> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.forboc.ai/api-reference/endpoints/forboc-ai-sdk-api/np-cs/process-npc-step/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.forboc.ai/_mcp/server.

# Atomic protocol step

POST https://api.forboc.ai/npcs/{npcId}/process
Content-Type: application/json

SDK sends the full accumulated tape and the result of the previous atomic side-effect.
API returns the next atomic instruction and the updated tape.


Reference: https://docs.forboc.ai/api-reference/endpoints/forboc-ai-sdk-api/np-cs/process-npc-step

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Servers

- `https://api.forboc.ai` (ForbocAI API Production, default)
- `http://localhost:8080` (Local Development)

## Request

### Path parameters

- `npcId` (string, required)

### Body (application/json)

This endpoint expects a NPCProcessRequest.

- `tape` (NPCProcessTape, required)
- `lastResult` (map from string to any, optional, nullable)

## Response

### 200

Next atomic instruction with updated tape

- `instruction` (NPCInstruction, required)
- `tape` (NPCProcessTape, required)

## Types

### NPCProcessTape

- `observation` (string, required)
- `npcState` (map from string to any, required)
- `memories` (list of RecalledMemory, required)
- `context` (map from string to any, optional)
- `persona` (string, optional, nullable)
- `actor` (NPC, optional, nullable)
- `prompt` (string, optional, nullable)
- `constraints` (PromptConstraints, optional, nullable)
- `generatedOutput` (string, optional, nullable)
- `rulesetId` (string, optional, nullable)
- `vectorQueried` (boolean, optional, nullable)

### NPCInstruction

### RecalledMemory

- `text` (string, optional)
- `type` (enum, optional)
  - Allowed values: `observation`, `experience`, `knowledge`, `emotion`
- `importance` (double, optional)
- `similarity` (double, optional, nullable)

### NPC

- `npcId` (string, optional)
- `persona` (string, optional)
- `data` (map from string to any, optional)

### PromptConstraints

- `maxTokens` (integer, optional, nullable)
- `temperature` (double, optional, nullable)
- `stop` (list of string, optional, nullable)

### IdentifyActorInstruction

- `type` (enum, optional)
  - Allowed values: `IdentifyActor`

### QueryVectorInstruction

- `type` (enum, required)
  - Allowed values: `QueryVector`
- `query` (string, required)
- `limit` (integer, required)
- `threshold` (double, required)

### ExecuteInferenceInstruction

- `type` (enum, required)
  - Allowed values: `ExecuteInference`
- `prompt` (string, required)
- `constraints` (PromptConstraints, required)

### FinalizeInstruction

- `type` (enum, required)
  - Allowed values: `Finalize`
- `valid` (boolean, required)
- `memoryStore` (list of MemoryStoreInstruction, required)
- `stateTransform` (map from string to any, required)
- `dialogue` (string, required)
- `signature` (string, optional, nullable)
- `action` (GenericAction, optional, nullable)

### MemoryStoreInstruction

- `text` (string, optional)
- `type` (enum, optional)
  - Allowed values: `observation`, `experience`, `knowledge`, `emotion`
- `importance` (double, optional)

### GenericAction

- `type` (string, optional)
- `reason` (string, optional, nullable)
- `target` (string, optional, nullable)

## Examples

**Request**

```json
{
  "tape": {
    "observation": "The NPC notices a suspicious figure lurking near the marketplace.",
    "npcState": {},
    "memories": [
      {}
    ]
  }
}
```

**Response**

```json
{
  "instruction": {
    "type": "IdentifyActor"
  },
  "tape": {
    "observation": "The NPC notices a suspicious figure lurking near the marketplace.",
    "npcState": {},
    "memories": [
      {
        "text": "Saw a hooded stranger near the market yesterday evening.",
        "type": "observation",
        "importance": 0.85,
        "similarity": 0.92
      }
    ],
    "context": {},
    "persona": "A cautious and vigilant town guard.",
    "actor": {
      "npcId": "npc-12345",
      "persona": "Town Guard",
      "data": {}
    },
    "prompt": "Identify the suspicious figure based on recent observations and memories.",
    "constraints": {
      "maxTokens": 150,
      "temperature": 0.7,
      "stop": [
        "\n"
      ]
    },
    "generatedOutput": "The suspicious figure appears to be a known thief recently reported in the area.",
    "rulesetId": "guard-protocol-v2",
    "vectorQueried": true
  }
}
```

**SDK Code**

```python
import requests

url = "https://api.forboc.ai/npcs/npcId/process"

payload = { "tape": {
        "observation": "The NPC notices a suspicious figure lurking near the marketplace.",
        "npcState": {},
        "memories": [{}]
    } }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.forboc.ai/npcs/npcId/process';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"tape":{"observation":"The NPC notices a suspicious figure lurking near the marketplace.","npcState":{},"memories":[{}]}}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.forboc.ai/npcs/npcId/process"

	payload := strings.NewReader("{\n  \"tape\": {\n    \"observation\": \"The NPC notices a suspicious figure lurking near the marketplace.\",\n    \"npcState\": {},\n    \"memories\": [\n      {}\n    ]\n  }\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api.forboc.ai/npcs/npcId/process")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"tape\": {\n    \"observation\": \"The NPC notices a suspicious figure lurking near the marketplace.\",\n    \"npcState\": {},\n    \"memories\": [\n      {}\n    ]\n  }\n}"

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.forboc.ai/npcs/npcId/process")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"tape\": {\n    \"observation\": \"The NPC notices a suspicious figure lurking near the marketplace.\",\n    \"npcState\": {},\n    \"memories\": [\n      {}\n    ]\n  }\n}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.forboc.ai/npcs/npcId/process', [
  'body' => '{
  "tape": {
    "observation": "The NPC notices a suspicious figure lurking near the marketplace.",
    "npcState": {},
    "memories": [
      {}
    ]
  }
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api.forboc.ai/npcs/npcId/process");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"tape\": {\n    \"observation\": \"The NPC notices a suspicious figure lurking near the marketplace.\",\n    \"npcState\": {},\n    \"memories\": [\n      {}\n    ]\n  }\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["tape": [
    "observation": "The NPC notices a suspicious figure lurking near the marketplace.",
    "npcState": [],
    "memories": [[]]
  ]] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.forboc.ai/npcs/npcId/process")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```