Roundhouse AI

api.agishub.com

Timezone-aware date arithmetic: add or subtract a duration to a datetime (days are calendar-based and DST-safe; hours and minutes are absolute), or compute the difference between two datetimes that may be in different zones.

InfraLiveeip155:8453Exactvia cdp
https://api.agishub.com/paid/date-calculate
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 15 snapshots so far.
$2.96
Verified settled volume
90 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.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-07 20:55Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x23Fc725e8EAa1c58900C6507Ba89be99a6DFc75d

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.

{
  "usage": "POST /paid/date-calculate with a JSON body. An unpaid request returns an x402 HTTP 402 challenge; sign the USDC payment on Base and retry.",
  "method": "POST",
  "schema": "https://api.agishub.com/openapi.json",
  "payment": {
    "asset": "USDC",
    "price": "$0.01",
    "network": "base",
    "protocol": "x402"
  },
  "endpoint": "/paid/date-calculate",
  "description": "Timezone-aware date arithmetic: add or subtract a duration to a datetime (days are calendar-based and DST-safe; hours and minutes are absolute), or compute the difference between two datetimes that may be in different zones."
}

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 0x23Fc…Fc75d. The signed payment is good for 5 minutes.

Paid to
0x23Fc…Fc75d
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": "0x23Fc725e8EAa1c58900C6507Ba89be99a6DFc75d",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "datetime": "2026-12-25",
          "timezone": "Europe/Madrid",
          "operation": {
            "type": "add",
            "unit": "seconds",
            "amount": 1,
            "to_datetime": "2026-12-25",
            "to_timezone": "Europe/Madrid"
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "result": "Timezone-aware date arithmetic: add or subtract a duration to a datetime (days are calendar-based and DST-safe; hours an"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "datetime",
                "timezone",
                "operation"
              ],
              "properties": {
                "datetime": {
                  "type": "string",
                  "description": "Base datetime: ISO 8601 or natural language."
                },
                "timezone": {
                  "type": "string",
                  "description": "IANA timezone the base datetime is in."
                },
                "operation": {
                  "type": "object",
                  "required": [
                    "type"
                  ],
                  "properties": {
                    "type": {
                      "enum": [
                        "add",
                        "diff"
                      ],
                      "type": "string",
                      "description": "'add' to shift the datetime by a duration, or 'diff' to measure the gap between two datetimes."
                    },
                    "unit": {
                      "enum": [
                        "seconds",
                        "minutes",
                        "hours",
                        "days",
                        "weeks"
                      ],
                      "type": "string",
                      "description": "For type 'add': one of seconds, minutes, hours, days, weeks."
                    },
                    "amount": {
                      "type": "number",
                      "description": "For type 'add': how much to shift. Use a negative number to subtract."
                    },
                    "to_datetime": {
                      "type": "string",
                      "description": "For type 'diff': the second datetime (ISO 8601 or natural language)."
                    },
                    "to_timezone": {
                      "type": "string",
                      "description": "For type 'diff': the IANA timezone of to_datetime (defaults to the base timezone)."
                    }
                  },
                  "description": "What to compute: { type:'add', amount, unit } to add/subtract a duration, or { type:'diff', to_datetime, to_timezone? } for the difference between two datetimes.",
                  "additionalProperties": false
                }
              },
              "additionalProperties": false
            },
            "type": {
              "enum": [
                "http"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type",
            "example"
          ],
          "properties": {
            "type": {
              "enum": [
                "json"
              ],
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          },
          "additionalProperties": false
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-07 20:55Z
Last indexed by Roundhouse
2026-09-20 07:10Z
Last enriched (probe, favicon, geo)
2026-09-21 16:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 410
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. 15 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 api.agishub.com 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=api.agishub.com'
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.agishub.com/paid/date-calculate, 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.