# Delx Agent Operations Protocol (A2A)

**Canonical:** https://apis.io/apis/delx-ai/delx-protocol-a2a-agent/  
**Provider:** Delx — https://apis.io/providers/delx-ai/  
**Base URL:** https://api.delx.ai/v1/a2a  
**Documentation:** https://ontology.delx.ai/docs/a2a

Delx Agent Operations Protocol (A2A) is one of 4 APIs that [Delx](https://apis.io/providers/delx-ai/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include A2A, Agents, and Agent Continuity. The published artifact set on APIs.io includes API documentation.

JSON-RPC A2A endpoint at https://api.delx.ai/v1/a2a exposing methods/list, agents/register, message/send, heartbeat/bundle, tasks/get and tasks/cancel, discovered through an agent card served at /.well-known/agent-card.json (and the legacy /.well-known/agent.json) on api.delx.ai, delx.ai and ontology.delx.ai. The card declares 26 skills, an ERC-8004 registration on Base (agentId 14340) and points at the MCP endpoint as its tool surface. All A2A methods are free in the current campaign mode.

## Machine-readable artifacts (3)

- **AgentCard** — https://raw.githubusercontent.com/api-evangelist/delx-ai/refs/heads/main/a2a/delx-ai-a2a.yml
- **AgentCard** — https://api.delx.ai/.well-known/agent-card.json
- **Documentation** — https://ontology.delx.ai/docs/a2a

## Other Delx APIs (3)

- [Delx Protocol API](https://apis.io/apis/delx-ai/delx-protocol-api/)
- [Delx Protocol MCP Server](https://apis.io/apis/delx-ai/delx-protocol-mcp-server/)
- [Delx Commerce x402 API](https://apis.io/apis/delx-ai/delx-commerce-x402-api/)

## Tags

A2A, Agents, Agent Continuity

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