Locus Pro Plugin MCP Server

Locus plugin

Pay-per-use APIs for coding agents. This plugin connects the Locus MCP server and teaches your agent how to use it well: cited web research, paid data and API lookups, and thousands of metered provider endpoints billed to one prepaid workspace credit balance.

One repo, one plugin, many agents. The same plugin installs into Claude Code, Codex, Cursor, Grok, OpenClaw, and any client that speaks the Agent Plugins or Agent Skills open standards.

What you get

• MCP server connection to https://api.paywithlocus.com/api/credits/mcp (streamable HTTP). Sign-in is OAuth with browser consent; no keys are stored in configuration.
• The locus skill: operating instructions for the agent covering tool routing, cost quotes, idempotent billing, error recovery, and spend safety.
• The locus-setup skill: full self-serve onboarding — account creation (human sign-up through the OAuth page, or agent-owned accounts via AgentID), capability selection, and a user-requested Stripe funding handoff — so the whole product works from inside the plugin.

No account yet? The OAuth sign-in page includes account creation, and the setup skill walks agents through the rest: platform.paywithlocus.com.

Install

Claude Code

/plugin marketplace add locus-technologies/locus-pro-plugin
/plugin install locus@locus

Then run /mcp, select locus, and authenticate.

Already added the server manually as locus-pro via claude mcp add? Remove it first (claude mcp remove locus-pro) so you don't carry two connections to the same server.

Codex

codex plugin marketplace add locus-technologies/locus-pro-plugin
codex plugin add locus@locus
codex mcp login locus

Cursor

Until the Cursor Marketplace listing is live, add the MCP server directly in ~/.cursor/mcp.json:

{
  "mcpServers": {
    "locus": { "url": "https://api.paywithlocus.com/api/credits/mcp" }
  }
}

Cursor's OAuth flow completes in the browser on first use.

Grok

grok plugin install locus-technologies/locus-pro-plugin --trust

Grok requires explicit trust to install plugins (they can run MCP servers and skills); review the repo, then pass --trust. Grok discovers the server's OAuth automatically and opens the browser flow on first use.

OpenClaw

Install the plugin from this repo as a marketplace source, then add the MCP server explicitly:

openclaw plugins install locus --marketplace locus-technologies/locus-pro-plugin
openclaw mcp add locus --url https://api.paywithlocus.com/api/credits/mcp --transport streamable-http --auth oauth
openclaw mcp login locus

A new marketplace source triggers a one-time trust prompt (pass --force for non-interactive installs), and openclaw gateway restart applies plugin changes.

Skill only (77+ agents)

npx skills add locus-technologies/locus-pro-plugin

Discovers both Locus skills (usage and setup) and installs your selection into whichever agents you have. The skills include the connection instructions; add the MCP server in your client's settings to make the tools available.

Any Agent Plugins client

npx plugins add locus-technologies/locus-pro-plugin

Plain MCP (no plugin)

claude mcp add --transport http locus https://api.paywithlocus.com/api/credits/mcp
codex mcp add locus --url https://api.paywithlocus.com/api/credits/mcp

Authentication

The server advertises OAuth 2.1 with dynamic client registration. Your client discovers it from the URL, opens a browser sign-in, and a consent screen in the Locus dashboard scopes the connection. Tokens live in your client's runtime, never in this repo's files. Never put lcr_ or lcac_ secret keys into MCP configuration; those are server-side service credentials.

Costs and safety

Paid provider calls are live and billed to your workspace credit balance; catalog discovery, quotes, and balance checks are free. The skill instructs agents to pass idempotency keys so retries never double-charge, to quote significant calls with estimate_cost first, and to confirm with you before unusually large spends. Spend limits and approvals are configured per workspace in the dashboard.

Repository layout

Links

• Docs: https://docs.paywithlocus.com
• Dashboard: https://platform.paywithlocus.com
• MCP reference: https://paywithlocus.com/agent/mcp.md

License

MIT