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Agent infrastructure
A stateless remote-procedure-call protocol encoded in JSON — request envelopes carry method, params, and id; response envelopes carry result or error. JSON-RPC 2.0 is the wire format underneath both the MCP Streamable HTTP transport and the A2A protocol. VC Deal Flow Signal exposes JSON-RPC 2.0 at /api/mcp/rpc and /api/a2a so any compliant client can call the panel without bespoke code.
MCP, A2A, micropayments, identity, federation.
An open standard from Anthropic for exposing tools and data to large-language-model hosts (Claude Desktop, Cursor, agentic frameworks).
Google's Agent-to-Agent protocol — a JSON-RPC envelope plus an /.
The canonical wire transport for MCP servers running over HTTP — a JSON-RPC 2.
An open standard for HTTP per-request micropayments using the existing 402 Payment Required status code.
An RFC 7033 protocol for discovering information about a user or resource at a domain by querying /.
A W3C-standard identifier scheme that lets entities prove control of an identifier without relying on a centralised registry.
The Fediverse-standard discovery protocol for federated services, served at /.
This definition is published under CC BY 4.0. Cite as:
The Data Nerd. "JSON-RPC 2.0." VC Deal Flow Signal Glossary, https://signals.gitdealflow.com/define/json-rpc-2.
The free Acceleration Watch turns terms like JSON-RPC 2.0 into five named, accelerating startups every Sunday — translated into plain English, 21 to 47 days before the deck circulates. No code-reading, no card.