Roundhouse

AgentFeed

Email verification: syntax, MX, disposable-domain, role-account and free-provider checks with a deliverable_likely, risky or undeliverable verdict and its reasons. Use when you need to answer: Can this email address plausibly receive mail? No SMTP probe.

DataLiveeip155:8453Exactvia cdp
https://x402.ochinimus.app/api/email-verify
EmailValidationVerificationDisposableLead-quality
Calls · 30d
3
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 snapshots so far.
$4.06
Verified settled volume
752 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
3
Unique payers · 30d
Last called 2026-10-19 13:21Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6

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.

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": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
      },
      "payTo": "4a8o45skRPcyjAdyR8yES215Swvh8uTpZD6KLarhxCJ7",
      "scheme": "exact",
      "network": "solana",
      "mimeType": "application/json",
      "resource": "https://x402.ochinimus.app/api/email-verify",
      "description": "Email verification: syntax, MX, disposable-domain, role-account and free-provider checks with a deliverable_likely, risky or undeliverable verdict and its reasons. Use when you need to answer: Can this email address plausibly receive mail? No SMTP probe.",
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402.ochinimus.app/api/email-verify",
      "description": "Email verification: syntax, MX, disposable-domain, role-account and free-provider checks with a deliverable_likely, risky or undeliverable verdict and its reasons. Use when you need to answer: Can this email address plausibly receive mail? No SMTP probe.",
      "maxAmountRequired": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "GatewayWalletBatched",
        "version": "1",
        "verifyingContract": "0x77777777Dcc4d5A8B6E418Fd04D8997ef11000eE"
      },
      "payTo": "0xA853129ACF56A851f9d51CD8cb47619465260Fa9",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://x402.ochinimus.app/api/email-verify",
      "description": "Email verification: syntax, MX, disposable-domain, role-account and free-provider checks with a deliverable_likely, risky or undeliverable verdict and its reasons. Use when you need to answer: Can this email address plausibly receive mail? No SMTP probe.",
      "maxAmountRequired": "2500",
      "maxTimeoutSeconds": 604900
    }
  ],
  "x402Version": 1
}

Accepts

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

5000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
4a8o45…hxCJ7
Token contract
EPjFWd…TDt1v
Payment window
5 minutes
0.005USDC≈ $0.005 USD
on Base · exact scheme

Pay 0.005 USDC on Base to 0x22DB…076e6. The signed payment is good for 5 minutes.

Paid to
0x22DB…076e6
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
5000 smallest units
5000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x22DB…076e6
Token contract
0x3c49…c3359
Payment window
5 minutes
5000units
on Arbitrum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x22DB…076e6
Token contract
0xaf88…e5831
Payment window
5 minutes
5000units
on eip155:5042 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x0Cf4…52f83
Token contract
0x3600…00000
Payment window
5 minutes
5000units
on algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
QWOWU2…MMEPM
Token contract
31566704
Payment window
5 minutes
0.0025USDC≈ $0.0025 USD
on Base · batch-settlement scheme

Pay 0.0025 USDC on Base to 0x22DB…076e6. The signed payment is good for 5 minutes.

