saylorinnovations.com

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required to access this resource.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "memo": "saylor:devkit:regex-test",
        "name": "USD Coin",
        "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
        "version": "2",
        "facilitatorOnly": true,
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "memo": "saylor:devkit:regex-test",
        "session": "eyJhcnRpY2xlSWQiOiJkZXZraXQ6cmVnZXgtdGVzdCIsInJlZmVyZW5jZSI6IkJjY0hiNXZTSzh5bXNmSFY1dDlycm1xb2ZBNTltZWppZ01GcGhzY1RvVXg5IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIxOTA4NTg4MjJ9.jZ5RZ0VM1QkhUWRAssgvPAG1TPUtSLDeyDefSnIPCkM",
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
        "reference": "BccHb5vSK8ymsfHV5t9rrmqofA59mejigMFphscToUx9"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "10000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://saylorinnovations.com/api/regex/test?pattern=(%5Cd%7B4%7D)-(%5Cd%7B2%7D)-(%5Cd%7B2%7D)&text=Released%202026-10-12%2C%20patched%202026-11-03.&flags=g",
    "tags": [
      "regex",
      "regular expression",
      "pattern matching",
      "capture groups",
      "developer tools"
    ],
    "iconUrl": "https://saylorinnovations.com/og-image.jpg",
    "mimeType": "application/json",
    "description": "Regex tester - matches, capture groups and named groups for a JavaScript pattern against text",
    "serviceName": "Saylor Innovations Dev Tools"
  },
  "extensions": {
    "tags": [
      "regex",
      "regular expression",
      "pattern matching",
      "capture groups",
      "developer tools"
    ],
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "text": "Released 2026-10-12, patched 2026-11-03.",
            "flags": "g",
            "pattern": "(\\d{4})-(\\d{2})-(\\d{2})"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "flags": "g",
            "engine": "ECMAScript (V8) regular expressions; the text is not stored",
            "matched": true,
            "matches": [
              {
                "end": 19,
                "index": 9,
                "match": "2026-10-12",
                "named": null,
                "captures": [
                  "2026",
                  "10",
                  "12"
                ]
              },
              {
                "end": 39,
                "index": 29,
                "match": "2026-11-03",
                "named": null,
                "captures": [
                  "2026",
                  "11",
                  "03"
                ]
              }
            ],
            "pattern": "(\\d{4})-(\\d{2})-(\\d{2})",
            "truncated": false,
            "match_count": 2,
            "text_length": 40
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "POST",
                  "PUT",
                  "PATCH",
                  "DELETE",
                  "HEAD"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "pattern",
                  "text"
                ],
                "properties": {
                  "text": {
                    "type": "string",
                    "maxLength": 5000,
                    "description": "Text to search, max 5,000 characters"
                  },
                  "flags": {
                    "type": "string",
                    "default": "g",
                    "pattern": "^[gimsuyd]{0,7}$",
                    "description": "Regex flags from g i m s u y d, each at most once (default g)"
                  },
                  "pattern": {
                    "type": "string",
                    "examples": [
                      "(\\d{4})-(\\d{2})-(\\d{2})",
                      "\\b[A-Z][a-z]+\\b"
                    ],
                    "maxLength": 500,
                    "description": "JavaScript regular expression source without slashes, max 500 characters"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "json"
              },
              "example": {
                "type": "object",
                "required": [
                  "pattern",
                  "matched",
                  "match_count",
                  "matches"
                ],
                "properties": {
                  "flags": {
                    "type": "string",
                    "description": "Flags that were applied"
                  },
                  "engine": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Engine or model that produced the result"
                  },
                  "matched": {
                    "type": "boolean",
                    "description": "True when at least one match was found"
                  },
                  "matches": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "properties": {
                        "end": {
                          "type": "number",
                          "description": "End offset (exclusive)"
                        },
                        "index": {
                          "type": "number",
                          "description": "Start offset in the input"
                        },
                        "match": {
                          "type": "string",
                          "description": "The matched text"
                        },
                        "named": {
                          "type": [
                            "object",
                            "null"
                          ],
                          "description": "Named capture groups, or null"
                        },
                        "captures": {
                          "type": "array",
