Agent API Labs

Analyze an email address using syntax validation, MX, SPF, DMARC, disposable-domain detection and role-account detection. Does not verify mailbox existence.

SocialLiveeip155:8453Exactvia cdp
EmailValidationDnsSecurityUtility
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 3 snapshots so far.
$0.08
Verified settled volume
3 settlements proven x402 by their on-chain EIP-3009 marker.
$0.015
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-21 09:26Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x88Bc80ff57b0a636F7e74c6c4125310EB7B64374

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.

0.015USDC≈ $0.015 USD
on Base · exact scheme

Pay 0.015 USDC on Base to 0x88Bc…64374. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
15000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x88Bc80ff57b0a636F7e74c6c4125310EB7B64374",
    "amount": "15000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "email": "person@example.com"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "mx": {
            "valid": true,
            "records": [
              {
                "exchange": "mail.example.com",
                "priority": 10
              }
            ]
          },
          "spf": {
            "present": true
          },
          "dmarc": {
            "present": true
          },
          "email": "person@example.com",
          "score": 100,
          "domain": "example.com",
          "status": "likely_valid",
          "warnings": [],
          "disposable": false,
          "roleAccount": false,
          "syntaxValid": true
        }
      }
    },
    "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": {
              "type": "object",
              "required": [
                "email"
              ],
              "properties": {
                "email": {
                  "type": "string",
                  "description": "Valid email address to analyze. Mailbox existence is not checked."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "email",
                "syntaxValid",
                "domain",
                "mx",
                "spf",
                "dmarc",
                "disposable",
                "roleAccount",
                "score",
                "status",
                "warnings"
              ],
              "properties": {
                "mx": {
                  "type": "object",
                  "required": [
                    "valid",
                    "records"
                  ],
                  "properties": {
                    "valid": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "records": {
                      "type": "array",
                      "items": {
                        "type": "object"
                      }
                    }
                  }
                },
                "spf": {
                  "type": "object",
                  "required": [
                    "present"
                  ],
                  "properties": {
                    "present": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    }
                  }
                },
                "dmarc": {
                  "type": "object",
                  "required": [
                    "present"
                  ],
                  "properties": {
                    "present": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    }
                  }
                },
                "email": {
                  "type": "string"
                },
                "score": {
                  "type": "integer",
                  "maximum": 100,
                  "minimum": 0
                },
                "domain": {
                  "type": "string"
                },
                "status": {
                  "enum": [
                    "likely_valid",
                    "risky",
                    "unknown"
                  ],
                  "type": "string"
                },
                "warnings": {
                  "type": "array",
                  "items": {
                    "type": "string"
                  }
                },
                "disposable": {
                  "type": "boolean"
                },
                "roleAccount": {
                  "type": "boolean"
                },
                "syntaxValid": {
                  "type": "boolean"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-21 09:26Z
Last indexed by Roundhouse
2026-09-22 07:00Z
Last enriched (probe, favicon, geo)
2026-09-21 10:15Z
x402 version
2
Max timeout
300s
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. 3 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 Agent API Labs 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=Agent%20API%20Labs'
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://api.agentapilabs.com/api/email/check, 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.