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tron-x402-payment

Pay for x402-enabled Agent endpoints using TRC20 tokens (USDT/USDD) on TRON

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Pay for x402-enabled Agent endpoints using TRC20 tokens (USDT/USDD) on TRON

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Install for OpenClaw

Quick setup

Download the package from Yavira.
Extract the archive and review SKILL.md first.
Import or place the package into your OpenClaw setup.

Requirements

Target platform: OpenClaw
Install method: Manual import
Extraction: Extract archive
Prerequisites: OpenClaw
Primary doc: SKILL.md

Package facts

Download mode: Yavira redirect
Package format: ZIP package
Source platform: Tencent SkillHub
What's included: package.json, SKILL.md, tsconfig.json, src/x402_tron_invoke.ts, dist/x402_tron_invoke.js, dist/package.json

Validation

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Review SKILL.md after the package is downloaded.
Confirm the extracted package contains the expected setup assets.

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Trust & source

Release facts

Source: Tencent SkillHub
Verification: Indexed source record
Version: 1.0.0

Provenance

Publisher: wzc1206
Source page: View original listing
Canonical URL: Open canonical page

Documentation

ClawHub primary doc Primary doc: SKILL.md 19 sections Open source page

x402 Payment Protocol for TRON Agents

Invoke x402-enabled AI agent endpoints with automatic TRC20 token payments on TRON. Currently recommended tokens: USDT, USDD.

Quick Start

The tool x402_tron_invoke is implemented by the compiled script dist/x402_tron_invoke.js. The script is pre-built and ready to run. You can execute it directly from the command line: # v2 Invoke node dist/x402_tron_invoke.js --url https://api.example.com --entrypoint chat --input '{"prompt": "hi"}' # Direct/Discovery node dist/x402_tron_invoke.js --url https://api.example.com/.well-known/agent.json

How It Works

The x402_tron_invoke tool: Constructs the endpoint URL: If entrypoint is provided: {url}/entrypoints/{entrypoint}/invoke (v2) Otherwise: Uses {url} as-is (v1 / Discovery) Makes a request (POST for v2, GET default for v1) If 402 Payment Required is returned: Parses payment requirements Checks wallet balance and allowance Performs an infinite approval if allowance is insufficient Signs the payment permit (EIP-712 / TRON Typed Data) Retries the request with X-PAYMENT header Returns the response

Prerequisites

Wallet: A TRON private key must be available. The skill automatically looks for it in: TRON_PRIVATE_KEY environment variable. ~/.mcporter/mcporter.json (AIBank standard). x402-config.json in the current/home directory. Tokens: Wallet needs USDT/USDD and some TRX for gas. TronGrid API Key: Required for Mainnet to avoid rate limits (TRON_GRID_API_KEY).

x402_tron_invoke

Invokes an HTTP endpoint with automatic payment handling. Modes: v2 Agent Invoke (Recommended): Provide url (Base URL) + entrypoint. Constructs: {url}/entrypoints/{entrypoint}/invoke Wraps input: {"input": <input>} Method: POST v1 / Direct / Discovery: Provide url (Full URL) without entrypoint. Uses the URL as-is. Method: GET (default) or specified via method. Agent Advice: Use this mode for discovery. If url returns 404, try appending /.well-known/agent.json or /entrypoints. Status Check: Provide --check or --status. Verifies if TRON_PRIVATE_KEY is correctly configured and outputs the associated wallet address. Checks if TRON_GRID_API_KEY is present (Required for Mainnet). Agent Advice: ALWAYS use this instead of env or echo $TRON_PRIVATE_KEY. ParameterTypeRequiredDescriptionurlstringYes*Base URL (v2) or Full URL (v1/Discovery). *Not required for --check.entrypointstringNoEntrypoint name. Required for v2 Invoke.inputobjectNoInput data.methodstringNoHTTP method. Default: POST (v2), GET (Direct).networkstringNomainnet, nile, shasta (Default: nile).checkbooleanNoVerify wallet configuration and output address.

