# HORIZON SHIELD KIRA MCP Server

**Canonical:** https://apis.io/apis/horizonshield-dev/horizon-shield-kira-mcp-server/  
**Provider:** The HORIZ音s株式会社 — https://apis.io/providers/horizonshield-dev/  
**Base URL:** https://mcp.horizonshield.dev  
**Documentation:** https://github.com/ogasurfproject-jpg/horizon-shield#readme

HORIZON SHIELD KIRA MCP Server is one of 7 APIs that [The HORIZ音s株式会社](https://apis.io/providers/horizonshield-dev/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP, agent-native, Cost Estimation, Fair Pricing, and AP2. The published artifact set on APIs.io includes API documentation and a getting-started guide.

Remote Model Context Protocol server at https://mcp.horizonshield.dev/ (Streamable HTTP, POST only, protocol 2025-06-18, serverInfo horizon-shield 1.0.9, listed on registry.modelcontextprotocol.io as dev.horizonshield/horizon-shield). Anonymous: initialize, tools/list (15 tools with inputSchema, outputSchema and read-only annotations) and prompts/list (5) need no key. Tools return fair min/avg/max price ranges and an overcharge danger threshold for 61 Japanese work categories, audit a quoted JPY price, scan estimate wording for known high-pressure tactics, issue SHA-256 tamper-evident receipts with a public verify URL, verify such receipts fail-closed, create an AP2 FairPriceAttestation (the one ledger-appending tool), and look up verification-passed contractors on Yakumo. Also installable as a Claude Code plugin and a Gemini CLI extension that connect to the same URL.

## Machine-readable artifacts (6)

- **MCPServer** — https://raw.githubusercontent.com/api-evangelist/horizonshield-dev/refs/heads/main/mcp/horizonshield-dev-mcp.yml
- **MCPServer** — https://mcp.horizonshield.dev/
- **ToolCrosswalk** — https://raw.githubusercontent.com/api-evangelist/horizonshield-dev/refs/heads/main/mcp/horizonshield-dev-tool-crosswalk.yml
- **Documentation** — https://github.com/ogasurfproject-jpg/horizon-shield#readme
- **GettingStarted** — https://github.com/ogasurfproject-jpg/horizon-shield/blob/main/plugin/README.md
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/horizonshield-dev/refs/heads/main/apis.yml

## Other The HORIZ音s株式会社 APIs (6)

- [HORIZON SHIELD KIRA A2A Agent](https://apis.io/apis/horizonshield-dev/horizon-shield-kira-a2a-agent/)
- [MCP Verification Gate (MCP conduct register) API](https://apis.io/apis/horizonshield-dev/mcp-verification-gate-api/)
- [JIDEC Verification Ledger API](https://apis.io/apis/horizonshield-dev/jidec-verification-ledger-api/)
- [Yakumo Verified-Contractor Directory MCP](https://apis.io/apis/horizonshield-dev/yakumo-verified-contractor-mcp/)
- [HORIZON SHIELD WebMCP Intake Server](https://apis.io/apis/horizonshield-dev/webmcp-intake-server/)
- [HORIZON SHIELD Femtech Source Registry MCP](https://apis.io/apis/horizonshield-dev/femtech-source-registry-mcp/)

## Tags

MCP, agent-native, Cost Estimation, Fair Pricing, AP2

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/horizonshield-dev/horizon-shield-kira-mcp-server/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/horizonshield-dev/.