FETCH402
← Protocol index

Resource / 448

healthy

URL Unwrap / Redirect Tracer.

GET https://unwrap.use.x402atlas.com/ ↗

Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.

Eligibility
probeable
Failures
0
Last quote
2026-08-13 00:30:03 UTC
Last probe
2026-08-13 00:30:03 UTC
Payment requirements / accepts[] 4 options
State Network Scheme Atomic amount Asset payTo / untrusted
active eip155:8453 exact 9000 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 0x492eC81ECf395FbEa2F19fECe203ee14D0544B71
active eip155:137 exact 9000 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 0x492eC81ECf395FbEa2F19fECe203ee14D0544B71
active eip155:42161 exact 9000 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 0x492eC81ECf395FbEa2F19fECe203ee14D0544B71
active solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp exact 9000 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 1 recent
healthy 2026-08-13 00:30:03 UTC GET · HTTP 402 · 3ms · accepts 4 · base 1 ok
Request
GET https://unwrap.use.x402atlas.com/
Robots
error
Note
robots_error:{:robots_http_status, 404};http_402;accepts=4;base=1
Accepts fingerprint
3c8353f545848ff70b24cc78e540059a633605a0287aae1528e5d88cfc87ff37

Accepts snapshot

[
  {
    "amount": "9000",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": null,
    "extra": {
      "merchant": "x402Atlas",
      "name": "USD Coin",
      "tier": "standard",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:8453",
    "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
    "paymentFlow": null,
    "raw": {
      "amount": "9000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:8453",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "pay_to": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "9000",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "assetTransferMethod": null,
    "extra": {
      "merchant": "x402Atlas",
      "name": "USD Coin",
      "tier": "standard",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:137",
    "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
    "paymentFlow": null,
    "raw": {
      "amount": "9000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:137",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "pay_to": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "9000",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "assetTransferMethod": null,
    "extra": {
      "merchant": "x402Atlas",
      "name": "USD Coin",
      "tier": "standard",
      "version": "2"
    },
    "maxTimeoutSeconds": 300,
    "network": "eip155:42161",
    "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
    "paymentFlow": null,
    "raw": {
      "amount": "9000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "eip155:42161",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "pay_to": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "9000",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "assetTransferMethod": null,
    "extra": {
      "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
      "merchant": "x402Atlas",
      "tier": "standard"
    },
    "maxTimeoutSeconds": 300,
    "network": "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp",
    "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
    "paymentFlow": null,
    "raw": {
      "amount": "9000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "max_timeout_seconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "pay_to": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact"
    },
    "scheme": "exact"
  }
]

PaymentRequired raw 

{
  "accepts": [
    {
      "amount": "9000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    {
      "amount": "9000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    {
      "amount": "9000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    {
      "amount": "9000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact"
    }
  ],
  "error": "Payment required",
  "extensions": {
    "bazaar": {
      "category": "domain-intelligence",
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "url": "https://bit.ly/example"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "final_url": "https://example.com/landing",
            "hops": [
              {
                "location": "https://t.co/abcd",
                "status_code": 301,
                "url": "https://bit.ly/example"
              },
              {
                "location": "https://example.com/landing",
                "status_code": 302,
                "url": "https://t.co/abcd"
              },
              {
                "status_code": 200,
                "url": "https://example.com/landing"
              }
            ],
            "queried_at": "2026-07-03T12:00:00Z",
            "redirect_count": 2,
            "redirected": true,
            "status_code": 200,
            "url": "https://bit.ly/example",
            "warnings": []
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "url": {
                    "description": "Absolute URL to trace. Scheme must be http or https; host must be a hostname (not an IP literal), not \"localhost\", and not under a reserved suffix (.local, .internal, .localdomain, .lan, .test); an explicit port must be the scheme default or on the server's allowlist.",
                    "format": "uri",
                    "type": "string"
                  }
                },
                "required": [
                  "url"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "final_url": {
                    "description": "The last URL reached in the redirect chain",
                    "type": "string"
                  },
                  "hops": {
                    "description": "Every HEAD request made, in order",
                    "items": {
                      "properties": {
                        "location": {
                          "description": "Location header value, if any",
                          "type": "string"
                        },
                        "status_code": {
                          "type": "integer"
                        },
                        "url": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "url",
                        "status_code"
                      ],
                      "type": "object"
                    },
                    "type": "array"
                  },
                  "queried_at": {
                    "description": "UTC timestamp the trace was performed",
                    "format": "date-time",
                    "type": "string"
                  },
                  "redirect_count": {
                    "description": "Number of 3xx hops followed",
                    "type": "integer"
                  },
                  "redirected": {
                    "description": "Whether any redirect was followed",
                    "type": "boolean"
                  },
                  "status_code": {
                    "description": "HTTP status code of the final hop",
                    "type": "integer"
                  },
                  "url": {
                    "description": "The input URL as parsed",
                    "type": "string"
                  },
                  "warnings": {
                    "description": "Advisory notes: hop-cap truncation, redirect loops, missing Location, https→http downgrade, or a blocked redirect target",
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "url",
                  "final_url",
                  "status_code",
                  "redirect_count",
                  "redirected",
                  "hops",
                  "warnings",
                  "queried_at"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      },
      "tags": [
        "url",
        "redirect",
        "unwrap",
        "unshorten",
        "link-safety",
        "shortener",
        "http",
        "agent"
      ]
    }
  },
  "resource": {
    "description": "Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.",
    "mimeType": "application/json",
    "serviceName": "URL Unwrap / Redirect Tracer",
    "tags": [
      "url",
      "redirect",
      "unwrap",
      "unshorten",
      "link-safety",
      "shortener",
      "http",
      "agent"
    ],
    "url": "https://unwrap.use.x402atlas.com/"
  },
  "x402Version": 2
}

