Discovery

Name: Discovery
Author: nexbid-dev

by nexbid-devversion 1.0.1i★ –iRuns in the cloud

Registry namedev.nexbid/discovery

Install

Overview

Description from the maker (original English)

Search and discover advertiser products through an open marketplace for AI agents.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs in the cloud
Transport: Streamable HTTP
Category: Search & AI memory

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on the maker’s server: what you ask it goes through their server.
The registry lists no key to fill in.

You need

Runs in the cloudNothing to install; it connects over the internet

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

Open Settings → Connectors
Press Add custom connector
Paste the address below and press Add
If it asks you to sign in, sign in with the maker

https://mcp.nexbid.dev/mcp

Run this in your terminal

claude mcp add --transport http discovery https://mcp.nexbid.dev/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "discovery": {
      "url": "https://mcp.nexbid.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "discovery": {
      "type": "http",
      "url": "https://mcp.nexbid.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

Open ChatGPT on the web → Settings → Connectors (Apps)
Press Create or Add (some plans need Developer mode under Advanced first)
Paste the address below, give it a name and save
If it asks you to sign in, sign in with the maker

https://mcp.nexbid.dev/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified against the domain nexbid.dev (the registry checks domain ownership)
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
… Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
… Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
… Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint

Compared with others in Search & AI memoryi

More stars than 0% of the other 7256 servers in this category
Published to the registry more recently than 5% of the other 7256 servers in this category
Basic checks equal to or better than 100% of the other 7256 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Discovery safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 8 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Context7, Codebase Memory, Exa

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Context7

by upstash

Feeds AI the latest docs for libraries and frameworks before it answers, so code it writes does not use outdated, removed functions.

Computer or cloud★ 64,224MITUpdated today

Install

Codebase Memory

by DeusData

Codebase knowledge graph for AI agents — 162 languages, sub-ms queries, 99% fewer tokens.

Runs on your computer★ 48,148MITUpdated 20 days ago

Install

Exa

by exa-labs

Connect AI agents to Exa for web search, content fetching, and multi-step research.

Runs in the cloud★ 5,213MITUpdated last month

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

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.

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

All 7 principles →

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

License

MIT — Use it, fork it, build on it. No strings attached.

Discovery

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Search & AI memoryi

Common questions

Alternatives

Context7

Codebase Memory

Exa

README from the maker

Protocol Commerce

Contents

Quick Start

The Problem

Key Principles

Reference Implementation: Nexbid

Connect Any LLM

Why Formal Verification?

Sponsors

License

Links