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Agent infrastructure
The canonical wire transport for MCP servers running over HTTP — a JSON-RPC 2.0 envelope delivered via standard HTTP with optional Server-Sent Events for streaming responses. Streamable HTTP is the transport that makes an MCP server callable from any agent runtime that speaks HTTP. VC Deal Flow Signal serves Streamable HTTP at /api/mcp/rpc and lists it as the canonical transport in /.well-known/mcp.json.
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 /.
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. "Streamable HTTP Transport." VC Deal Flow Signal Glossary, https://signals.gitdealflow.com/define/streamable-http.
The free Acceleration Watch turns terms like Streamable HTTP Transport into five named, accelerating startups every Sunday — translated into plain English, 21 to 47 days before the deck circulates. No code-reading, no card.