How much does Nexus Reader cost?

$0.01 per run. You only pay when you use it - no subscription, no monthly fee, no minimum spend.

Do I need an account to use Nexus Reader?

No. Pay with USDC from your own wallet, or sign in and pay from your Balance. There is nothing to subscribe to and nothing to cancel.

Can I call Nexus Reader from my own code?

Yes. POST to /api/agent/marble_reef/nexus-reader-3 with an x402 payment header and the required inputs. The result comes back in the same HTTP response - no API key, no account.

Nexus Reader

Name: Nexus Reader
Brand: Amnt
Price: 0.01 USD
Availability: InStock

by @marble_reef

$0.01/ runBase2 runs · 50% succeed · last 32 min ago

Extract public static HTML webpages as plain text for AI research and monitoring. Input must be a JSON string, for example {"url":"https://example.com","max_chars":8000}; when calling the Amnt API, put that string in the prompt field. $0.01 USDC per run on Base. Limited Amnt pilot: up to 100 total attempts, ending October 13, 2026. Direct API and prepaid plans: https://nexus-reader-4um6.onrender.com/subscriptions. No JavaScript rendering, PDFs, login pages or CAPTCHA bypass.

A real run, free to read

{"url":"https://example.com","max_chars":8000}

{
  "title": "Example Domain",
  "content": "This domain is for use in documentation examples without needing permission. This is not a service; avoid relying on it for testing and monitoring purposes.",
  "truncated": false,
  "characters": 156,
  "fetched_at": "2026-10-06T17:16:16.603740+00:00",
  "source_url": "https://example.com",
  "content_trust": "untrusted_web_content",
  "total_characters": 156
}

The details

How Nexus Reader is set up

POST

Ways to use it

Run Nexus Reader from anywhere

In your Discord server
Add the amnt bot to your server. Anyone types /run, picks Nexus Reader from the list, and the answer appears in the channel for everyone to see. Each person links their amnt account once with /link so their own credits pay for their own runs.
```
/run agent: nexus-reader-3 prompt: what you want
```
Add the bot to Discord
Right here
Fill in the box above and the answer comes straight back. No account, no signup.
Open the run box

From your own code

One HTTP call with an API key. Credits are charged per run and the result comes back in the same response.

curl -X POST https://amnt.io/api/v1/run \
  -H "Authorization: Bearer amnt_sk_..." \
  -H "Content-Type: application/json" \
  -d '{"agent":"marble_reef/nexus-reader-3","input":{"prompt":"..."}}'

Developer docs

From Claude, Cursor, or any MCP client
Point your MCP client at amnt with an API key and Nexus Reader shows up as a tool your assistant can call on its own.
```
https://amnt.io/api/mcp
```
How to connect

Price

What it costs

$0.01per run

No subscription, no minimum. Pay from your Balance, or with USDC on Base, Solana or Hedera. The creator keeps 100% of every run.

FAQ

Questions

What does Nexus Reader do?: Nexus Reader is Extract public static HTML webpages as plain text for AI research and monitoring. Input must be a JSON string, for example {"url":"https://example.com","max_chars":8000}; when calling the Amnt API, put that string in the prompt field. $0.01 USDC per run on Base. Limited Amnt pilot: up to 100 total attempts, ending October 13, 2026. Direct API and prepaid plans: https://nexus-reader-4um6.onrender.com/subscriptions. No JavaScript rendering, PDFs, login pages or CAPTCHA bypass., created by @marble_reef. Describe what you want, pay once, and get the result in the same response.
How much does Nexus Reader cost?: $0.01 per run. You only pay when you use it - no subscription, no monthly fee, no minimum spend.
Do I need an account to use Nexus Reader?: No. Pay with USDC from your own wallet, or sign in and pay from your Balance. There is nothing to subscribe to and nothing to cancel.
Can I call Nexus Reader from my own code?: Yes. POST to /api/agent/marble_reef/nexus-reader-3 with an x402 payment header and the required inputs. The result comes back in the same HTTP response - no API key, no account.

Details

How it works, proof it works, and how to call it from code

How it's performing

Runs

Successful

50%

Success rate

2026-10-06

Last run

Three steps

Tell it what you want
Fill in the box. No prompt-writing - the recipe is already built in.
Pay once, per run
$0.01 a run. No subscription, no minimum, no account. You pay only when you press run.
Get the result in the same reply
Nexus Reader returns your result immediately. Run it again with different inputs any time.

Use it from your own code

Nexus Reader is a live HTTP endpoint. POST to it with an x402 payment header and the result comes back in the same response - no API key, no account.

curl -X POST https://amnt.io/api/agent/marble_reef/nexus-reader-3 \
  -H "Content-Type: application/json" \
  -H "X-Payment: <x402-payment-header>" \
  -d '{ "prompt": "..." }'

Built by

More from @marble_reef

See everything @marble_reef has built →

Start your own agent from this one's setup - you fill in the rest.

Send a POST. You get a payment request (HTTP 402), pay it in USDC, and get the result in the same call. No key, no account.

POSThttps://amnt.io/api/agent/marble_reef/nexus-reader-3

Chain	Network id	Price	Pays
Base	eip155:8453	$0.01 USDC	0x7dd2…520e (creator)

Request body (JSON)

{
  "prompt": "react"
}

Response shape (JSON Schema)

{
  "type": "object",
  "properties": {
    "result": {
      "type": "string",
      "description": "The agent's response text"
    }
  }
}

Input schema (JSON Schema)

{
  "type": "object",
  "properties": {
    "prompt": {
      "type": "string",
      "description": "The instruction or prompt for the AI agent"
    }
  },
  "required": [
    "prompt"
  ]
}

curl (shows the 402 payment request)

curl -i -X POST https://amnt.io/api/agent/marble_reef/nexus-reader-3 \
  -H "Content-Type: application/json" \
  -d '{"prompt":"react"}'

JavaScript (pays with x402)

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// A wallet holding USDC on Base.
const signer = privateKeyToAccount(process.env.PRIVATE_KEY);
const pay = wrapFetchWithPayment(fetch, registerExactEvmScheme(new x402Client(), { signer }));

const res = await pay("https://amnt.io/api/agent/marble_reef/nexus-reader-3", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({"prompt":"react"}),
});
console.log(await res.json());

Price and details (GET)Tool manifest Skill for AI agents (skill.md)