Response headers

{
  "alt-svc": "h3=\":443\"; ma=2592000",
  "content-length": "2112",
  "content-type": "application/json",
  "date": "Thu, 13 Aug 2026 00:30:03 GMT",
  "payment-required": "eyJ4NDAyVmVyc2lvbiI6MiwiZXJyb3IiOiJQYXltZW50IHJlcXVpcmVkIiwicmVzb3VyY2UiOnsidXJsIjoiaHR0cHM6Ly91bndyYXAudXNlLng0MDJhdGxhcy5jb20vIiwiZGVzY3JpcHRpb24iOiJUcmFjZSBhbiBIVFRQIHJlZGlyZWN0IGNoYWluIHRvIGl0cyBmaW5hbCBkZXN0aW5hdGlvbiB3aXRob3V0IGRvd25sb2FkaW5nIHBhZ2UgYm9kaWVzLiBSZXR1cm5zIGV2ZXJ5IGhvcCAoVVJMICsgc3RhdHVzKSwgdGhlIGZpbmFsIFVSTCwgYW5kIHNhZmV0eSB3YXJuaW5ncyDigJQgbGluay1zYWZldHkgZ3JvdW5kaW5nIGZvciBhZ2VudHMgYmVmb3JlIHRoZXkgdmlzaXQgb3IgY2l0ZSBhIFVSTC4gQ2xlYW4gSlNPTi4iLCJtaW1lVHlwZSI6ImFwcGxpY2F0aW9uL2pzb24iLCJzZXJ2aWNlTmFtZSI6IlVSTCBVbndyYXAgLyBSZWRpcmVjdCBUcmFjZXIiLCJ0YWdzIjpbInVybCIsInJlZGlyZWN0IiwidW53cmFwIiwidW5zaG9ydGVuIiwibGluay1zYWZldHkiLCJzaG9ydGVuZXIiLCJodHRwIiwiYWdlbnQiXX0sImFjY2VwdHMiOlt7InNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6ImVpcDE1NTo4NDUzIiwiYXNzZXQiOiIweDgzMzU4OWZDRDZlRGI2RTA4ZjRjN0MzMkQ0ZjcxYjU0YmRBMDI5MTMiLCJhbW91bnQiOiI5MDAwIiwicGF5VG8iOiIweDQ5MmVDODFFQ2YzOTVGYkVhMkYxOWZFQ2UyMDNlZTE0RDA1NDRCNzEiLCJtYXhUaW1lb3V0U2Vjb25kcyI6MzAwLCJleHRyYSI6eyJtZXJjaGFudCI6Ing0MDJBdGxhcyIsIm5hbWUiOiJVU0QgQ29pbiIsInRpZXIiOiJzdGFuZGFyZCIsInZlcnNpb24iOiIyIn19LHsic2NoZW1lIjoiZXhhY3QiLCJuZXR3b3JrIjoiZWlwMTU1OjEzNyIsImFzc2V0IjoiMHgzYzQ5OWM1NDJjRUY1RTM4MTFlMTE5MmNlNzBkOGNDMDNkNWMzMzU5IiwiYW1vdW50IjoiOTAwMCIsInBheVRvIjoiMHg0OTJlQzgxRUNmMzk1RmJFYTJGMTlmRUNlMjAzZWUxNEQwNTQ0QjcxIiwibWF4VGltZW91dFNlY29uZHMiOjMwMCwiZXh0cmEiOnsibWVyY2hhbnQiOiJ4NDAyQXRsYXMiLCJuYW1lIjoiVVNEIENvaW4iLCJ0aWVyIjoic3RhbmRhcmQiLCJ2ZXJzaW9uIjoiMiJ9fSx7InNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6ImVpcDE1NTo0MjE2MSIsImFzc2V0IjoiMHhhZjg4ZDA2NWU3N2M4Y0MyMjM5MzI3QzVFRGIzQTQzMjI2OGU1ODMxIiwiYW1vdW50IjoiOTAwMCIsInBheVRvIjoiMHg0OTJlQzgxRUNmMzk1RmJFYTJGMTlmRUNlMjAzZWUxNEQwNTQ0QjcxIiwibWF4VGltZW91dFNlY29uZHMiOjMwMCwiZXh0cmEiOnsibWVyY2hhbnQiOiJ4NDAyQXRsYXMiLCJuYW1lIjoiVVNEIENvaW4iLCJ0aWVyIjoic3RhbmRhcmQiLCJ2ZXJzaW9uIjoiMiJ9fSx7InNjaGVtZSI6ImV4YWN0IiwibmV0d29yayI6InNvbGFuYTo1ZXlrdDRVc0Z2OFA4TkpkVFJFcFkxdnpxS3FaS3ZkcCIsImFzc2V0IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJhbW91bnQiOiI5MDAwIiwicGF5VG8iOiJBU3Q2eHZSeVE3bnRFUnNtY1lWTWRMcVp2ejFHRU44RnpleHpxNjJ0WHJOUSIsIm1heFRpbWVvdXRTZWNvbmRzIjozMDAsImV4dHJhIjp7ImZlZVBheWVyIjoiSGMzc2RFQXNDR1FjcGdmaXZ5d29nOXV3dGs4Z1VCVVpnc3hkTUUxRUp5ODgiLCJtZXJjaGFudCI6Ing0MDJBdGxhcyIsInRpZXIiOiJzdGFuZGFyZCJ9fV0sImV4dGVuc2lvbnMiOnsiYmF6YWFyIjp7ImNhdGVnb3J5IjoiZG9tYWluLWludGVsbGlnZW5jZSIsImluZm8iOnsiaW5wdXQiOnsibWV0aG9kIjoiR0VUIiwicXVlcnlQYXJhbXMiOnsidXJsIjoiaHR0cHM6Ly9iaXQubHkvZXhhbXBsZSJ9LCJ0eXBlIjoiaHR0cCJ9LCJvdXRwdXQiOnsiZXhhbXBsZSI6eyJmaW5hbF91cmwiOiJodHRwczovL2V4YW1wbGUuY29tL2xhbmRpbmciLCJob3BzIjpbeyJsb2NhdGlvbiI6Imh0dHBzOi8vdC5jby9hYmNkIiwic3RhdHVzX2NvZGUiOjMwMSwidXJsIjoiaHR0cHM6Ly9iaXQubHkvZXhhbXBsZSJ9LHsibG9jYXRpb24iOiJodHRwczovL2V4YW1wbGUuY29tL2xhbmRpbmciLCJzdGF0dXNfY29kZSI6MzAyLCJ1cmwiOiJodHRwczovL3QuY28vYWJjZCJ9LHsic3RhdHVzX2NvZGUiOjIwMCwidXJsIjoiaHR0cHM6Ly9leGFtcGxlLmNvbS9sYW5kaW5nIn1dLCJxdWVyaWVkX2F0IjoiMjAyNi0wNy0wM1QxMjowMDowMFoiLCJyZWRpcmVjdF9jb3VudCI6MiwicmVkaXJlY3RlZCI6dHJ1ZSwic3RhdHVzX2NvZGUiOjIwMCwidXJsIjoiaHR0cHM6Ly9iaXQubHkvZXhhbXBsZSIsIndhcm5pbmdzIjpbXX0sInR5cGUiOiJqc29uIn19LCJzY2hlbWEiOnsiJHNjaGVtYSI6Imh0dHBzOi8vanNvbi1zY2hlbWEub3JnL2RyYWZ0LzIwMjAtMTIvc2NoZW1hIiwicHJvcGVydGllcyI6eyJpbnB1dCI6eyJhZGRpdGlvbmFsUHJvcGVydGllcyI6ZmFsc2UsInByb3BlcnRpZXMiOnsibWV0aG9kIjp7ImVudW0iOlsiR0VUIl0sInR5cGUiOiJzdHJpbmcifSwicXVlcnlQYXJhbXMiOnsicHJvcGVydGllcyI6eyJ1cmwiOnsiZGVzY3JpcHRpb24iOiJBYnNvbHV0ZSBVUkwgdG8gdHJhY2UuIFNjaGVtZSBtdXN0IGJlIGh0dHAgb3IgaHR0cHM7IGhvc3QgbXVzdCBiZSBhIGhvc3RuYW1lIChub3QgYW4gSVAgbGl0ZXJhbCksIG5vdCBcImxvY2FsaG9zdFwiLCBhbmQgbm90IHVuZGVyIGEgcmVzZXJ2ZWQgc3VmZml4ICgubG9jYWwsIC5pbnRlcm5hbCwgLmxvY2FsZG9tYWluLCAubGFuLCAudGVzdCk7IGFuIGV4cGxpY2l0IHBvcnQgbXVzdCBiZSB0aGUgc2NoZW1lIGRlZmF1bHQgb3Igb24gdGhlIHNlcnZlcidzIGFsbG93bGlzdC4iLCJmb3JtYXQiOiJ1cmkiLCJ0eXBlIjoic3RyaW5nIn19LCJyZXF1aXJlZCI6WyJ1cmwiXSwidHlwZSI6Im9iamVjdCJ9LCJ0eXBlIjp7ImNvbnN0IjoiaHR0cCIsInR5cGUiOiJzdHJpbmcifX0sInJlcXVpcmVkIjpbInR5cGUiLCJtZXRob2QiXSwidHlwZSI6Im9iamVjdCJ9LCJvdXRwdXQiOnsicHJvcGVydGllcyI6eyJleGFtcGxlIjp7InByb3BlcnRpZXMiOnsiZmluYWxfdXJsIjp7ImRlc2NyaXB0aW9uIjoiVGhlIGxhc3QgVVJMIHJlYWNoZWQgaW4gdGhlIHJlZGlyZWN0IGNoYWluIiwidHlwZSI6InN0cmluZyJ9LCJob3BzIjp7ImRlc2NyaXB0aW9uIjoiRXZlcnkgSEVBRCByZXF1ZXN0IG1hZGUsIGluIG9yZGVyIiwiaXRlbXMiOnsicHJvcGVydGllcyI6eyJsb2NhdGlvbiI6eyJkZXNjcmlwdGlvbiI6IkxvY2F0aW9uIGhlYWRlciB2YWx1ZSwgaWYgYW55IiwidHlwZSI6InN0cmluZyJ9LCJzdGF0dXNfY29kZSI6eyJ0eXBlIjoiaW50ZWdlciJ9LCJ1cmwiOnsidHlwZSI6InN0cmluZyJ9fSwicmVxdWlyZWQiOlsidXJsIiwic3RhdHVzX2NvZGUiXSwidHlwZSI6Im9iamVjdCJ9LCJ0eXBlIjoiYXJyYXkifSwicXVlcmllZF9hdCI6eyJkZXNjcmlwdGlvbiI6IlVUQyB0aW1lc3RhbXAgdGhlIHRyYWNlIHdhcyBwZXJmb3JtZWQiLCJmb3JtYXQiOiJkYXRlLXRpbWUiLCJ0eXBlIjoic3RyaW5nIn0sInJlZGlyZWN0X2NvdW50Ijp7ImRlc2NyaXB0aW9uIjoiTnVtYmVyIG9mIDN4eCBob3BzIGZvbGxvd2VkIiwidHlwZSI6ImludGVnZXIifSwicmVkaXJlY3RlZCI6eyJkZXNjcmlwdGlvbiI6IldoZXRoZXIgYW55IHJlZGlyZWN0IHdhcyBmb2xsb3dlZCIsInR5cGUiOiJib29sZWFuIn0sInN0YXR1c19jb2RlIjp7ImRlc2NyaXB0aW9uIjoiSFRUUCBzdGF0dXMgY29kZSBvZiB0aGUgZmluYWwgaG9wIiwidHlwZSI6ImludGVnZXIifSwidXJsIjp7ImRlc2NyaXB0aW9uIjoiVGhlIGlucHV0IFVSTCBhcyBwYXJzZWQiLCJ0eXBlIjoic3RyaW5nIn0sIndhcm5pbmdzIjp7ImRlc2NyaXB0aW9uIjoiQWR2aXNvcnkgbm90ZXM6IGhvcC1jYXAgdHJ1bmNhdGlvbiwgcmVkaXJlY3QgbG9vcHMsIG1pc3NpbmcgTG9jYXRpb24sIGh0dHBz4oaSaHR0cCBkb3duZ3JhZGUsIG9yIGEgYmxvY2tlZCByZWRpcmVjdCB0YXJnZXQiLCJpdGVtcyI6eyJ0eXBlIjoic3RyaW5nIn0sInR5cGUiOiJhcnJheSJ9fSwicmVxdWlyZWQiOlsidXJsIiwiZmluYWxfdXJsIiwic3RhdHVzX2NvZGUiLCJyZWRpcmVjdF9jb3VudCIsInJlZGlyZWN0ZWQiLCJob3BzIiwid2FybmluZ3MiLCJxdWVyaWVkX2F0Il0sInR5cGUiOiJvYmplY3QifSwidHlwZSI6eyJ0eXBlIjoic3RyaW5nIn19LCJyZXF1aXJlZCI6WyJ0eXBlIl0sInR5cGUiOiJvYmplY3QifX0sInJlcXVpcmVkIjpbImlucHV0Il0sInR5cGUiOiJvYmplY3QifSwidGFncyI6WyJ1cmwiLCJyZWRpcmVjdCIsInVud3JhcCIsInVuc2hvcnRlbiIsImxpbmstc2FmZXR5Iiwic2hvcnRlbmVyIiwiaHR0cCIsImFnZW50Il19fX0=",
  "via": "1.1 Caddy",
  "x-request-id": "0a013b66-2aa2-4e4d-a979-9780e039dcff"
}