Example: Chat with Agent (v2 Invoke)

node dist/x402_tron_invoke.js --url https://api.example.com --entrypoint chat --input '{"prompt": "Tell me a joke"}' (Sends POST https://api.example.com/entrypoints/chat/invoke)

Example: Agent Discovery (Direct)

Manifest: Fetch agent metadata. node dist/x402_tron_invoke.js --url https://api.example.com/.well-known/agent.json List Entrypoints: List available functions. node dist/x402_tron_invoke.js --url https://api.example.com/entrypoints Each entrypoint typically returns: Path: /entrypoints/{name}/invoke Pricing: Cost in tokens (e.g., 1000 units) Network: Usually nile or mainnet Input Schema: Expected JSON format for the input parameter

Example: Raw URL (Legacy)

node dist/x402_tron_invoke.js --url https://api.example.com/chat --method POST --input '{"prompt": "Tell me a joke"}'

Cost Reference (USDT/USDD)

TokenNetworkContract AddressDecimalsUSDTMainnetTR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6t6USDTNileTXYZopYRdj2D9XRtbG411XZZ3kM5VkAeBf6USDTShastaTG3XXyExBkPp9nzdajDZsozEu4BkaSJozs6USDDMainnetTXDk8mbtRbXeYuMNS83CfKPaYYT8XWv9Hz18USDDNileTGjgvdTWWrybVLaVeFqSyVqJQWjxqRYbaK18 Amount (raw)Value (USDT, 6 dec)Typical Use1000$0.001Single API call5000$0.005Multiple results10000$0.01Premium request1000000$1.00Large batch

Understanding 402 Responses

When payment is required, agents return: { "error": "X-PAYMENT header is required", "accepts": [{ "scheme": "exact", "network": "nile", "maxAmountRequired": "1000", "payTo": "T...", "asset": "T..." }], "x402Version": 1 } The tool handles this automatically.

Supported Tokens

This tool supports TRC20 tokens compatible with the x402 protocol. Recommended: USDT (Tether) USDD (Decentralized USD)

Security Rules for Agents

No Private Key Output: The Agent MUST NOT print, echo, or output the TRON_PRIVATE_KEY or any other signing secret to the dialogue context. Internal Loading Only: The Agent should rely on the skill or underlying scripts to load the key internally. No Export Commands: The Agent MUST NOT execute shell commands that contain the private key as a literal string. Sanitized Logs: Ensure that logs or error messages do not leak the key. Silent Environment Checks: If you need to verify if an environment variable is set, use a "Silent Check". Correct: [[ -n $TRON_PRIVATE_KEY ]] && echo "Configured" || echo "Missing" Forbidden: echo $TRON_PRIVATE_KEY, env, printenv, set, export. Disabled Commands List: Do NOT use the following commands in any environment containing sensitive keys: env / printenv echo $VARIABLE_NAME set / export (without arguments) Use the Check Tool: To safely verify wallet status, use node dist/x402_tron_invoke.js --check.

❌ Negative Example (CRITICAL FAILURE)

"I will check your private key now: echo $TRON_PRIVATE_KEY" -> STOP! This leaks the secret to the logs and UI.

✅ Positive Example

"I will verify the wallet configuration: node dist/x402_tron_invoke.js --check" -> SAFE. Only the public address is shown.

"Private key not found"

Ensure the TRON_PRIVATE_KEY environment variable is set or a valid x402-config.json exists in the expected locations.

"Insufficient Allowance"

The tool will attempt to broadcast an infinite approve transaction. This requires TRX for gas. Ensure your wallet has TRX.

"Transaction Failed"

Check if you have enough Token balance (USDT/USDD) and TRX for gas.

Binary and Image Handling

If the endpoint returns an image (Content-Type: image/*) or binary data (application/octet-stream): The data is automatically saved to a temporary file (e.g., /tmp/x402_image_...). The tool returns a JSON object with: file_path: Path to the temporary file. content_type: The MIME type of the content. bytes: File size in bytes. Important: The Agent is responsible for deleting the temporary file after it has been used.

Network Reference

NetworkChain IDCAIP-2USDT ContractUSDD ContractTRON Mainnet0x2b6653dceip155:728126428, tron:mainnetTR7NHqjeKQxGTCi8q8ZY4pL8otSzgjLj6tTXDk8mbtRbXeYuMNS83CfKPaYYT8XWv9HzTRON Nile0xcd8690dceip155:3448148188, tron:nileTXYZopYRdj2D9XRtbG411XZZ3kM5VkAeBfTGjgvdTWWrybVLaVeFqSyVqJQWjxqRYbaKTRON Shasta0x94a9059eeip155:2494104990, tron:shastaTG3XXyExBkPp9nzdajDZsozEu4BkaSJozs-

Category context

Code helpers, APIs, CLIs, browser automation, testing, and developer operations.

Source: Tencent SkillHub

Largest current source with strong distribution and engagement signals.

Package contents

Included in package

3 Config2 Scripts1 Docs

SKILL.md Primary doc
dist/x402_tron_invoke.js Scripts
src/x402_tron_invoke.ts Scripts
dist/package.json Config
package.json Config
tsconfig.json Config