ERC-8004 identity
#21193AI Security Guard - Security Scanning for Autonomous AI Agentsinline registration

Agents process inputs they don't control: APIs, MCP tools, documents, web content, emails. Each is a potential attack surface. A February 2026 zero-click RCE via calendar invite proved even routine inputs can compromise agents. Five specialized detection experts analyze content before your agent processes it: pattern detection, intent drift analysis, semantic analysis, structure analysis, and code analysis across 8 languages. Covers prompt injection, credential exfiltration, data theft, code injection, social engineering, and 60+ attack patterns. POST /v1/guard with content + intent_contract. Returns verdict, confidence, findings, recommendations. Agent decides: proceed, constrain, escalate, or block. Privacy by design: No API keys (x402 cryptographic payments). Content deleted in 15 minutes. No training on customer data. Zero data retention on AI provider. Services: Content scanning ($0.0015-$0.024), Document analysis (PDF/DOCX), Preflight validation (~10ms), Follow-up Q&A ($0.012

MerchantReport

0x4b16…71d2

0x4b1683872786d72516fbebfc061bfac550e271d2Explorer
Received
$1.60
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
56
Last 7d vs prior 7d
4
Distinct counterparties
Over the whole indexed history

Received $1.60 of the $258.65M Roundhouse has indexed across 713,540 walletsless than 0.0001% of it.

Chains (from the recent scan): Base (56)

Funds flow over time

Activity

MarAprMayJunJulAugSep
LessMore

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

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x76bd…b28a$0.00$1.3347201d agoGraph
0x7e57…2f09$0.00$0.15266d agoGraph
0x9cc4…b176$0.00$0.13698d agoGraph
0x9683…22cc$0.00$0.00051203d agoGraph

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

Data quality

83% of observed volume is with a single counterparty, in all 56 observed settlements.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x7e57…2f090x4b16…71d2Base$0.08100%payAI66d ago0xfa4b4f…161932
0x7e57…2f090x4b16…71d2Base$0.08100%payAI71d ago0x2df974…788138
0x9cc4…b1760x4b16…71d2Base$0.0075100%payAI98d ago0xcae97b…4d0c3f
0x9cc4…b1760x4b16…71d2Base$0.08100%payAI99d ago0x0a129e…cca301
0x9cc4…b1760x4b16…71d2Base$0.0075100%payAI103d ago0x133786…35484d
0x9cc4…b1760x4b16…71d2Base$0.02100%payAI103d ago0xc4b1da…4da15c
0x9cc4…b1760x4b16…71d2Base$0.01100%payAI117d ago0xb9c394…101023
0x9cc4…b1760x4b16…71d2Base$0.0075100%payAI117d ago0xfc848c…fddc4a
0x76bd…b28a0x4b16…71d2Base$0.0005100%payAI201d ago0xd9ea4f…b53ae4
0x9683…22cc0x4b16…71d2Base$0.0005100%payAI203d ago0xac5695…e371b0
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0x8766fd…212831
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0xcb2ae2…98ed72
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0x885f65…9b30dd
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0x60e425…51850a
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0x22ea09…0b3ee0
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0x725431…a9c5d5
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0x2071ba…230893
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0xbada4e…57b75a
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0xcc18fa…33ef9c
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0x753cb2…466b4f
0x76bd…b28a0x4b16…71d2Base$0.0015100%payAI206d ago0xfd5d87…e8f44c
0x76bd…b28a0x4b16…71d2Base$0.0005100%payAI208d ago0xc2772a…c5d2c5
0x76bd…b28a0x4b16…71d2Base$0.0005100%payAI208d ago0x3969f7…62c2f6
0x76bd…b28a0x4b16…71d2Base$0.0005100%payAI208d ago0x0adf75…288659
0x76bd…b28a0x4b16…71d2Base$0.0025100%payAI208d ago0x09e29a…3c57f8

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0x4b16…71d2's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0x4b1683872786d72516fbebfc061bfac550e271d2

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0x4b1683872786d72516fbebfc061bfac550e271d2

curl -s 'https://api.roundhouseai.io/v0/merchants/0x4b1683872786d72516fbebfc061bfac550e271d2'
curl -s 'https://api.roundhouseai.io/v0/entities/0x4b1683872786d72516fbebfc061bfac550e271d2/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

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