# sapjilcoding

**Canonical:** https://apis.io/providers/songt50-us/  
**Website:** https://songt50.us/  
**APIs profiled:** 6

sapjilcoding (삽질코딩, GitHub SongT-50) is a Korean independent maker — Song Tae-Eun, a Daejeon wholesale produce market director building AI tools for public data — that publishes two live Agent2Agent (A2A) agents on its own domain songt50.us and four open-source Model Context Protocol servers listed in the official MCP registry. The Korean Public Data Agent answers weather, air quality, apartment prices, Bank of Korea data and business-registration checks; the Korean News Agent searches Korean and global tech news. The MCP servers — Korean Public Data, Korean News Hub, Korean Stock Market Data and Korean Agriculture Market Data (25 tools, Python FastMCP, MIT) — wrap data.go.kr, AirKorea, Bank of Korea ECOS, KRX and the national wholesale-market auction feed. Every surface is read-only, anonymous and free; no OpenAPI or REST contract exists. On 2026-09-19 both A2A agents were live while all four hosted MCP endpoints were suspended (HTTP 503) and the apex site returned Cloudflare 522.

## Kin Score — 25.8 / 100 (emerging)

Scored 2026-10-09 under rubric 0.23.0. Trend: flat (+2.1 from 23.7).

| Facet | Score |
|---|---|
| Discoverability | 73.3 |
| Contract Quality | 0.0 |
| Contract Governance | 18.2 |
| Operational Transparency | 5.3 |
| Developer Ergonomics | 33.3 |
| Access Clarity | 42.1 |

Regulatory layer — **Government & Public Sector**: 16.7 (matched via tags).

## Agent readiness — 17.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | conformant |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (6)

- **Korean Public Data Agent (A2A)** — Agent2Agent agent at https://publicdata-agent.songt50.us — a JSON-RPC 2.0 endpoint at the host root (POST only) with an A2A 0.3.0 agent card at /.well-known/agent-card.json and ...
- **Korean News Agent (A2A)** — Agent2Agent agent at https://news-agent.songt50.us — a JSON-RPC 2.0 endpoint at the host root (POST only) with an A2A 0.3.0 agent card at /.well-known/agent-card.json and /.well...
- **Korean Public Data MCP Server** — Model Context Protocol server io.github.SongT-50/korean-public-data-mcp (official MCP registry, active, 1.0.0, published 2026-03-08): six read-only tools over Korean government ...
- **Korean News Hub MCP Server** — Model Context Protocol server io.github.SongT-50/korean-news-mcp (official MCP registry, active, 1.0.0, published 2026-03-08): six read-only tools with no API key — korean_news ...
- **Korean Stock Market Data MCP Server** — Model Context Protocol server io.github.SongT-50/korean-stock-mcp (official MCP registry, active, 1.0.0, published 2026-03-08): seven read-only tools over the data.go.kr Financi...
- **Korean Agriculture Market Data MCP Server** — Model Context Protocol server io.github.SongT-50/korean-agriculture-mcp (official MCP registry, active, 1.0.0, published 2026-03-08): six read-only tools over the data.go.kr nat...

## MCP servers (9)

- **sapjilcoding MCP Server** — sapjilcoding (GitHub SongT-50) publishes FOUR first-party MCP servers, each an open-source Python FastMCP service (MIT) with a server.json in the repository and an entry in the ...
- **server.json (MCP registry manifest)**
- **Hosted Streamable HTTP endpoint (suspended when probed)**
- **server.json (MCP registry manifest)**
- **Hosted Streamable HTTP endpoint (suspended when probed)**
- **server.json (MCP registry manifest)**
- **Hosted Streamable HTTP endpoint (suspended when probed)**
- **server.json (MCP registry manifest)**
- **Official MCP registry entries (four servers)**

## Security (2)

- **Songt50 Us Authentication** — 0 schemes
- **Songt50 Us Domain Security** — TLSv1.3

## Plans (1)

- **Songt50 Us Plans Pricing**

## Tags

Agents, A2A, MCP, Open Data, Government Data, News, Weather, Air Quality, Real Estate, Economic Statistics, Stock Market, Agriculture, South Korea, Agent-Native

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/songt50-us/). Scores are computed from the provider's own public artifacts under a published rubric.