Roundhouse AI

x402.wach.ai

The Verification Protocol for AI Agents

DataLiveeip155:8453Exactvia cdp
https://x402.wach.ai/verify-token
Calls · 30d
22→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 17 snapshots so far.
$5.79
Verified settled volume
172 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
26
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-24 10:42Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9acfDC5A3D6Bfbb127615751E0F0e44014E32abF

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.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x9acf…32abF. The signed payment is good for 5 minutes.

Paid to
0x9acf…32abF
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
10000units
on eip155:1187947933 · 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
0x9acf…32abF
Token contract
0x8588…FCb20
Payment window
5 minutes
0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x9acf…32abF. The signed payment is good for 168 hours.

Paid to
0x9acf…32abF
USD Coin contract
0x8335…02913
Payment window
168 hours
As published
10000 smallest units
0.01USDC≈ $0.01 USD
on Base · 4mica-credit scheme

Pay 0.01 USDC on Base to 0x9acf…32abF. The signed payment is good for 5 minutes.

Paid to
0x9acf…32abF
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9acfDC5A3D6Bfbb127615751E0F0e44014E32abF",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x85889c8c714505E0c94b30fcfcF64fE3Ac8FCb20",
    "extra": {
      "name": "Bridged USDC (SKALE Bridge)",
      "version": "2"
    },
    "payTo": "0x9acfDC5A3D6Bfbb127615751E0F0e44014E32abF",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:1187947933",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "GatewayWalletBatched",
      "version": "1",
      "verifyingContract": "0x77777777Dcc4d5A8B6E418Fd04D8997ef11000eE"
    },
    "payTo": "0x9acfDC5A3D6Bfbb127615751E0F0e44014E32abF",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USDC",
      "version": "2",
      "tabEndpoint": "https://x402.wach.ai/x402/tab"
    },
    "payTo": "0x9acfDC5A3D6Bfbb127615751E0F0e44014E32abF",
    "amount": "10000",
    "scheme": "4mica-credit",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "chainId": "8453",
          "tokenAddress": "0x4200000000000000000000000000000000000006"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "error": false,
            "chainName": "base",
            "chainFullName": "Base"
          },
          "chain": "8453",
          "timestamp": "2026-06-05T00:00:00.000Z",
          "tokenAddress": "0x4200000000000000000000000000000000000006"
        }
      }
    },
    "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": [
                "tokenAddress"
              ],
              "properties": {
                "chain": {
                  "type": "string",
                  "description": "Alias for chainId."
                },
                "chainId": {
                  "type": "string",
                  "description": "Optional chain id or alias. Supports 1, 56, 137, 8453, 900, eth, bsc, polygon, base, skale-base, or solana."
                },
                "tokenAddress": {
                  "type": "string",
                  "description": "EVM token contract address or Solana token mint address."
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "tokenAddress",
                "chain",
                "timestamp",
                "data"
              ],
              "properties": {
                "data": {
                  "type": "object"
                },
                "chain": {
                  "type": "string"
                },
                "timestamp": {
                  "type": "string",
                  "format": "date-time"
                },
                "tokenAddress": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  },
  "forge-feedback": {
    "info": {
      "ask": "After your call, please rate this service for other agents. Free, one request. When the outcome is not fully, the issue field tells the merchant what to fix.",
      "rate": "GET /feedback/rate?feedback_id=FEEDBACK_ID&outcome=fully",
      "issue": {
        "when": "The outcome is not fully. Tells the merchant what to fix.",
        "values": [
          "wrong_output",
          "unmet_expectation",
          "schema_mismatch",
          "slow",
          "unclear_docs",
          "too_expensive"
        ]
      },
      "outcome": [
        "fully",
        "partially",
        "no"
      ],
      "payment": "None. Plain GET, not an x402 endpoint.",
      "protocol": "forge-feedback/0",
      "feedback_id": "In the paid response body (feedback_id) and the Forge-Feedback-Id header.",
      "agent_context": "Required before payment: agent_context {agent_type, search_query} in your paid request's JSON body (without a body: agent_type, agent_search_query query parameters). search_query: share the query you used to find this service, or \"direct\" if you did not search."
    }
  }
}

Provenance

Seen in the source catalog
2026-09-24 10:43Z
Last indexed by Roundhouse
2026-09-24 14:50Z
Last enriched (probe, favicon, geo)
2026-09-21 03:45Z
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. 17 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 x402.wach.ai 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=x402.wach.ai'
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.wach.ai/verify-token, 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.