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Search and discover advertiser products through an open marketplace for AI agents.
About
Search and discover advertiser products through an open marketplace for AI agents.
Remote endpoints: streamable-http: https://mcp.nexbid.dev/mcp
Security Report
Excellent TypeScript SDK for the Agentic Discovery Commerce Protocol with clean architecture, proper input validation using Zod schemas, and secure credential handling through configuration. The code demonstrates high quality with comprehensive type safety and no security concerns. Supply chain analysis found 1 known vulnerability in dependencies (1 critical, 0 high severity).
7 files analyzed · 3 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install & Connect
Available as Local & Remote
This plugin can run on your machine or connect to a hosted endpoint. during install.
Documentation
View on GitHubFrom the project's GitHub README.
Protocol Commerce
The open infrastructure for agent-native commerce.
Protocol Commerce is an open initiative to create standardized, auditable, and interoperable protocols for AI agent-driven commerce. This repository contains the specification, SDKs, and technical manifesto.
Contents
| Directory | Description |
|---|---|
manifesto/ | Why open protocols matter for commerce — principles, landscape analysis, and rationale |
adcp-spec/ | AdCP v0.1.0 — Agentic Discovery Commerce Protocol specification, JSON schemas, and examples |
adcp-sdk-typescript/ | TypeScript SDK: types, validators, client, and scoring reference implementation |
webmcp-reference/ | WebMCP browser integration: expose commerce tools to in-browser AI agents via navigator.modelContext |
amdp-spec/ | AMDP v0.1.0 — Agent Mandate Discovery Protocol: cross-vertical authorization spec, JSON schemas, and example mandates |
agentic-kit/ | Agentic Kit — the trust layer: building blocks for verifiable + auditable AI agents |
lean-verification/ | Lean 4 formal verification — 47 theorems proving auction/budget/wallet/policy correctness, lake build-checkable |
Quick Start
npm install @protocol-commerce/adcp-sdk
import { AdcpClient } from '@protocol-commerce/adcp-sdk';
const client = new AdcpClient({
serverUrl: 'https://mcp.nexbid.dev',
apiKey: 'your-api-key',
});
const results = await client.search({
query: 'organic olive oil',
intent: 'purchase',
geo: 'CH',
});
The Problem
AI agents are becoming the primary interface for product discovery and purchase. The protocols powering this shift — OpenAI's ACP, Google's UCP — are proprietary and platform-controlled. Publishers have no representation. There is no open standard.
Protocol Commerce fills this gap.
Read the full Technical Manifesto →
Key Principles
- Open by Default — MIT-licensed, auditable, forkable
- Publisher Parity — Publishers are first-class protocol participants
- Privacy Native — Context signals, not user profiles
- Transparent Scoring — Public formula:
score = 0.4×bid + 0.4×relevance + 0.2×quality
Reference Implementation: Nexbid
Nexbid is the production-grade reference implementation of Protocol Commerce, built by digital opua GmbH (CHE-435.289.702, Switzerland).
| Metric | Status |
|---|---|
| MCP Integration | Native — full commerce lifecycle |
| Formal Verification | Lean 4 — core security properties proven |
| Privacy | Cookie-free, Swiss-hosted, nDSG + GDPR compliant |
| AI Scoring | Multi-provider, model-agnostic |
| Phase | Production-grade closed beta |
Connect Any LLM
{
"mcpServers": {
"nexbid": {
"url": "https://mcp.nexbid.dev/mcp",
"transport": "streamable-http"
}
}
}
Any MCP-compatible LLM (Claude, GPT-4, Gemini) can directly search, browse, and purchase products through the Nexbid marketplace.
Why Formal Verification?
Nexbid is the only commerce platform whose core security properties are mathematically proven in Lean 4 — not just tested, but proven correct for all possible inputs.
→ Technology details · How Nexbid compares
Sponsors
| Sponsor | Role |
|---|---|
| Nexbid | Initiator, reference implementation, initial maintainer |
License
MIT — Use it, fork it, build on it. No strings attached.
Links
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