# marginalia A2A Agent

**Canonical:** https://apis.io/apis/polycode-co-uk/marginalia-a2a-agent/  
**Provider:** Polycode — https://apis.io/providers/polycode-co-uk/  
**Base URL:** https://marginalia.polycode.co.uk/api/a2a  
**Documentation:** https://marginalia.polycode.co.uk/

marginalia A2A Agent is one of 2 APIs that [Polycode](https://apis.io/providers/polycode-co-uk/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include A2A, Agents, Chat, and Memory. The published artifact set on APIs.io includes API documentation.

Agent2Agent (A2A) surface for marginalia: an agent card served from https://marginalia.polycode.co.uk/.well-known/agent-card.json (protocolVersion 0.3.0, JSONRPC, version 0.2.0) advertising three skills (open chat, recall memory, research projects) and a live JSON-RPC endpoint at https://marginalia.polycode.co.uk/api/a2a.

## Machine-readable artifacts (3)

- **AgentCard** — https://raw.githubusercontent.com/api-evangelist/polycode-co-uk/refs/heads/main/a2a/polycode-co-uk-a2a.yml
- **AgentCard** — https://marginalia.polycode.co.uk/.well-known/agent-card.json
- **Documentation** — https://gitlab.com/polycode-projects/marginalia/-/blob/main/README.md#talk-to-it--the-a2a-api

## Other Polycode APIs (1)

- [marginalia public API](https://apis.io/apis/polycode-co-uk/marginalia-public-api/)

## Tags

A2A, Agents, Chat, Memory

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/polycode-co-uk/marginalia-a2a-agent/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/polycode-co-uk/.