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KG-NINJA

KG-NINJA MCP API

Stateless MCP Streamable HTTP transport

Documentation Provider Profile APIs.io OpenAPI GitHub

KG-NINJA MCP API is one of 10 APIs that KG-NINJA publishes on the 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.

This API exposes 7 operations across 7 paths, and defines 4 schemas. It is described by OpenAPI 3.2.0, at version 0.4.3.

Requests are made against a single base URL, /.

7 operations 7 paths 4 schemas 6 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
0.4.3
Base URL
https://agent-economy.kgninja.dev/mcp
Authentication
HTTP Bearer
License
UNLICENSED
Resource Areas
1

Authentication & Security 1

KG-NINJA MCP API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (signed anonymous registration receipt) (agentRegistration).

  • agentRegistration — Optional 15-minute service-local receipt used only to inspect its own registration claim. It grants no API access and does not authorize payment.

Paths & Operations 7

Across 7 paths, the API surfaces 7 operations — 6 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

MCP 7

Stateless MCP Streamable HTTP transport

GET
/server.json
Get the official MCP Registry publication document
getMcpRegistryServer → 200
GET
/mcp/server.json
Get the MCP Registry publication document beside the MCP endpoint
getMcpRegistryServerAlias → 200
GET
/.well-known/mcp-registry-auth
Get the optional MCP Registry HTTP domain-ownership proof
getMcpRegistryHttpProof → 200404
GET
/docs/mcp-x402-interoperability
Read the MCP and x402 interoperability guide
getMcpX402InteroperabilityGuide → 200
GET
/webmcp.js
Get the feature-detected browser WebMCP bridge
getWebMcpBridge → 200
GET
/mcp/server-card
Get the current experimental MCP Server Card
getCurrentMcpServerCard → 200304
POST
/mcp
Stateless MCP SDK v2 Streamable HTTP endpoint
mcpStreamableHttp body → 200400429503

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are PaidVerificationBinding (17 properties), ErrorResponse (1 property). Each schema is shown below with its type and property counts.

Sha256Digest
string
ErrorResponse
object
1 property 1 required
RefusedPaidVerificationBinding
PaidVerificationBinding
object
The immutable spend binding. quoted/paymentrequired have no paid receipt or refusal; refused has a refusal reason and no paid receipt; delivered has a paid rec…
17 properties 17 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

kgninja-dev-mcp-api-openapi.yml Raw ↑

Other APIs KG-NINJA publishes across the network.

Agent Verification Utility MCP Server
AE Profile APIs.io
Agent Verification Utility A2A Agent
AE Profile APIs.io
KG-NINJA A2a API
AE Profile APIs.io
KG-NINJA Decision Support API
AE Profile APIs.io
KG-NINJA Discovery API
AE Profile APIs.io
KG-NINJA Goals API
AE Profile APIs.io
KG-NINJA Operations API
AE Profile APIs.io
KG-NINJA Purchase API
AE Profile APIs.io
KG-NINJA Registration API
AE Profile APIs.io
#MCP
← Back to K APIs
API Details
ID
kgninja-dev:kgninja-dev-mcp-api
Base URL
https://agent-economy.kgninja.dev/mcp
Docs
https://agent-economy.kgninja.dev/
Provider
KG-NINJA
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Where this information came from

This is an independent, third-party profile of KG-NINJA MCP API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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