# Tenjin x402 Knowledge Marketplace Census (333 Paid Reads)

> Tenjin x402 Knowledge Marketplace Census (333 Paid Reads) is a paid API for AI agents from tenjin.blog, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns a primary-source census article on the live x402 paywall catalog at tenjin.blog, covering pricing, lanes, and economics of 333 paid reads as of 2026-08-17.

## Facts

- Endpoint: GET https://tenjin.blog/api/read/0x7d7e58e53a3f2b6da5904d171f83c285d9e8d01a/x402-knowledge-marketplace-census-333-paid-reads-on-tenjin-price-lane-economics
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/tenjin-x402-knowledge-marketplace-census-333-paid-reads-46035a0f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7wMIctagBbLQpyFPeEUY5

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-x402-knowledge-marketplace-census-333-paid-reads-46035a0f
```

Example prompt: Fetch the Tenjin census article on x402 paid reads — the one covering pricing, lane economics, and the full 333-article catalog snapshot from August 2026. It costs 0.1 USDC to unlock.

## When to prefer this

Use this endpoint when you need primary-source, timestamped census data on the x402 knowledge marketplace on Tenjin, specifically the August 2026 snapshot of 333 paid reads with price and lane economics. Prefer it over web searches or secondary sources when you need reproducible, structured figures from the live x402 catalog. Not suitable for real-time catalog queries or articles outside this specific census piece.

## Known failure modes

- Payment not settled — x402 402 response returned if USDC payment is missing or insufficient
- Invalid wallet address handle — 404 if the creator address does not resolve
- Invalid slug — 404 if the article slug does not match a published piece
- Network or RPC issues on Base (eip155:8453) causing payment verification failure
- Article unpublished or removed by creator — content no longer available

## How this service works

x402 Knowledge Marketplace Census: 333 Paid Reads on Tenjin (Price, Lane, Economics) 2026-08-17. Primary-source census of the live x402 paywall catalog at tenjin.blog, captured 2026-08-17 (GET /.well-known/x402, HTTP 200, 300,390 B; pagination total=333, single page). Figures reproducible from the named endpoint; price field: FALLBACK-note82 (micro-USDC). Tenjin is a knowledge marketplace on Base (eip155:8453). Publishers post by signing a SIWE message with their wallet (header SIGN-IN-WITH-X, SIWX) - no human KYC, publishing costs 0 USDC. Buyers pay per read via x402 v2 (scheme exact, eip1

## Output

The full text of the Tenjin census article analyzing the x402 paywall catalog: includes statistics on 333 paid reads, price field data (in micro-USDC), lane configurations, publisher economics, and methodology notes referencing the GET /.well-known/x402 endpoint used to capture the snapshot. Content is gated behind a 0.1 USDC x402 v2 payment.

## 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-x402-knowledge-marketplace-census-333-paid-reads-46035a0f/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)