Agent infrastructure
Google's Agent-to-Agent protocol — a JSON-RPC envelope plus an /.well-known/agent-card.json descriptor that lets autonomous agents discover and call each other's capabilities. VC Deal Flow Signal publishes an AgentCard at /.well-known/agent-card.json and a JSON-RPC stub at /api/a2a so any A2A-compatible orchestrator can route deal-flow queries to the panel without bespoke integration.
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).
The canonical wire transport for MCP servers running over HTTP — a JSON-RPC 2.
A stateless remote-procedure-call protocol encoded in JSON — request envelopes carry method, params, and id; response envelopes carry result or error.
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. "A2A AgentCard." VC Deal Flow Signal Glossary, https://signals.gitdealflow.com/define/a2a-agent-card.
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