Install in 60 seconds. Authorise in five.

// npm i @kye/sdk
import { KyeClient } from "@kye/sdk";

const kye = new KyeClient({ baseUrl: "https://gw.example/v1" });

const decision = await kye.authorize({
  actor:               { entity_id: "kye:ent:acme:ai_agent:01J..." },
  acting_on_behalf_of: { delegation_id: "kye:del:acme:01J..." },
  action:              "document.render",
});

if (decision.decision !== "allow_with_constraints") throw new Error(decision.reasons.join(","));

// → { decision: "allow_with_constraints", obligations: ["audit.emit"],
//     stop_conditions: ["actor.stop_signal","delegation.revoked",...] }

# pip install kye-sdk
from kye_sdk import KyeClient

kye = KyeClient(base_url="https://gw.example/v1")

decision = kye.authorize({
    "actor":               {"entity_id": "kye:ent:acme:ai_agent:01J..."},
    "acting_on_behalf_of": {"delegation_id": "kye:del:acme:01J..."},
    "action":              "document.render",
})

assert decision["decision"] == "allow_with_constraints", decision["reasons"]

// go get github.com/kye-protocol/sdk-go
package main

import (
    "context"
    "github.com/kye-protocol/sdk-go/pkg/kye"
)

func main() {
    c := kye.NewClient("https://gw.example")
    d, err := c.Authorize(context.Background(), kye.AuthorizeRequest{
        Action: "document.render",
        Actor:  kye.Actor{EntityID: "kye:ent:acme:ai_agent:01J..."},
    })
    if err != nil { panic(err) }
    // d.Decision == "allow_with_constraints"
    _ = d
}

# Plain HTTP — no SDK required
curl -X POST https://gw.example/v1/runtime/authorize \
  -H 'content-type: application/json' \
  -H 'idempotency-key: 8c4a-...' \
  -d '{
    "actor":               { "entity_id": "kye:ent:acme:ai_agent:01J..." },
    "acting_on_behalf_of": { "delegation_id": "kye:del:acme:01J..." },
    "action":              "document.render"
  }'

# → { "decision":"allow_with_constraints", "reasons":["delegation_active","scope_match"], ... }