                          "items": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "description": "Numbered capture groups, null when unmatched"
                        }
                      }
                    },
                    "description": "Up to 100 matches in order"
                  },
                  "pattern": {
                    "type": "string",
                    "description": "The pattern that was tested"
                  },
                  "truncated": {
                    "type": "boolean",
                    "description": "True when more than 100 matches were found"
                  },
                  "checked_at": {
                    "type": [
                      "string",
                      "null"
                    ],
                    "description": "Time the check was run (UTC)"
                  },
                  "match_count": {
                    "type": "number",
                    "description": "Total matches found (before truncation)"
                  },
                  "text_length": {
                    "type": [
                      "number",
                      "null"
                    ],
                    "description": "Text length"
                  }
                }
              }
            }
          }
        }
      }
    },
    "method": "GET",
    "example": {
      "flags": "g",
      "engine": "ECMAScript (V8) regular expressions; the text is not stored",
      "matched": true,
      "matches": [
        {
          "end": 19,
          "index": 9,
          "match": "2026-10-12",
          "named": null,
          "captures": [
            "2026",
            "10",
            "12"
          ]
        },
        {
          "end": 39,
          "index": 29,
          "match": "2026-11-03",
          "named": null,
          "captures": [
            "2026",
            "11",
            "03"
          ]
        }
      ],
      "pattern": "(\\d{4})-(\\d{2})-(\\d{2})",
      "truncated": false,
      "match_count": 2,
      "text_length": 40
    },
    "license": "LicenseRef-Saylor-Agent-Use-1.0",
    "mimeType": "application/json",
    "freshness": "computed on every request; input is not stored",
    "freeSample": "https://saylorinnovations.com/api/regex/test/free",
    "tokenCount": null,
    "inputSchema": {
      "text": {
        "maxLength": 5000,
        "description": "Text to search, max 5,000 characters"
      },
      "flags": {
        "default": "g",
        "pattern": "^[gimsuyd]{0,7}$",
        "description": "Regex flags from g i m s u y d, each at most once (default g)"
      },
      "pattern": {
        "examples": [
          "(\\d{4})-(\\d{2})-(\\d{2})",
          "\\b[A-Z][a-z]+\\b"
        ],
        "maxLength": 500,
        "description": "JavaScript regular expression source without slashes, max 500 characters"
      }
    },
    "serviceName": "Saylor Innovations Dev Tools",
    "instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
    "outputSchema": {
      "type": "object",
      "required": [
        "pattern",
        "matched",
        "match_count",
        "matches"
      ],
      "properties": {
        "flags": {
          "type": "string",
          "description": "Flags that were applied"
        },
        "matched": {
          "type": "boolean",
          "description": "True when at least one match was found"
        },
        "matches": {
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "end": {
                "type": "number",
                "description": "End offset (exclusive)"
              },
              "index": {
                "type": "number",
                "description": "Start offset in the input"
              },
              "match": {
                "type": "string",
                "description": "The matched text"
              },
              "named": {
                "type": [
                  "object",
                  "null"
                ],
                "description": "Named capture groups, or null"
              },
              "captures": {
                "type": "array",
                "items": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "description": "Numbered capture groups, null when unmatched"
              }
            }
          },
          "description": "Up to 100 matches in order"
        },
        "pattern": {
          "type": "string",
          "description": "The pattern that was tested"
        },
        "truncated": {
          "type": "boolean",
          "description": "True when more than 100 matches were found"
        },
        "match_count": {
          "type": "number",
          "description": "Total matches found (before truncation)"
        }
      }
    },
    "noPathTemplate": true,
    "settlementModes": [
      "facilitator-transaction",
      "self-submitted-reference"
    ],
    "typicalLatencyMs": 20
  },
  "x402Version": 2
}

Accepts

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

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://saylorinnovations.com/api/regex/test",
    "description": "",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 120
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "mimeType": "application/json",
    "resource": "https://saylorinnovations.com/api/regex/test",
    "description": "",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 120
  }
]

Provenance

Seen in the source catalog

2026-10-18 22:45Z

Last indexed by Roundhouse

2026-10-25 08:46Z

Last enriched (probe, favicon, geo)

2026-10-16 22:45Z

x402 version

1

Max timeout

120s

Liveness probe

HTTP 402