sentinel-agent.dev
No description published for this endpoint.
The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xCf1d31020A7915421f6d66B9835Dcb6f422337E7",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://sentinel-agent.dev/v1/guard",
"description": "SENTINEL pre-execution safety verdict",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e58a2e3789859b1b3622c0a25c81f19f",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xCf1d31020A7915421f6d66B9835Dcb6f422337E7",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"mimeType": "application/json",
"resource": "https://sentinel-agent.dev/v1/guard",
"description": "SENTINEL pre-execution safety verdict",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USD Coin",
"version": "2",
"feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
},
"payTo": "giu4VciTkfWJNG1oeP6SzHEJwmabikJSMB91GaFNWE4",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147wwSaGf",
"mimeType": "application/json",
"resource": "https://sentinel-agent.dev/v1/guard",
"description": "SENTINEL pre-execution safety verdict",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://sentinel-agent.dev/v1/guard",
"mimeType": "application/json",
"description": "SENTINEL pre-execution safety verdict"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "POST",
"example": {
"tx": {
"to": "0xCONTRACT",
"data": "0x",
"value": "0x0"
},
"chain": "base",
"from_addr": "0xAGENT"
}
},
"output": {
"type": "json",
"example": {
"risks": [],
"verdict": "SAFE",
"signature": "base64..."
}
}
},
"tags": [
"security",
"safety",
"agent",
"x402",
"pre-execution",
"web3"
],
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method"
],
"properties": {
"type": {
"type": "string"
},
"method": {
"type": "string"
}
}
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
}
}
}
}
},
"serviceName": "SENTINEL"
}
},
"x402Version": 2,
"paymentRequirements": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xCf1d31020A7915421f6d66B9835Dcb6f422337E7",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"mimeType": "application/json",
"resource": "https://sentinel-agent.dev/v1/guard",
"description": "SENTINEL pre-execution safety verdict",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
},
{
"asset": "0xaf88d065e58a2e3789859b1b3622c0a25c81f19f",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xCf1d31020A7915421f6d66B9835Dcb6f422337E7",
"amount": "5000",
"scheme": "exact",
"network": "eip155:42161",
"mimeType": "application/json",
"resource": "https://sentinel-agent.dev/v1/guard",
"description": "SENTINEL pre-execution safety verdict",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USD Coin",
"version": "2",
"feePayer": "2wKupLR9q6wXYppw8Gr2NvWxKBUqm4PPJKkQfoxHDBg4"
},
"payTo": "giu4VciTkfWJNG1oeP6SzHEJwmabikJSMB91GaFNWE4",
"amount": "5000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147wwSaGf",
"mimeType": "application/json",
"resource": "https://sentinel-agent.dev/v1/guard",
"description": "SENTINEL pre-execution safety verdict",
"maxAmountRequired": "5000",
"maxTimeoutSeconds": 300
}
]
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
Pay 0.005 USDC on Base to 0xCf1d…337E7. The signed payment is good for 5 minutes.
- Paid to
- 0xCf1d…337E7
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xCf1d31020A7915421f6d66B9835Dcb6f422337E7",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Provenance
- Seen in the source catalog
- 2026-07-21 02:09Z
- Last indexed by Roundhouse
- 2026-09-24 02:15Z
- Last enriched (probe, favicon, geo)
- 2026-09-15 19:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service sentinel-agent.dev and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=sentinel-agent.dev' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://sentinel-agent.dev/v1/guard, never from a cached figure, and pay with an x402 client. 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.