Glossary
Model Context Protocol
Model Context Protocol is defined here as follows. Open protocol that connects an LLM application to external tools, resources, and prompts. Hosts, clients, and servers exchange JSON-RPC 2.0 messages. The directory source for this term is Model Context Protocol specification.
Last verified 2026-10-17
Sources
Listings
Directory listings whose sources describe this mechanism.
| Name | Status | Category | Open source | Mechanism |
|---|---|---|---|---|
| Gensyn | Live | Exchanges and markets | No | Open infrastructure where humans and machines trade compute, data, and information in on-chain markets, with a peer-to-peer layer that carries MCP and A2A. compute, data, information |
| Model Context Protocol | Live | Protocols | Yes | Open protocol that connects LLM applications to external tools, resources, and prompts through a standard request interface. tools, resources, prompts |
| Personal Agent Protocol | Designed | Protocols | Yes | Draft protocol for a company to publish how a personal agent may sign in and act on a person's account, using OAuth, OpenAPI, and MCP. consent, oauth, discovery |
| Universal Commerce Protocol | Live | Protocols | Yes | Open commerce protocol so agents, businesses, and payment providers can negotiate checkout and identity linking over REST, MCP, or A2A. commerce, checkout, discovery |
Questions
- What is Model Context Protocol?
- Open protocol that connects an LLM application to external tools, resources, and prompts. Hosts, clients, and servers exchange JSON-RPC 2.0 messages.
- Which listings use Model Context Protocol?
- Gensyn, Model Context Protocol, Personal Agent Protocol, Universal Commerce Protocol.
- When was Model Context Protocol last verified?
- Last verified 2026-10-17.