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Payments & Stablecoins

Inktoll

Inktoll is a micro-settlement protocol that lets autonomous AI agents pay publishers in USDC for premium article access and citations. Its described stack combines x402 payment flows, Circle Programmable Wallets and Gateway, and Arc mainnet settlement.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Inktoll — OpenViST project profile in Payments & Stablecoins.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Consider Inktoll when designing an agent workflow that needs paid access to publisher articles and a described payment path for citations, or when assessing publisher onboarding for machine readership.

Who it is for

  • Publishers seeking a way to charge automated readers for individual articles.
  • Developers building AI agents that browse or use paid publisher content.
  • Teams evaluating payment-linked citations for machine-consumed material.

Documented uses

  • Discover articles through RSS and pay for per-article access.
  • Route a citation toll when an agent uses purchased content in an answer.
  • Browse the article catalog and invoke reading or question-answering tools through the documented MCP server.
  • Onboard Ghost or Paragraph publications for indexing and publisher payments.
Before you choose

Requirements & limits

The project README describes the service as live on Arc mainnet and says creator onboarding is open. A personal Circle developer-controlled wallet is described as being provisioned on first use for an agent handle.

  • Publisher integrations labeled live are Ghost and Paragraph; X is described as in progress and Substack as coming soon.
  • The documented stack includes TypeScript, Circle Programmable Wallets and Gateway, x402, Arc mainnet, LangChain, OpenAI gpt-4o-mini, Next.js and SQLite.
  • The MCP tool list includes free catalog browsing, paid article reading and question-answering that can trigger citation tolls.
  • Local setup requires OpenAI and Circle API keys plus Arc settlement configuration.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Set up Inktoll locally

Prepare the local backend, AI reader agent, and web dashboard using the README’s setup sequence.

Before you start

  • A local copy of the Inktoll repository, with the server, agent, and dashboard directories.
  • Node.js and npm available to install and build the project.
  • An OpenAI API key and Circle API key.
  • Arc mainnet configuration values and a Circle Gateway URL as listed in the README.

Steps

  1. Create a root .env file from the documented template, setting PORT=3001, AGENT_PORT=3002, the API keys, and the Arc and Circle settlement values.

  2. From server, run the command below, the command below, and the command below; the README says the server runs at http://localhost:3001.

    Documented command
    npm install
    Documented command
    npm run build
    Documented command
    npm start

  3. From agent (using cd ../agent after the server commands), run the command below, the command below, and the command below; the README says the agent runs at http://localhost:3002.

    Documented command
    npm install
    Documented command
    npm run build
    Documented command
    npm start

  4. From dashboard (using cd ../dashboard after the agent commands), run the command below, the command below, and the command below; the README says the dashboard is available at http://localhost:3005.

    Documented command
    npm install
    Documented command
    npm run build
    Documented command
    npm start -- -p 3005

Expected outcome

The README describes a local server, AI reader agent, and dashboard running on ports 3001, 3002, and 3005 respectively.

Guide limitations

  • The README supplies configuration placeholders, not actual API credentials; do not use placeholder values as working credentials.
  • The README’s local setup instructions do not establish that the payment flow has been independently tested or verified.
Documentation 1 ↗
Source-based practical guide

Start Inktoll services on a VPS with PM2

Use the documented PM2 setup to start the backend server and autonomous agent loop as background processes on a VPS.

Before you start

  • A VPS with the Inktoll repository and its documented configuration in place.
  • Node.js/npm and access to install PM2 globally.
  • The repository’s ecosystem.config.js file.

Steps

  1. Install PM2 globally with the command below.

    Documented command
    npm install -g pm2

  2. From the repository root, run pm2 start ecosystem.config.js.

Expected outcome

The README says this starts the backend server and autonomous agent loop as background daemons.

Guide limitations

  • The README does not specify VPS sizing, operating-system compatibility, or additional server-hardening steps.
  • The documented PM2 commands do not independently verify that the services start successfully or remain online.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗Guide documentation ↗
Source record details
Source availability
Active
Sources checked
17 October 2026
Original website title
mrnetwork0001/Inktoll · Official homepage title · retained in its source language
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