# 2s A2A Agent

**Canonical:** https://apis.io/apis/2s-io/2s-a2a-agent/  
**Provider:** 2s — https://apis.io/providers/2s-io/  
**Base URL:** https://2s.io/a2a  
**Documentation:** https://2s.io/llms.txt

2s A2A Agent is one of 3 APIs that [2s](https://apis.io/providers/2s-io/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include A2A, Agent-Native, and x402.

Agent2Agent (A2A) protocol surface: an agent card served from https://2s.io/.well-known/agent-card.json (protocolVersion 0.3.0, JSONRPC transport, version 1.0.0, provider 2s) advertising a single skill, discover-endpoints — send a natural-language task as text/plain to the JSON-RPC endpoint at https://2s.io/a2a and receive the best-matching 2s endpoints (id, path, method, group, description, per-call price) as application/json, ranked deterministically over the live catalog. Discovery is free; the endpoints it returns are x402-paid. The endpoint implements only message/send (tasks/get and the extended card return -32601); streaming, push notifications and state history are declared unsupported.

## Machine-readable artifacts (2)

- **AgentCard** — https://raw.githubusercontent.com/api-evangelist/2s-io/refs/heads/main/a2a/2s-io-a2a.yml
- **AgentCard** — https://2s.io/.well-known/agent-card.json

## Other 2s APIs (2)

- [2s API](https://apis.io/apis/2s-io/2s-api/)
- [2s MCP Server](https://apis.io/apis/2s-io/2s-mcp-server/)

## Tags

A2A, Agent-Native, x402

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/2s-io/2s-a2a-agent/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/2s-io/.