Paid to
0x22DB…076e6
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
2500 smallest units
2500units
on Polygon · batch-settlement scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x22DB…076e6
Token contract
0x3c49…c3359
Payment window
5 minutes
2500units
on Arbitrum · batch-settlement scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x22DB…076e6
Token contract
0xaf88…e5831
Payment window
5 minutes
2500units
on eip155:5042 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0xA853…60Fa9
Token contract
0x3600…00000
Payment window
168 hours
5000units
on Optimism · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x22DB…076e6
Token contract
0x0b2C…7Ff85
Payment window
5 minutes
5000units
on eip155:143 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x22DB…076e6
Token contract
0x7547…fb603
Payment window
5 minutes
5000units
on eip155:43114 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
0x22DB…076e6
Token contract
0xB97E…48a6E
Payment window
5 minutes
The catalog’s raw entry
[
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "name": "USDC",
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
    },
    "payTo": "4a8o45skRPcyjAdyR8yES215Swvh8uTpZD6KLarhxCJ7",
    "amount": "5000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0x0Cf44185564F2b72E291050DC79E578429E52f83",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "31566704",
    "extra": {
      "feePayer": "ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA"
    },
    "payTo": "QWOWU2E6BB76HEQRRMXWZ2MU4HAQIYZWEPP2W7Y377ZRDIW7ZKD4MMMEPM",
    "amount": "5000",
    "scheme": "exact",
    "network": "algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "minDeposit": "25000",
      "withdrawDelay": 86400,
      "receiverAuthorizer": "0xBa3056eC310658e42dFb8a0Fa349C5406212bE37"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "2500",
    "scheme": "batch-settlement",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "minDeposit": "25000",
      "withdrawDelay": 86400,
      "receiverAuthorizer": "0xBa3056eC310658e42dFb8a0Fa349C5406212bE37"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "2500",
    "scheme": "batch-settlement",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "minDeposit": "25000",
      "withdrawDelay": 86400,
      "receiverAuthorizer": "0xBa3056eC310658e42dFb8a0Fa349C5406212bE37"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "2500",
    "scheme": "batch-settlement",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3600000000000000000000000000000000000000",
    "extra": {
      "name": "GatewayWalletBatched",
      "version": "1",
      "verifyingContract": "0x77777777Dcc4d5A8B6E418Fd04D8997ef11000eE"
    },
    "payTo": "0xA853129ACF56A851f9d51CD8cb47619465260Fa9",
    "amount": "2500",
    "scheme": "exact",
    "network": "eip155:5042",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:10",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x754704Bc059F8C67012fEd69BC8A327a5aafb603",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:143",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x22DB3A9686EE5261e7Bf3ed4f91277232E8076e6",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:43114",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "email": "jane.doe@gmail.com"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "note": "No SMTP probe is made, so deliverable_likely means the address is well formed and its domain accepts mail, not that the mailbox exists.",
            "email": "jane.doe@gmail.com",
            "checks": {
              "mx": {
                "kind": "mx",
                "records": [
                  {
                    "exchange": "gmail-smtp-in.l.google.com",
                    "priority": 5
                  },
                  {
                    "exchange": "alt1.gmail-smtp-in.l.google.com",
                    "priority": 10
                  },
                  {
                    "exchange": "alt2.gmail-smtp-in.l.google.com",
                    "priority": 20
                  }
                ]
              },
              "syntax": {
                "valid": true
              },
              "disposable": {
                "value": false,
                "list_fetched": "2026-10-14T06:23:42.870Z"
              },
              "role_account": {
                "local": "jane.doe",
                "value": false
              },
              "free_provider": {
                "value": true
              }
            },
            "source": "syntax and DNS (node:dns) checks; disposable-email-domains list (CC0, github.com/disposable-email-domains)",
            "reasons": [
              "free_provider"
            ],
            "verdict": "deliverable_likely",
            "smtp_probe": false
          },
          "paid": true,
          "tool": "get_email_verify"
        }
      }
    },
    "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",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "email"
              ],
              "properties": {
                "email": {
                  "type": "string",
                  "description": "the address to check, up to 254 characters"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "data": {
                  "type": "object",
                  "properties": {
                    "note": {
                      "type": "string"
                    },
                    "email": {
                      "type": "string"
                    },
                    "checks": {
                      "type": "object"
                    },
                    "source": {
                      "type": "string"
                    },
                    "reasons": {
                      "type": "array"
                    },
                    "verdict": {
                      "type": "string"
                    },
                    "smtp_probe": {
                      "type": "boolean"
                    }
                  }
                },
                "paid": {
                  "type": "boolean"
                },
                "tool": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-19 13:21Z
Last indexed by Roundhouse
2026-10-26 17:20Z
Last enriched (probe, favicon, geo)
2026-10-14 08:46Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
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. 18 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 AgentFeed 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=AgentFeed'
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://x402.ochinimus.app/api/email-verify, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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