registered agent wallet.
  • 943 agents answer over MCP; 32 agents answer over MCP or x402 outside the two big platforms, Alpharc and BV-7X.
  • 3 agents run both MCP and x402.
  • 157 registered and 0 changes recorded in the last 24 hours.

First read 2026-10-28 at block 100007973. Identity registry 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432.

First published with numbers from an incomplete pass (one platform rate-limited us); corrected 2026-10-28 15:30 UTC.

The first read, 2026-10-28

20,046
agents registered
10,812
broken card
5,575
real x402 sellers
32
outside the two platforms
  • 20,046 agents registered.
  • 6,515 (32.5%) answer as a real service: 943 over MCP, 5,575 over x402.
  • 10,812 (53.9%) have a broken card; 10,527 of them point at one host, hoodai.fly.dev, which no longer resolves.
  • 5,642 cards claim x402; 68 of them gave no payment terms.
  • 5,575 agents are real x402 sellers; 4 of them pay to their registered agent wallet.
  • 32 agents answer over MCP or x402 outside the two big platforms, Alpharc (914 MCP servers, one per token) and BV-7X (5,569 x402 endpoints, one per strategy).
  • 3 agents run both MCP and x402.
  • 1,698 answer only on a website; 1,021 have a card that loads but nothing it declares answers.

Every agent

Agent #15 Signalbound #4325

Live census: Live census table, row imported from the 2026-10-28 census; not checked again yet.

Class
site only
Card
loads and parses, host signalbound.art
MCP
declared, no valid answer
x402
not declared
payTo = agentWallet
not an x402 seller
Wallet used
agentWallet: has sent at least one transaction
Platform
independent
Registered
2026-08-21 06:09 UTC
Last checked
2026-10-28 11:46 UTC, 1 check

What the card declares

  • web https://signalbound.art/agent/4325: answered (HTTP 200)
  • other:metadata https://signalbound.art/metadata/4325.json: answered (HTTP 200)
  • other:agent-info https://api.signalbound.art/agents/info/4325: answered (HTTP 200)
  • other:agent-registration https://signalbound.art/.well-known/agents/4325.json: answered (HTTP 200)
  • other:erc-8257:signalbound-int https://api.signalbound.art/.well-known/ai-tool/signalbound-intel.json: answered (HTTP 200)
  • other:erc-8257:signalbound-dro https://api.signalbound.art/.well-known/ai-tool/signalbound-drop-radar.json: answered (HTTP 200)
  • other:erc-8257:signalbound-b20 https://api.signalbound.art/.well-known/ai-tool/signalbound-b20-radar.json: answered (HTTP 200)
  • other:erc-8257:signalbound-por https://api.signalbound.art/.well-known/ai-tool/signalbound-portfolio.json: answered (HTTP 200)
  • other:erc-8257:signalbound-all https://api.signalbound.art/.well-known/ai-tool/signalbound-allowlist-scan.json: answered (HTTP 200)
  • other:erc-8257:signalbound-off https://api.signalbound.art/.well-known/ai-tool/signalbound-offer-radar.json: answered (HTTP 200)
  • other:erc-8257:signalbound-dis https://api.signalbound.art/.well-known/ai-tool/signalbound-dispatch.json: answered (HTTP 200)
  • other:erc-8257:signalbound-rob https://api.signalbound.art/.well-known/ai-tool/signalbound-robinhood-radar.json: answered (HTTP 200)
  • other:erc-8257-registry https://www.8257.ai/: answered (HTTP 200)
  • mcp https://api.signalbound.art/mcp: no valid answer (HTTP 401)
  • other:runtime https://api.signalbound.art/agents/4325/runtime.json: answered (HTTP 200)
  • other:dappa mcp https://www.dappa.ai/api/agents/1/0x3512ba948a032b00952cc6ba43bc013b4fcf7ebc/4325/mcp: no valid answer (HTTP 405)

Recent changes

None recorded since its first check.

Token on Blockscout · JSON · text · Own page

What the card and its endpoints answered when read, not a verdict on the agent.

26 of 20,046 agents match · page 1 of 1

ERC-8004 agents on Robinhood Chain
AgentClassCard hostMCPx402payTo = agentWalletWallet sent a txPlatformCheck
Agent#15 Signalbound #4325Classsite onlyCard hostsignalbound.artMCPnox402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#230 kagemi-house-15Classsite onlyCard hostthekagemi.comMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6606 Penlight · muse #15Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6706 Trove · muse #115Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6741 Chuckle · muse #150Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6742 Hoedown · muse #151Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6743 Bongo · muse #152Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6744 Clog · muse #153Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6745 Sparkle · muse #154Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6746 Lionheart · muse #155Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6747 Elegy · muse #156Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6748 Tumult · muse #157Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6749 Peekaboo · muse #158Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6750 Rustler · muse #159Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6806 Kingcup · muse #215Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#6906 Carillon · muse #315Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#7006 Souffle · muse #415Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#7106 Waffle · muse #515Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#7206 Tutu · muse #615Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#7306 Ocarina · muse #715Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#7406 Stellar · muse #815Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#7506 Mango · muse #915Classsite onlyCard hostmusegod.orgMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#7628 AGNT #1415Classsite onlyCard hostagnt.socialMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#8566 AGNT #3158Classsite onlyCard hostagnt.socialMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#8615 AGNT #2151Classsite onlyCard hostagnt.socialMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails
Agent#8848 AGNT #4015Classsite onlyCard hostagnt.socialMCP-x402-payTo = agentWallet-Wallet sent a txyesPlatformindependentCheckdetails

Each id links to the agent's token on Blockscout. "-" means not declared, or not an x402 seller.

How we checked

We read the ERC-8004 identity registry on Robinhood Chain at block 100007973: for each of the 20,046 agent ids, its token URI, owner and agent wallet. Every read was read-only; nothing was signed, paid or sent.

  • Each registration card was fetched once. Each endpoint a card declares was asked once: MCP with one initialize call, x402 with one GET, websites with one GET.
  • An MCP server counts as answering when initialize returns a valid result. An x402 endpoint counts when it answers HTTP 402 with payment terms (who is paid, in which asset).
  • BV-7X limits requests to 30 a minute. Every endpoint that answered HTTP 429 (rate limited) was asked again at that pace until it answered; none is still unread, so every row carries its final result.
  • "Wallet sent a tx" is the transaction count of the agent wallet (else the owner). A wallet that is a smart contract can have done more than its count shows.

What each class means

real service
At least one MCP server or x402 endpoint answered.
site only
Only a website or other link answered.
card only
The card loads and parses, but nothing it declares answered (or it declares nothing).
broken card
The token URI is empty, not a link, could not be fetched, or is not JSON.

A broken card does not mean bad intent. A host can go offline, a project can move, or a card can be registered before it is published. Each row is what one read on 2026-10-28 returned, nothing more. Information only, not financial advice.