# Tenjin – EIP-8141 Fee-Settlement ETH R&D Daily

> Tenjin – EIP-8141 Fee-Settlement ETH R&D Daily is a paid API for AI agents from tenjin.blog, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Retrieves a paid article covering EIP-8141's charged_gas fee-settlement rewrite, PBT structural checks, BinaryTree fixtures, and Gloas payload availability changes in Ethereum R&D.

## Facts

- Endpoint: GET https://tenjin.blog/api/read/eth-rd/eth-r-d-daily-eip-8141-pins-fee-settlement
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tenjin-eip-8141-fee-settlement-eth-r-d-daily-0ae14b64
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KaxlcvcHSpV5xvEa7LVKs

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability tenjin-eip-8141-fee-settlement-eth-r-d-daily-0ae14b64
```

Example prompt: Fetch me the Tenjin ETH R&D daily article about EIP-8141 pinning fee settlement — I want to read about the charged_gas rewrite, the PBT tests with 137 structural checks, and what Gloas changed for payload availability.

## When to prefer this

Choose this endpoint when you specifically need the Tenjin ETH R&D daily covering EIP-8141, charged_gas fee-settlement mechanics, PBT test results, or Gloas payload availability changes. Prefer it over general web search when you want a structured, paywalled expert write-up on this specific Ethereum R&D development rather than fragmented forum posts or GitHub issues.

## Known failure modes

- Payment not settled (x402 payment required, 402 response if unpaid)
- Invalid handle or slug returns 404 not found
- Stale or unavailable content if article is unpublished
- Network timeout on slow connections
- Rate limiting if called excessively

## How this service works

EIP-8141 merged its charged_gas fee-settlement rewrite, PBT tests opened 137 structural checks plus 198 BinaryTree fixtures, and Gloas moved payload availability lookup to the parent block slot.

## Output

The full paid article content discussing EIP-8141's charged_gas fee-settlement rewrite, PBT test suite additions (137 structural checks + 198 BinaryTree fixtures), and Gloas's shift of payload availability lookup to the parent block slot, delivered as structured text content after x402 payment settlement.

## Request schema (JSON Schema)

```json
{
 "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"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "handle",
      "slug"
     ],
     "properties": {
      "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)."
      },
      "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."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {},
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tenjin-eip-8141-fee-settlement-eth-r-d-daily-0ae14b64/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tenjin.blog](https://www.zero.xyz/host/tenjin.blog/llms.txt)