how.is

Name: how.is
Price: 0.02 USDC
Availability: InStock

No description published for this endpoint.

OtherLiveeip155:8453Exactvia facilitator:thirdweb

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 snapshots so far.

$0.53

Verified settled volume

44 settlements proven x402 by their on-chain EIP-3009 marker.

$0.020

Listed price

As published in the catalog. Always read the live 402 before paying.

—

Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xa76a0E93C5af3fd43521300B0a58eF5F70fC44F6

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.

{
  "docs": "https://how.is/llms.txt",
  "tool": "screenshot",
  "x402": {
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xa76a0E93C5af3fd43521300B0a58eF5F70fC44F6",
        "amount": "20000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://how.is/v1/site/screenshot",
      "tags": [
        "screenshot",
        "browser",
        "web",
        "vision",
        "rendering"
      ],
      "iconUrl": "https://how.is/icon.png",
      "mimeType": "application/json",
      "description": "Take a screenshot of any public web page: a 1280-wide JPEG, viewport or full page, with its final URL, HTTP status and title.",
      "serviceName": "how.is"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "url": "https://github.com"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "data": {
                "_shape": "data: image_base64 (JPEG), mime, width, height, final_url, http_status, title, note."
              },
              "result": "Website screenshot for the requested subject",
              "receipt": {
                "rail": "x402",
                "tool": "screenshot",
                "charge_usd": 0.02,
                "settlement_tx": "0x…"
              }
            }
          }
        },
        "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": {
                  "type": "object",
                  "required": [
                    "url"
                  ],
                  "properties": {
                    "url": {
                      "type": "string",
                      "format": "uri",
                      "maxLength": 2000,
                      "description": "A public http(s) URL"
                    },
                    "full_page": {
                      "type": "boolean",
                      "description": "Capture the whole page, not just the first screen"
                    }
                  },
                  "additionalProperties": false
                },
                "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"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  },
  "error": "payment required",
  "accepts": [
    {
      "how": "Any x402 v2 client handles this: sign the `accepts[0]` terms from the PAYMENT-REQUIRED response header (base64 JSON, repeated here as `x402`), then retry the same request with header PAYMENT-SIGNATURE: <base64 payment payload>. X-PAYMENT is accepted too.",
      "rail": "x402",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "payTo": "0xa76a0E93C5af3fd43521300B0a58eF5F70fC44F6",
      "scheme": "exact",
      "network": "eip155:8453",
      "x402Version": 2,
      "network_note": "mainnet",
      "amount_atomic": "20000",
      "maxTimeoutSeconds": 300
    },
    {
      "how": "No wallet? POST https://how.is/v1/key (free, no body) returns an api_key and a pay_url. Keep the key, show your user the pay_url to add credit by card (from $5), then retry with Authorization: Bearer <api_key>. Keys carry a daily spend cap (default $10.00).",
      "mode": "live",
      "rail": "credits",
      "get_key": {
        "url": "https://how.is/v1/key",
        "method": "POST"
      }
    }
  ],
  "price_usd": 0.02,
  "free_sample": {
    "body": {
      "url": "https://example.com"
    },
    "note": "this exact request is free (rate-limited) so you can see the real response shape before paying"
  }
}

Accepts

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

0.02USDC≈ $0.02 USD

on Base · exact scheme

Pay 0.02 USDC on Base to 0xa76a…C44F6. The signed payment is good for 5 minutes.

Paid to: 0xa76a…C44F6
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 20000 smallest units
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xa76a0E93C5af3fd43521300B0a58eF5F70fC44F6",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://how.is/v1/site/screenshot",
    "description": "",
    "maxAmountRequired": "20000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog: 2026-10-27 19:59Z
Last indexed by Roundhouse: 2026-11-07 11:45Z
Last enriched (probe, favicon, geo): 2026-11-07 05:16Z
x402 version: 1
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. 14 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 how.is 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=how.is'
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://how.is/v1/site/screenshot, 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.