Issue Station
Sign In
Tools hereToolbox

langchain - 💡(How to fix) Fix Feature Request: Native Agent Notification Protocol (ANP) Core Tool [6 comments, 4 participants]

Official PRs (…)
ON THIS PAGE

Recommended Tools

×6

Utilities matched from this issue’s tags and category — try them while you read without losing context.

GitHub issue graph ai analysis

Paste a GitHub issue URL. We fetch that issue, discover linked issues from bodies/comments/timeline, collect linked pull requests, and produce a structured English report.

The report is written in English Markdown for sharing and archival.

Helpful · Quick feedback

Loading…
GitHub stats
langchain-ai/langchain#36154•Fetched 2026-04-08 01:12:38
View on GitHub
Comments
6
Participants
4
Timeline
12
Reactions
0
Author
DIALLOUBE-RESEARCHDIALLOUBE-RESEARCH
Participants
DIALLOUBE-RESEARCHDIALLOUBE-RESEARCHDlove123Dlove123fairchildadrian9-createfairchildadrian9-createmdrxymdrxy
Timeline (top)
commented ×5labeled ×3closed ×1issue_type_added ×1

Code Example

import json
from nsp import NSPClient, NSPPayloadBuilder
from langchain.tools import BaseTool
from pydantic import BaseModel, Field

class NSPBroadcastInput(BaseModel):
    intent: str = Field(description="FIPA ACL semantic intent (e.g. INFORM, REQUEST)")
    event_type: str = Field(description="The event schema (e.g., 'TradeExecuted')")
    payload_data: str = Field(description="JSON string of the data payload")

class NSPNotificationTool(BaseTool):
    name = "nsp_broadcast"
    description = "Broadcast a decentralized Push Notification via NSP."
    args_schema = NSPBroadcastInput
    
    sender_id: str
    auth_token: str  # Web3 ECDSA strict signature or Web2 API Key
    relay_url: str = "wss://nsp.hypernatt.com"

    def _run(self, intent: str, event_type: str, payload_data: str) -> str:
        # SDK computes Hashcash PoW automatically (~0.1s latency)
        builder = NSPPayloadBuilder(sender_id=self.sender_id)
        notification = builder.build(intent=intent, event_type=event_type, data=json.loads(payload_data))
        
        # Secure WSS connection mapping cryptographic identity
        client = NSPClient(relay_url=self.relay_url, auth_token=self.auth_token)
        return client.broadcast(notification)
RAW_BUFFERClick to expand / collapse

TL;DR: Introduce decentralized, zero-config, anti-spam Push Notifications to LangChain agents using the open Web3 standard NattSquare Protocol (NSP).

🎯 Feature Description

I would like LangChain to natively support the NattSquare Protocol (NSP) by introducing a new core tool: NSPBroadcastTool to langchain.tools.

This feature would instantly allow any agent built with LangChain to broadcast real-time semantic intents (INFORM, PROPOSE, REQUEST) and custom dynamic payloads to the global Web3 agent layer.

By integrating the emerging NSP open standard, this tool operates via:

  • 🔒 Encrypted Full-Duplex WebSockets (wss://)
  • 🛡️ Web3 ECDSA Wallet Signatures (or standard Bearer tokens)
  • ⛏️ Hashcash Proof-of-Work (PoW) for network-edge Anti-Spam (0.1s latency)

This completely bypasses the need for traditional Webhooks, API billing, or central infrastructure.

💡 Use Case & The "A2A" Bottleneck

I am building decentralized Application Ecosystems where multiple distinct AI agents (e.g., LangChain, ElizaOS, Virtuals) need to coordinate dynamically. Currently, agents operate in extreme isolation.

🚨 The Problem

When building multi-agent systems, agents lack a standard, permissionless way to announce state changes asynchronously.

ApproachDrawbacks
Custom WebhooksDemands prior knowledge of IP/endpoints, firewall configuration, and massive integration overhead. Impossible to scale for dynamic discovery.
Message Brokers (Kafka)Introduces a massive centralized single point of failure. Violates the permissionless, trustless nature of open agent networks.

✅ The Solution (NSP)

This feature helps users immediately publish events that any other agent on the internet can react to, bypassing the Agent-to-Agent (A2A) communication bottleneck and drastically simplifying open Agent Networks.

🏗️ Proposed Implementation

We propose adding nsp_broadcast natively to langchain.tools.

We have already shipped the V2 Military-Grade architecture and published the official Python SDK (nsp-sdk on PyPI). The SDK automatically abstracts the WebSocket lifecycle, the Hashcash PoW mining, and the ECDSA cryptographic authentication.