Response body 

{
  "accepts": [
    {
      "amount": "9000",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:8453",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    {
      "amount": "9000",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:137",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    {
      "amount": "9000",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "merchant": "x402Atlas",
        "name": "USD Coin",
        "tier": "standard",
        "version": "2"
      },
      "maxTimeoutSeconds": 300,
      "network": "eip155:42161",
      "payTo": "0x492eC81ECf395FbEa2F19fECe203ee14D0544B71",
      "scheme": "exact"
    },
    {
      "amount": "9000",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "merchant": "x402Atlas",
        "tier": "standard"
      },
      "maxTimeoutSeconds": 300,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
      "scheme": "exact"
    }
  ],
  "contact": {
    "email": "support@x402atlas.com"
  },
  "documentation": "https://unwrap.use.x402atlas.com/docs",
  "error": "payment_required",
  "hint": "This endpoint requires x402 payment. The price and payment options are in the PAYMENT-REQUIRED response header (x402 v2). Pay with an x402 client, then retry to receive the data.",
  "llms": "https://unwrap.use.x402atlas.com/llms.txt",
  "method": "GET",
  "openapi": "https://unwrap.use.x402atlas.com/openapi.json",
  "price": "$0.009 per call",
  "resource": {
    "description": "Trace an HTTP redirect chain to its final destination without downloading page bodies. Returns every hop (URL + status), the final URL, and safety warnings — link-safety grounding for agents before they visit or cite a URL. Clean JSON.",
    "mimeType": "application/json",
    "serviceName": "URL Unwrap / Redirect Tracer",
    "tags": [
      "url",
      "redirect",
      "unwrap",
      "unshorten",
      "link-safety",
      "shortener",
      "http",
      "agent"
    ],
    "url": "https://unwrap.use.x402atlas.com/"
  },
  "x402Version": 2
}

Request headers

{
  "accept": "*/*",
  "user-agent": "Fetch402Bot/0.1 (+https://fetch402.com/crawler; contact: crawler@fetch402.com)"
}

Machine contract

Schemas.

InputJSON
{}
OutputJSON
{}