simfuse.app

Buy a travel eSIM and get online the moment you land. Instant QR delivery, plans for 204+ countries, no physical SIM, no roaming bills. Pay with Apple Pay or Google Pay.

SearchLiveeip155:8453Exactvia cdp
Calls · 30d
245
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 snapshots so far.
$19.27
Verified settled volume
259 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.
245
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-13 07:33Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x74Ae7540109F9640c426b34dfD06e60D4918CD0a

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 0x74Ae…8CD0a. The signed payment is good for 2 minutes.

USD Coin contract
0x8335…02913
Payment window
2 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x74Ae7540109F9640c426b34dfD06e60D4918CD0a",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 120
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "limit": 10,
          "currency": "USD",
          "destination": "JP",
          "min_validity_days": 7,
          "min_data_amount_mb": 5120
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "plans": [
            {
              "id": "01kwsmf1yc5ywmex1c5jcccg09",
              "name": "Japan 5 GB",
              "unlimited": false,
              "price_cents": 1499,
              "purchase_url": "https://simfuse.app/x402/purchase/01kwsmf1yc5ywmex1c5jcccg09",
              "validity_days": 30,
              "data_amount_mb": 5120,
              "coverage_countries": [
                "JP"
              ]
            }
          ],
          "matched": 12,
          "currency": "USD",
          "returned": 10
        }
      }
    },
    "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": {
              "properties": {
                "limit": {
                  "type": "integer",
                  "description": "Results to return, 1 to 25. Defaults to 10."
                },
                "currency": {
                  "type": "string",
                  "description": "ISO 4217 code for prices. Defaults to USD."
                },
                "destination": {
                  "type": "string",
                  "description": "ISO 3166-1 alpha-2 country the traveller visits, e.g. JP. Omit to search every plan, including regional and global ones."
                },
                "max_price_cents": {
                  "type": "integer",
                  "description": "Budget: max price in cents of currency."
                },
                "min_validity_days": {
                  "type": "integer",
                  "description": "Trip length: plans valid at least this many days."
                },
                "min_data_amount_mb": {
                  "type": "integer",
                  "description": "Data needed, in MB (1 GB is 1024)."
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "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": [
                "plans"
              ],
              "properties": {
                "plans": {
                  "type": "array",
                  "description": "Matching plans; each has id, name, data_amount_mb, validity_days, coverage_countries, price_cents and purchase_url (POST it to buy with x402 or card)."
                },
                "matched": {
                  "type": "integer",
                  "description": "Plans matching, before limit."
                }
              }
            }
          }
        }
      }
    },
    "category": "connectivity",
    "discoverable": true
  }
}

Provenance

Seen in the source catalog
2026-09-13 07:32Z
Last indexed by Roundhouse
2026-09-25 09:30Z
Last enriched (probe, favicon, geo)
2026-09-13 07:45Z
x402 version
2
Max timeout
120s
Liveness probe
HTTP 405
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. 12 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 simfuse.app 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=simfuse.app'
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://simfuse.app/x402/plans/search, 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.