Roundhouse

lazaretto.dev

Lazaretto is an agent-native API that inspects a skill, tool, or package before an AI agent installs or runs it — without ever executing it — and returns a structured signals report: known-bad matches, deterministic findings, and a content hash.

SearchLiveeip155:8453Exactvia cdp
https://lazaretto.dev/v1/scan
Calls · 30d
2↑ 100%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$0.30
Verified settled volume
10 settlements proven x402 by their on-chain EIP-3009 marker.
$0.030
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-17 06:16Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x428df107e32E08288fcAC6567f4F40bc4eAB4Da0

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

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.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.03USDC≈ $0.03 USD
on Base · exact scheme

Pay 0.03 USDC on Base to 0x428d…B4Da0. The signed payment is good for 1 minute.

Paid to
0x428d…B4Da0
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
30000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x428df107e32E08288fcAC6567f4F40bc4eAB4Da0",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "name": "Lazaretto pre-install scan",
      "input": {
        "body": {
          "depth": "full",
          "target": {
            "ref": "left-pad@1.3.0",
            "type": "npm_package"
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "risk": "none",
          "verdict": "clear",
          "confidence": "high",
          "target_hash": "sha256:aa57b3ac555f3bfe2357e8a2e7ddfaa77934597887502db9ca0e660d388bf85f"
        }
      },
      "description": "Deterministic pre-install verification for npm packages, AI agent skills and MCP tools. Matches the exact version against OSV and OpenSSF malicious-package advisories, then runs behavioral analysis for credential theft, exfiltration, obfuscation, prompt injection and install-time droppers, returning a verdict with file-and-line evidence, a SHA-256 of what was analyzed, and a signed attestation that verifies offline. No LLM in the scan path, so the same input yields the same verdict."
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "required": [
                "target"
              ],
              "properties": {
                "depth": {
                  "enum": [
                    "lookup",
                    "full"
                  ],
                  "type": "string"
                },
                "target": {
                  "type": "object",
                  "required": [
                    "type"
                  ],
                  "properties": {
                    "ref": {
                      "type": "string"
                    },
                    "type": {
                      "enum": [
                        "inline",
                        "raw_url",
                        "npm_package",
                        "github_repo",
                        "clawhub_skill"
                      ],
                      "type": "string"
                    },
                    "content": {
                      "type": "string"
                    }
                  }
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-17 06:16Z
Last indexed by Roundhouse
2026-09-24 08:50Z
Last enriched (probe, favicon, geo)
2026-09-21 05:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 404
Report

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. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service lazaretto.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=lazaretto.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://lazaretto.dev/v1/scan, 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.