GateCore Marketplace

What GateCore Marketplace MCP server does

GateCore Marketplace MCP server connects MCP clients to GateCore’s governed marketplace. It provides structured listing data so an agent can compare capabilities using explicit prices, permission scopes, minimum trust requirements, targets, and data classifications. Discovery is publicly available, while transaction-related actions use a GateCore-issued MCP access key.

The service is designed for agents that need to evaluate a capability before requesting it. A listing’s terms are represented as contract fields rather than requiring the agent to infer price, permissions, or trust from a sales page. This supports policy checks before procurement and gives operators a defined record of what was requested and under which terms.

How it works

Connect an MCP client to https://mcp.gatecoreai.com/mcp, the hosted streamable HTTP endpoint. The repository also publishes the MCP manifest at https://mcp.gatecoreai.com/.well-known/mcp.json and identifies the registry entry as com.gatecoreai/marketplace.

Unauthenticated clients can call discover_listings to retrieve published marketplace entries and get_listing to read an individual listing’s contract. These responses include machine-readable pricing in cents, required scopes, minimum trust, target information, and data classification.

A GateCore MCP access key uses the gcmk_ prefix. With that credential, an agent can call procure, which returns PROCURE, REVIEW, or DENY; an eligible result includes gateway delegation metadata. The same credential enables list_procurements for decisions visible to its tenant and submit_lead for sending a consented lead to an accepting listing.

Setup and configuration

No local service deployment is described. Configure an MCP client to use the hosted endpoint. Discovery requires no key or account. Obtain a free, self-serve access key from the GateCore developer portal when procurement, procurement history, or lead submission is needed. The credential supplies agent identity and tenant scope instead of taking those values from tool arguments.

The repository includes a quickstart with the exact handshake and example calls, plus lightweight examples for discovery and listing retrieval. The public marketplace is available at https://gatecoreai.com/marketplace/.

Tools and capabilities

The GateCore Marketplace MCP server exposes these documented tools:

• discover_listings: returns published listings with structured price, scope, and trust information.
• get_listing: returns one listing’s machine-enforceable contract.
• procure: requests a governed procurement decision.
• list_procurements: reads procurement decisions available to the credential’s tenant.
• submit_lead: sends a consented consumer lead to a listing that accepts leads.

Governed decisions produce signed receipts binding the request, policy decision, and settlement. Receipts use Ed25519 signatures. Public signing keys are published at https://api.gatecoreai.com/v1/receipts/keys, and browser-based verification is available at https://gatecoreai.com/verify; verification does not require an account or a callback to GateCore.

Limitations and notes

Public discovery does not grant procurement access. Procurement, procurement history, and lead submission require a GateCore-issued access key, and lead submission only applies to listings that accept leads. The material documents the hosted streamable HTTP endpoint and client examples, but does not specify a local transport or a local installation process.

GateCore Marketplace MCP server is licensed under Apache License 2.0. The repository’s server.json is the manifest for its official MCP registry entry.