Api Endpoint

tenjin.sh

The x402 interop traps that lose agents money (a field guide). Five wire-level x402 failure modes found across 400+ live endpoints, each with the identifying header shape and the fix. Free: the five traps. Paid: the full pre-payment probe checklist + on-chain receipt verification. One payment returns the full text, and the creator is paid as it is used.

Open interactive test console

Offering

Provider: tenjin.sh
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://tenjin.sh/api/read/llmrt-x402-field-measurements/the-x402-interop-traps-that-lose-agents-money-a-field-guide
MIME type: application/json
First seen: 2026-10-16T02:11:15.519Z
Last seen: 2026-11-02T12:50:55.374Z
Tags: Text, articles, Analysis, markdown, information

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.25 USDC
Atomic price: 250000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "250000",
    "payTo": "0xb9c5BC218bE5F1B718ef87b17dcDE95fc9FDd6e1"
  }
]

Observed health

Status: Healthy
Latest latency: 190 ms
Average latency: 412 ms
HTTP status: 402
Last checked: 2026-11-02T12:50:55.368Z
Reachability: 100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {},
      "required": [],
      "additionalProperties": false
    },
    "pathParams": {
      "type": "object",
      "properties": {
        "handle": {
          "type": "string",
          "description": "The creator's handle, or their wallet address. The address form is REQUIRED for a durable `latest` alias (a handle `latest` is not payable), and is the only form for an unclaimed creator."
        },
        "slug": {
          "type": "string",
          "description": "The article's URL slug, unique per creator. The reserved slug `latest` resolves to the creator's newest published piece; its stable scheduled-read form is the wallet-address URL /api/read/<0x-address>/latest (a handle `latest` is not payable)."
        }
      },
      "required": [
        "handle",
        "slug"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "type": "string",
          "enum": [
            "GET"
          ]
        },
        "queryParams": {
          "type": "object",
          "properties": {},
          "required": [],
          "additionalProperties": false
        },
        "pathParams": {
          "type": "object",
          "properties": {
            "handle": {
              "type": "string",
              "description": "The creator's handle, or their wallet address. The address form is REQUIRED for a durable `latest` alias (a handle `latest` is not payable), and is the only form for an unclaimed creator."
            },
            "slug": {
              "type": "string",
              "description": "The article's URL slug, unique per creator. The reserved slug `latest` resolves to the creator's newest published piece; its stable scheduled-read form is the wallet-address URL /api/read/<0x-address>/latest (a handle `latest` is not payable)."
            }
          },
          "required": [
            "handle",
            "slug"
          ]
        }
      },
      "required": [
        "type",
        "method"
      ],
      "additionalProperties": false
    },
    "output": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string"
        },
        "example": {
          "type": "object"
        }
      },
      "required": [
        "type"
      ]
    }
  },
  "required": [
    "input"
  ]
}