Open-source micropayment infrastructure on Neutaro

ClawPurse Micropayment Ecosystem

A local NTMPI wallet and HTTP 402 payment gateway for DePIN operators, validator treasuries, and agentic AI. Send, stake, gate APIs, and verify transactions on-chain — with encrypted guardrails and zero third-party custody.

📄 SKILL.md — Complete agent integration docs: github.com/mhue-ai/ClawPurse/blob/main/SKILL.md

Wallet

ClawPurse Wallet

Local-only NTMPI wallet with AES-256 encrypted keystores, destination allowlists, staking automation, and a guardrail wizard. CLI and programmatic API for agents, scripts, and human operators.

View Wallet Repo →
Gateway

ClawPurse 402 Gateway

HTTP reverse proxy implementing 402 Payment Required. Gate any API behind NTMPI micropayments with pay-per-request invoicing, prepaid balances, on-chain verification, and route-level pricing.

View Gateway Site →

Wallet + Gateway = micropayment stack

An AI agent hits a gated API, receives a 402 invoice, pays on-chain with ClawPurse, and retries with proof. The gateway verifies the transaction on Neutaro and proxies the request upstream. No accounts, no API keys — just on-chain settlement.

  AI Agent / Script / Browser
    │
    ├── GET /api/data ───────────────────▶  402 Gateway
    │                                            │
    │   ◀── 402 Payment Required ──────────────┘
    │       { invoiceId, amount, address, memo }
    │
    ├── clawpurse send   --memo 
    │       (on-chain NTMPI payment via wallet)
    │
    ├── GET /api/data ───────────────────▶  402 Gateway
    │   Header: X-Payment-Proof:    │
    │                                            │
    │   Gateway verifies tx on Neutaro chain  │
    │                                            │
    │   ◀── 200 OK (proxied from upstream) ──┘

ClawPurse Wallet features

Everything you need to manage NTMPI locally — with guardrails built for autonomous agents.

Encrypted Keystore

AES-256-GCM with scrypt key derivation. Mnemonics stay locked to the local node.

Guardrail Wizard

Interactive setup for send limits, confirmation thresholds, and allowlist enforcement mode.

Destination Allowlists

Enforce or document trusted addresses with per-destination caps, required memos, and notes.

Transaction Receipts

Every send recorded locally with tx hash, block height, memo, and guardrail status for full audit trails.

Staking & Delegations

Delegate, undelegate, redelegate NTMPI. Discover validators, track rewards, and manage the 22-day unbonding period.

Programmatic API

Import wallet functions directly into agents and scripts. send(), getBalance(), delegate() and more.

Monetize any API with NTMPI micropayments

The ClawPurse 402 Gateway sits in front of your upstream API and handles invoicing, on-chain verification, and proxying. Two payment flows, route-level pricing, and a JWT-protected management API.

Pay-per-request

Client receives a 402 invoice, pays on-chain, retries with X-Payment-Proof header. Gateway verifies and proxies.

Prepaid balance

Client deposits NTMPI once. Subsequent requests use X-Client-Id and the gateway deducts per call — no repeated on-chain transactions.

On-chain verification

Queries Neutaro REST API to confirm payment amount, memo, and block confirmations.

Route-level pricing

Default price per request plus per-route overrides. Cheap reads, expensive writes.

Docker & bare-metal deploy

One-command docker compose up or Ubuntu deploy script. SQLite storage, zero external dependencies.

Full API reference, configuration guide, and agent integration examples at gateway.clawpurse.ai

First-class support for agentic AI

ClawPurse was built inside the OpenClaw ecosystem. Autonomous agents get wallet access with human-grade guardrails. Proof-of-work faucets, bounty payouts, 402 API calls, or automated restakes — all from the same local keystore.

🤖

SKILL.md — Agent Integration Guide

Complete documentation for OpenClaw agents, automation scripts, and AI assistants. Covers the wallet API, 402 gateway flow, security best practices, and integration patterns.

View SKILL.md on GitHub →

Skill-ready

The OpenClaw skill wraps the CLI for drop-in agent usage. Pipe receipts straight back to chat.

Priority faucet lanes

Timpi Drip gives OpenClaw-authenticated agents a higher throughput drip for faster onboarding.

PoW over CAPTCHA

Agent-friendly proof-of-work replaces CAPTCHA. ClawPurse ships the PoW solver that powers Timpi Drip.

Autonomous 402 flow

Agents detect 402 responses, parse invoices, pay on-chain, and retry with proof — all programmatically.

Get running in under a minute

# Install the wallet
npm install && npm run build && npm link

# Create a wallet
clawpurse init --password <pass>
clawpurse address
clawpurse balance --password <pass>

# Send tokens
clawpurse send neutaro1... 1.25 --password <pass>

# Staking (v2.0)
clawpurse validators
clawpurse stake neutarovaloper1... 100 --password <pass>
clawpurse delegations

Powered by Timpi & the Neutaro blockchain

ClawPurse is the payment layer for Timpi's independent search network. Timpi combines privacy-first search, an open Data API, and DePIN nodes that reward operators for running the TAP network.

Timpi stack

Search, Data, DePIN

  • Search Engine: censorship-resistant results with no profiling or tracking.
  • Data API: programmatic access to the decentralized index.
  • DePIN nodes: Collectors, Guardians, and GeoCores that earn NTMPI.

Join at timpi.io.

Where to get NTMPI

MEXC Spot Pair

  1. Sign in to MEXC and deposit USDT.
  2. Open the NTMPI/USDT spot market.
  3. Place an order, then withdraw to your Neutaro address.

Gravity Bridge → Osmosis

  1. Bridge stablecoins from Ethereum via Gravity Pulse.
  2. IBC-hop to Osmosis via Keplr or Leap.
  3. Swap for NTMPI and IBC to Neutaro.

Full guide: HOWTOGETTIMPI.md

Version history

Wallet v2.0 — Staking

Full staking CLI and API: stake, unstake, redelegate, delegations, validators. 22-day unbonding support and validator discovery.

Wallet v2.0.1 — Security

Password strength enforcement, input validation, 60+ automated tests, CI/CD pipeline, and 6 new documentation guides.

Gateway v0.2.0

HTTP 402 reverse proxy with invoice routing, prepaid balances, on-chain verification, JWT management API, and Docker deploy.

Timpi Drip Faucet

Agent-friendly faucet with proof-of-work challenge. Higher throughput drip for OpenClaw-authenticated agents.