# KG-NINJA MCP API

**Canonical:** https://apis.io/apis/kgninja-dev/kgninja-dev-mcp-api/  
**Provider:** KG-NINJA — https://apis.io/providers/kgninja-dev/  
**Base URL:** https://agent-economy.kgninja.dev/mcp  
**Documentation:** https://agent-economy.kgninja.dev/

KG-NINJA MCP API is one of 10 APIs that [KG-NINJA](https://apis.io/providers/kgninja-dev/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include MCP. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and a getting-started guide.

Stateless MCP Streamable HTTP transport

## Operations (7)

| Method | Path | Summary |
|---|---|---|
| GET | `/server.json` | Get the official MCP Registry publication document |
| GET | `/mcp/server.json` | Get the MCP Registry publication document beside the MCP endpoint |
| GET | `/.well-known/mcp-registry-auth` | Get the optional MCP Registry HTTP domain-ownership proof |
| GET | `/docs/mcp-x402-interoperability` | Read the MCP and x402 interoperability guide |
| GET | `/webmcp.js` | Get the feature-detected browser WebMCP bridge |
| GET | `/mcp/server-card` | Get the current experimental MCP Server Card |
| POST | `/mcp` | Stateless MCP SDK v2 Streamable HTTP endpoint |

## Machine-readable artifacts (7)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/kgninja-dev/refs/heads/main/openapi/kgninja-dev-mcp-api-openapi.yml
- **Documentation** — https://agent-economy.kgninja.dev/docs/deterministic-json-verification
- **APIReference** — https://agent-economy.kgninja.dev/openapi.json
- **GettingStarted** — https://agent-economy.kgninja.dev/index.md
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/kgninja-dev/refs/heads/main/conventions/kgninja-dev-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/kgninja-dev/refs/heads/main/errors/kgninja-dev-problem-types.yml
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/kgninja-dev/refs/heads/main/data-model/kgninja-dev-data-model.yml

## Other KG-NINJA APIs (9)

- [Agent Verification Utility MCP Server](https://apis.io/apis/kgninja-dev/agent-verification-utility-mcp-server/)
- [Agent Verification Utility A2A Agent](https://apis.io/apis/kgninja-dev/agent-verification-utility-a2a-agent/)
- [KG-NINJA A2a API](https://apis.io/apis/kgninja-dev/kgninja-dev-a2a-api/)
- [KG-NINJA Decision Support API](https://apis.io/apis/kgninja-dev/kgninja-dev-decision-support-api/)
- [KG-NINJA Discovery API](https://apis.io/apis/kgninja-dev/kgninja-dev-discovery-api/)
- [KG-NINJA Goals API](https://apis.io/apis/kgninja-dev/kgninja-dev-goals-api/)
- [KG-NINJA Operations API](https://apis.io/apis/kgninja-dev/kgninja-dev-operations-api/)
- [KG-NINJA Purchase API](https://apis.io/apis/kgninja-dev/kgninja-dev-purchase-api/)
- [KG-NINJA Registration API](https://apis.io/apis/kgninja-dev/kgninja-dev-registration-api/)

## Tags

MCP

---

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