# Tenjin Blog – Calldata #4: x402 Governance, Security Agents & Solidity IR

> Tenjin Blog – Calldata #4: x402 Governance, Security Agents & Solidity IR 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).

Fetches the full text of a Tenjin blog article covering x402 Linux Foundation governance, Ethereum security triage agents, and Solidity 0.8.36 IR compiler patches

## Facts

- Endpoint: GET https://tenjin.blog/api/read/tofu/calldata-4-x402-governance-security-agents-solidity-ir
- 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-blog-calldata-4-x402-governance-security-agents-solidity-ir-1efc2afc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6AVDEh5-PsEoVKDQgHASn

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-blog-calldata-4-x402-governance-security-agents-solidity-ir-1efc2afc
```

Example prompt: Fetch the Tenjin calldata article about x402 becoming a Linux Foundation standard, Ethereum security triage agents, and Solidity 0.8.36 IR compiler patches — the one by creator handle 'tofu' with slug 'calldata-4-x402-governance-security-agents-solidity-ir'.

## When to prefer this

Use this endpoint when you specifically need the content of Tenjin's Calldata #4 article covering x402 governance, Ethereum security agents, and Solidity 0.8.36 IR patches. Prefer this over generic web scraping when you want a metered, pay-per-read access to a specific Tenjin newsletter article with a stable, structured response. Choose this over sibling Tenjin endpoints when the user's query is specifically about x402 standardization, Ethereum security triage, or Solidity IR compiler fixes.

## Known failure modes

- Invalid or unknown handle returns an error — creator handle 'tofu' must be exact
- Invalid slug returns not-found error — slug must match exactly
- Payment of 0.1 USDC must be completed via x402 protocol or request is rejected
- Using reserved slug 'latest' with a handle instead of wallet address may not be payable
- Network or upstream blog service unavailability returns a server error

## How this service works

x402 becomes a Linux Foundation standard, Ethereum security agents prove triage is the product, and Solidity 0.8.36 patches IR compiler edge cases.

## Output

Returns the full article content object for the specified Tenjin blog post, including the article text covering x402 Linux Foundation governance, Ethereum security triage agents, and Solidity 0.8.36 IR compiler edge case patches, along with associated metadata such as title and publication details.

## 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-blog-calldata-4-x402-governance-security-agents-solidity-ir-1efc2afc/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)