Roundhouse

x402 Utils

Run a regular expression on a text: every match with its position and capture groups (named too), and the text with a replacement applied. RE2 syntax, which runs in linear time (no lookaround or backreferences).

OtherUnknowneip155:8453Exactvia cdp
https://qcb7fnxsbd7fbhj4.68r.lambda-web.us-east-1.on.aws/v1/regex
RegexTextDeveloper-tools
Settlements · 30d
329
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$2.02
Verified settled volume
329 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
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.
1
Unique payers · 30d
Last called 2026-10-25 01:38Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xe6f7508ab572a4dc9c7486ea017b100d83f3c3f8

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.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xe6f7…3c3f8. The signed payment is good for 5 minutes.

Paid to
0xe6f7…3c3f8
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xe6f7508ab572a4dc9c7486ea017b100d83f3c3f8",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "text": "from 2026-10 to 2027-01",
          "pattern": "(?P<year>\\d{4})-(\\d{2})",
          "replacement": "$2/$1"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "count": 2,
          "matched": true,
          "matches": [
            {
              "index": 5,
              "match": "2026-10",
              "named": {
                "year": "2026"
              },
              "groups": [
                "2026",
                "10"
              ]
            }
          ],
          "replaced": "from 10/2026 to 01/2027"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "required": [
                "pattern",
                "text"
              ],
              "properties": {
                "text": {
                  "type": "string",
                  "description": "the text (up to 1 MB)"
                },
                "flags": {
                  "type": "string",
                  "description": "any of i (ignore case), m (multiline), s (dot matches newline)"
                },
                "pattern": {
                  "type": "string",
                  "description": "the pattern (up to 2000 characters)"
                },
                "replacement": {
                  "type": "string",
                  "description": "optional replacement, $1 for groups"
                }
              }
            },
            "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",
              "properties": {
                "count": {},
                "matched": {},
                "matches": {},
                "replaced": {}
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-25 01:38Z
Last indexed by Roundhouse
2026-10-26 17:20Z
Last enriched (probe, favicon, geo)
—
x402 version
2
Max timeout
300s
Liveness probe
Not probed
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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 Utils 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%20Utils'
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://qcb7fnxsbd7fbhj4.68r.lambda-web.us-east-1.on.aws/v1/regex, 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.