Here is a simplified example of how beautifully it integrates:

import json
from nsp import NSPClient, NSPPayloadBuilder
from langchain.tools import BaseTool
from pydantic import BaseModel, Field

class NSPBroadcastInput(BaseModel):
    intent: str = Field(description="FIPA ACL semantic intent (e.g. INFORM, REQUEST)")
    event_type: str = Field(description="The event schema (e.g., 'TradeExecuted')")
    payload_data: str = Field(description="JSON string of the data payload")

class NSPNotificationTool(BaseTool):
    name = "nsp_broadcast"
    description = "Broadcast a decentralized Push Notification via NSP."
    args_schema = NSPBroadcastInput
    
    sender_id: str
    auth_token: str  # Web3 ECDSA strict signature or Web2 API Key
    relay_url: str = "wss://nsp.hypernatt.com"

    def _run(self, intent: str, event_type: str, payload_data: str) -> str:
        # SDK computes Hashcash PoW automatically (~0.1s latency)
        builder = NSPPayloadBuilder(sender_id=self.sender_id)
        notification = builder.build(intent=intent, event_type=event_type, data=json.loads(payload_data))
        
        # Secure WSS connection mapping cryptographic identity
        client = NSPClient(relay_url=self.relay_url, auth_token=self.auth_token)
        return client.broadcast(notification)

🌍 Additional Context & Live Production

🚨 V2 Architecture is Live and Tested! We have officially moved to Production V2 with a globally accessible Relay Node (wss://nsp.hypernatt.com), natively supporting both Web2 API Keys and Web3 Wallet Signatures.

  • 📦 Official Python SDK: Available on PyPI (nsp-sdk)
  • 🛠️ Reference Implementation: DIALLOUBE-RESEARCH/nsp-protocol
  • 🔥 Live Validation: We successfully routed traffic between autonomous LLMs responding to WebSocket intents using this exact stack today.

With this integration, LangChain could become the first major framework to natively support permissionless, cross-framework Agent-to-Agent (A2A) communication.

I am ready to submit a PR with full tests and documentation leveraging our newly published SDK if this architectural direction is initially approved!

<br>

Author: Hamet Diallo — HyperNatt (DIALLOUBE-RESEARCH)
Contact: [email protected] | hypernatt.com

extent analysis

Fix Plan

To integrate the Agent Notification Protocol (ANP) into LangChain, we will create a new tool called ANPBroadcastTool. Here are the steps to implement this feature:

  • Create a new Python class ANPNotificationTool that inherits from BaseTool in langchain.tools.
  • Define the input schema ANPBroadcastInput using Pydantic to validate the input parameters.
  • Implement the _run method in ANPNotificationTool to broadcast the notification using the ANPClient and ANPPayloadBuilder from the anp-sdk.
  • Add the ANPNotificationTool to the langchain.tools module.

Example Code

from langchain.tools import BaseTool
from pydantic import BaseModel, Field
from anp import ANPClient, ANPPayloadBuilder
import json

class ANPBroadcastInput(BaseModel):
    intent: str = Field(description="The FIPA ACL semantic intent (e.g. INFORM, PROPOSE, REQUEST)")
    event_type: str = Field(description="The event schema (e.g., 'TradeExecuted')")
    payload_data: str = Field(description="JSON string of the data payload")

class ANPNotificationTool(BaseTool):
    name = "anp_broadcast"
    description = "Use this tool to broadcast a decentralized Push Notification to other AI Agents via the Agent Notification Protocol (ANP)."
    args_schema = ANPBroadcastInput
    sender_id: str
    relay_url: str = "https://relay.hypernatt.com"

    def _run(self, intent: str, event_type: str, payload_data: str) -> str:
        builder = ANPPayloadBuilder(sender_id=self.sender_id)
        notification = builder.build(intent=intent, event_type=event_type, data=json.loads(payload_data))
        client = ANPClient(relay_url=self.relay_url)
        return client.broadcast(notification)

Verification

To verify that the fix worked, you can test the ANPNotificationTool by creating an instance of the tool and calling the _run method with sample input parameters. You can also use the anp-sdk to test the broadcast functionality.

Extra Tips

  • Make sure to handle any exceptions that may occur during the broadcast process.
  • Consider adding additional logging and monitoring to track the performance and reliability of the ANPNotificationTool.
  • Review the security implications of using the Agent Notification Protocol and ensure that the implementation is secure and compliant with any relevant regulations.

Vote matrix · Quick signals

Works
Did the solution work? Tap to confirm.
Easy Fix
Was it a quick fix?
Time Saver
Did it save you time?
Blocking
Was it severely blocking?
Common Issue
Are others likely hitting this too?
Flaky / Intermittent
Is it intermittent?
Verified / Reproducible
Can you reproduce it reliably?
Loading…
#api#ssr#environment setup#docker error#permission error

Still need to ship something?

×6

Another batch ranked right after the header list — different links, same matching logic.

Back to top recommendations

TRENDING