AI agent tools and billing guides

Learn how to connect agents, choose an integration, evaluate APIs, control spending, and bill customers with Locus Pro. Each guide links to the relevant implementation reference.

Connect your agent

Connect AI Agent Tools with Locus Pro

Connect a personal agent or enterprise runtime to paid APIs through hosted MCP, choose the right credential, and verify the first tool call.

How to add the Locus MCP server to Claude Code

Add an MCP server to Claude Code in two commands. Install the Locus plugin, sign in with /mcp, and let Claude call paid APIs from one credit balance.

How to add Locus to the Claude desktop app

Add Locus to the Code tab in the Claude desktop app. Add the plugin marketplace in Customize, sign in from a terminal, and fix a shadowing local entry.

How to add Locus to Claude.ai as a custom connector

Add Locus to Claude.ai or Cowork as a custom connector, upload three skills, and check your balance. Includes the Team plan Owner-only limit.

How to add Locus MCP to Codex CLI and app

Add MCP to Codex: install the Locus plugin, run codex mcp login, and approve OAuth. Your agent gets paid APIs on one credit balance, no provider keys.

How to add Locus MCP to ChatGPT (Developer mode)

Add an MCP server to ChatGPT with Developer mode: create a Locus custom app with OAuth, select it in chat, and call paid APIs from one credit balance.

How to add Locus MCP servers to Cursor

Add MCP to Cursor with a one-click install link or ~/.cursor/mcp.json. Approve Locus with OAuth and call paid APIs from one credit balance, no keys.

How to add Locus MCP to Cline

Set up Cline MCP for Locus Pro: install the remote server with OAuth, add the three Locus skills, and call paid APIs from one credit balance.

How to add an MCP server to VS Code with OAuth

Add the Locus Pro MCP server to VS Code: save .vscode/mcp.json, start it from MCP: List Servers, approve OAuth, and call paid APIs from Copilot Chat.

How to add Locus MCP to Gemini CLI

Set up Gemini CLI MCP for Locus Pro: run gemini mcp add, sign in with /mcp auth, and let Gemini call paid APIs from one prepaid credit balance.

How to add Locus to Grok, Grok Build, and Grok Bot

Add the Locus Pro MCP server to Grok. Set up a grok.com custom connector, install it in the Grok Build CLI with grok mcp add, or ask Grok Bot.

How to add Locus to OpenClaw, Hermes, Muse, and Instinct

Add Locus to AI agents like OpenClaw, Hermes, Muse, and Instinct with one install prompt. See what it installs, what to approve, and what was tested.

How to connect an MCP server to any AI agent

How to connect an MCP server to an AI agent: the Locus Pro Streamable HTTP URL, remote MCP server OAuth with PKCE, the CLI, and headless bearer credentials.

How to set up OpenClaw

Set up OpenClaw step by step: install, onboard, add MCP servers, and connect Locus Pro so your agent can call paid tools from one balance.

How to set up Hermes agent

Set up the Hermes agent step by step: install, first run, add MCP servers, and connect Locus Pro so your agent can call paid tools from one balance.

Best tools by agent

What's the best web search MCP server?

Find the best web search MCP server. Exa, Tavily, Brave, Firecrawl, Parallel and Perplexity compared on benchmark scores, free tiers and per-call prices.

Best tools for Hermes agent

The most useful tools to install on a Hermes agent: web search, browser automation, paid APIs over MCP, and the hermes mcp commands to add each one.

Best tools for OpenClaw agent

The most useful tools to install on an OpenClaw agent: web search, browser control, paid APIs over MCP, and the openclaw mcp commands to add each one.

Best MCP servers for Claude Code

The best MCP servers for Claude Code: paid APIs over one connection, search, browser control, and repos, with the claude mcp add commands to install each.

How agent payments work

MCP vs API vs SDK for AI Agent Tools

Choose hosted MCP for interactive agents or API and SDK access for application code. Compare discovery, credentials, billing, and customer attribution.

Prepaid Credits for AI Agents: How They Work

Understand Locus Pro credit balances, subscription allowances, purchased credits, usage pricing, reservations, refunds, and funding controls.

Usage-Based Billing for AI Agents and APIs

Design customer balances, exact usage prices, markup, retries, and receipts for an AI product, with a worked Locus Pro billing example.

API Key Management and BYOK for AI Agents

Compare managed provider access with enterprise BYOK. Import supported OpenAPI actions, protect upstream credentials, and understand who pays.

Control AI Agent Tool Spending

Combine prepaid balances, account caps, scoped credentials, tool permissions, and live-quote ceilings to control agent tool costs.

Is there an OpenRouter for APIs?

Is there an OpenRouter for APIs? Compare Locus Pro, RapidAPI, x402 Bazaar, Composio, Eden AI and ToolRoute on billing, API keys, MCP access and controls.

What is x402? How HTTP 402 payments work

What is x402? The open HTTP 402 payment standard explained: the payment flow, facilitators, EIP-3009, V2 changes, the Bazaar, and how Locus uses it.

What does HTTP 402 Payment Required mean?

What does HTTP 402 Payment Required mean? Why APIs return it, how to tell a credits error from an x402 or MPP challenge, and how a client should respond.

What is the Machine Payments Protocol (MPP)?

What is the Machine Payments Protocol (MPP)? How the Stripe and Tempo HTTP 402 standard works, which payment methods it supports, and how it compares to x402.

Agentic payments guide

Learn how AI agents pay for tools and APIs under predefined limits, policies, and audit controls using MCP, x402, and Locus infrastructure.

AI agent tools and billing guides

Connect your agent

Best tools by agent

How agent payments work

Comparisons and alternatives