Taiwan Supplier Discovery Pack

Live 402 challenge

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

{
  "x402": {
    "error": "Payment required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "price": "$0.03",
          "version": "2"
        },
        "payTo": "0xCc28F533F7ED90B8B98b5E9614B96138e790267F",
        "amount": "30000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://api.sourcestrand.com/v1/paid/tw-data-packs/supplier-discovery",
      "tags": [
        "taiwan-data",
        "supplier-discovery",
        "stream-pack",
        "paid-data-product"
      ],
      "mimeType": "application/json",
      "description": "Taiwan Supplier Discovery Pack stream routing package",
      "serviceName": "Taiwan Supplier Discovery Pack"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "type": "http",
            "method": "GET",
            "queryParams": {}
          },
          "output": {
            "type": "json",
            "example": {
              "product": "tw_supplier_discovery_pack",
              "streams": [],
              "limitations": [],
              "data_lineage": [],
              "agent_handoff": {},
              "package_scope": {
                "tier": "paid_pack"
              }
            }
          }
        },
        "schema": {
          "type": "object",
          "$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",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "properties": {}
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        },
        "routeTemplate": "/v1/paid/tw-data-packs/supplier-discovery"
      }
    },
    "x402Version": 2
  },
  "error": "PAYMENT_REQUIRED",
  "price": "$0.03",
  "reason": "missing_payment_header",
  "message": "Payment is required.",
  "product_metadata": {
    "price": "$0.03",
    "title": "Taiwan Supplier Discovery Pack",
    "not_for": [
      "Supplier recommendation or credit scoring.",
      "A complete raw historical download.",
      "Legal, investment, procurement, or compliance advice."
    ],
    "product_id": "tw_supplier_discovery_pack",
    "preview_url": "https://api.sourcestrand.com/v1/preview/tw-data-packs/supplier-discovery",
    "best_fit_buyers": [
      "Global sourcing teams screening Taiwan supplier and factory presence.",
      "AI agents deciding which Taiwan stream_ids to request before paid company or procurement research.",
      "Market-entry analysts who need English buyer fields without parsing Taiwan source-language datasets first."
    ],
    "paid_response_delta": [
      "Full selected stream map for supplier discovery and market-entry workflows.",
      "Recommended paid next steps connecting stream_ids to company and procurement x402 endpoints.",
      "Agent handoff notes for preserving source attribution, limitations, and refresh cadence.",
      "Buyer-facing query prompts for global sourcing, site selection, and supplier profile enrichment."
    ]
  },
  "payment_instructions": {
    "asset": "USD Coin",
    "price": "$0.03",
    "reason": "missing_payment_header",
    "network": "eip155:8453",
    "protocol": "x402",
    "diagnosis": {
      "issue_type": "needs_x402_client_retry",
      "likely_cause": "The request did not include an x-payment header. This is expected for the first x402 handshake, and also happens when a human clicks a paid endpoint in a normal browser or a client uses plain fetch without x402 retry support.",
      "operator_note": "Treat this as buyer friction or an integration handoff gap unless it repeats after the buyer says they used an x402-capable client."
    },
    "client_hint": "Use an x402-compatible client such as @x402/fetch, or this repo's npm run x402:paid-gateway smoke client.",
    "safety_note": "Do not send wallet private keys to this API. The buyer client signs locally and sends the x-payment header.",
    "approval_url": "https://api.sourcestrand.com/checkout?resource_url=https%3A%2F%2Fapi.sourcestrand.com%2Fv1%2Fpaid%2Ftw-data-packs%2Fsupplier-discovery",
    "browser_note": "A normal browser can display this 402 payment request, but it will not sign and retry automatically. Use an x402-compatible wallet/client to retry the same resource_url with the x-payment header.",
    "resource_url": "https://api.sourcestrand.com/v1/paid/tw-data-packs/supplier-discovery",
    "free_sample_url": null,
    "troubleshooting": [
      "missing_payment_header means no x-payment header was sent; for browser clicks or plain fetch, this is the expected first stop.",
      "invalid_payment_header means the x-payment header could not be decoded.",
      "payment_requirements_mismatch means the signed payment does not match the current resource requirements.",
      "payment_verification_failed or payment_verification_unavailable means the facilitator rejected or could not check the payment.",
      "payment_settlement_failed or payment_settlement_unavailable means verification may have passed but settlement failed or timed out.",
      "Use the same network and asset listed in this response; this production gateway expects Base mainnet."
    ],
    "buyer_next_steps": [
      "Inspect free_preview_url or free_sample_url before paying.",
      "Human browser users can open approval_url to review the price and handoff before signing locally.",
      "Fund a Base mainnet wallet with the requested USDC asset and enough ETH for gas.",
      "Use an x402-compatible client to call resource_url. The client should read PAYMENT-REQUIRED, sign locally, and retry automatically.",
      "Retry the same resource_url with the x-payment header and a stable x-buyer-hint or buyer_hint query parameter.",
      "If the client already sent x-payment, compare network, asset, amount, and payTo against the fresh x402 accepts in this response."
    ],
    "free_preview_url": "https://api.sourcestrand.com/v1/preview/tw-data-packs/supplier-discovery?buyer_hint=web-402",
    "smoke_client_env": {
      "NETWORK": "eip155:8453",
      "BUYER_HINT": "partner-or-campaign-name",
      "X402_PRODUCT": "tw_supplier_discovery_pack",
      "PAID_GATEWAY_BASE_URL": "https://api.sourcestrand.com"
    },
    "buyer_hint_header": "x-buyer-hint: partner-or-campaign-name",
    "payment_intent_url": "https://api.sourcestrand.com/v1/payment/intent?resource_url=https%3A%2F%2Fapi.sourcestrand.com%2Fv1%2Fpaid%2Ftw-data-packs%2Fsupplier-discovery",
    "x402_resources_url": "https://api.sourcestrand.com/.well-known/x402/resources.json",
    "buyer_hint_query_param": "buyer_hint=partner-or-campaign-name",
    "required_payment_header": "x-payment"
  }
}

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",
    "extra": {
      "name": "USD Coin",
      "price": "$0.03",
      "version": "2"
    },
    "payTo": "0xCc28F533F7ED90B8B98b5E9614B96138e790267F",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "product": "tw_supplier_discovery_pack",
          "streams": [],
          "limitations": [],
          "data_lineage": [],
          "agent_handoff": {},
          "package_scope": {
            "tier": "paid_pack"
          },
          "record_backed_pack": {}
        }
      }
    },
    "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",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "routeTemplate": "/v1/paid/tw-data-packs/supplier-discovery"
  }
}

Provenance

Seen in the source catalog

2026-07-13 07:39Z

Last indexed by Roundhouse

2026-07-13 23:40Z

Last enriched (probe, favicon, geo)

2026-09-14 17:16Z

x402 version

2

Max timeout

60s

Liveness probe

HTTP 530