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KG-NINJA

KG-NINJA Decision Support API

Free use-case selection and request validation before payment

Documentation Provider Profile APIs.io OpenAPI GitHub

KG-NINJA Decision Support 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 Decision Support. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and a getting-started guide.

This API exposes 3 operations across 3 paths, and defines 21 schemas. It is described by OpenAPI 3.2.0, at version 0.4.3.

Requests are made against a single base URL, /.

3 operations 3 paths 21 schemas 2 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 Decision Support 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 3

Across 3 paths, the API surfaces 3 operations — 2 GET, 1 POST. Each is listed below with its method, path, parameters, and response codes.

decision-support 3

Free use-case selection and request validation before payment

GET
/verification-recipes.json
Get deterministic verification use-case recipes
getVerificationRecipes → 200503
GET
/.well-known/verification-recipes.json
Get verification recipes from the well-known alias
getWellKnownVerificationRecipes → 200503
POST
/validate-request
Validate a verification request for free without executing it
validateVerificationRequest body → 200400503

Schemas 21

The contract defines 21 schemas that model the data the API accepts and returns. The most detailed are PaidVerificationBinding (17 properties), FreeRequestValidation (16 properties), PrecheckReceipt (15 properties), MachineQuote (13 properties). Each schema is shown below with its type and property counts.

JsonPointer
string
RFC 6901 JSON Pointer; the empty string addresses the whole document.
VerificationSpendPolicy
object
5 properties 5 required
MachineQuote
object
13 properties 13 required
VerificationPrecheckIntent
object
2 properties 2 required
Sha256Digest
string
FreeRequestValidation
object
16 properties 16 required
InlineJsonEvidence
object
2 properties 2 required
PrecheckReceipt
object
15 properties 15 required
JsonPointerExistsAssertion
object
2 properties 2 required
VerificationRecipes
object
6 properties 6 required
Assertion
RefusedPaidVerificationBinding
VerifyEvidenceRequest
object
3 properties 3 required
Sha256EqualsAssertion
object
2 properties 2 required
CanonicalOffer
object
10 properties 10 required
JsonPointerEqualsAssertion
object
3 properties 3 required
CanonicalSchemaReference
object
2 properties 2 required
ErrorResponse
object
1 property 1 required
FreeRequestValidationFailure
object
12 properties 12 required
JsonTypeIsAssertion
object
3 properties 3 required
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-decision-support-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 Discovery API
AE Profile APIs.io
KG-NINJA Goals API
AE Profile APIs.io
KG-NINJA MCP 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
#Decision Support
← Back to K APIs
API Details
ID
kgninja-dev:kgninja-dev-decision-support-api
Base URL
https://agent-economy.kgninja.dev/mcp
Docs
https://agent-economy.kgninja.dev/
Provider
KG-NINJA
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