MCP server · KG-NINJA

kgninja-dev-mcp.yml

KG-NINJA operates ONE remote MCP server at https://agent-economy.kgninja.dev/mcp — the same origin as its website, OpenAPI and A2A endpoint. It is stateless Streamable HTTP, POST only (GET returns 405 with details.allowed "POST"), negotiated protocol version 2025-06-18 in a live initialize (the server card declares 2026-07-28, 2025-11-25, 2025-06-18 and 2025-03-26 as supported), identifies itself as serverInfo {name: dev.kgninja/agent-verification-utility, version: 0.4.3}, and answers initialize and tools/list anonymously with five tools that carry real JSON Schema 2020-12 inputSchemas AND MCP tool annotations (readOnlyHint, destructiveHint, idempotentHint, openWorldHint). resources/list and prompts/list return -32601 Method not found. Four tools are free; verify_evidence is paid: an unpaid call returns a tool error whose _meta["x402/error"] carries an x402 v2 PaymentRequired document plus a paid verification binding, and the identical call is retried with the encoded payment in _meta["x402/payment"]. Anonymous tools/list succeeded, so authorship is knowable: the tool names, the dev.kgninja namespace and the _meta extension keys (dev.kgninja/offer-generation, dev.kgninja/decision-support, dev.kgninja/x402) are specific to this provider and match no shared platform fingerprint — this is a provider-built server, not a Wix/Shopify/Mintlify/WordPress-plugin surface.

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Provider: KG-NINJA Type: Documentation link Transport: Host: agent-economy.kgninja.dev

Documentation

https://agent-economy.kgninja.dev/mcp

Documentation link · transport

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