Agentkit

Agentkit is how an AI agent gets a wallet (KMS-custodied, policy-enforced, no private key in your process) and hands (the ability to pay for real work on the internet — browse, search, scrape, call paid APIs — settled gaslessly by the 0xGasless facilitator).

There are two packages, and they are layers of the same stack — not competitors. Pick by how your agent is built:

	@0xgasless/agentkit	@0xgasless/agent
What it is	LangChain / LangGraph tools an LLM can call	The direct TypeScript client underneath
Who decides	The model (“find a tool that reads web pages, run it”)	Your code (client.x402.payFetch(url))
Use when	You’re building an LLM agent loop	You’re writing the logic yourself — bots, services, backends
Includes	Everything below, wrapped as ~37 actions	Agents, x402 signing/paying, payFetch, identity, policy
Docs	This section	Agent SDK section

Both share the same agent wallet, the same server-enforced spending policy, and the same Tool Gateway. Agentkit depends on @0xgasless/agent — using one never locks you out of the other.

npm install @0xgasless/agentkit   # LLM tools (includes the client)
npm install @0xgasless/agent      # just the client, no LangChain

Deprecated names

@0xgasless/agent-sdk and @0xgasless/smart-account are deprecated on npm. They are replaced by @0xgasless/agent and @0xgasless/smart-account-sdk respectively — old guides mentioning them are out of date.

What an agent can do

Pay — send USDC/XSGD and pay any x402 API on the internet, gaslessly, under spend caps. The agent needs zero native gas token; the facilitator pays the gas.

Do — search and run tools from the Tool Gateway (backed by Apify’s 57k-actor marketplace): browse the web, run search, scrape pages — paid per call from the agent’s wallet.

Be trusted — mint an ERC-8004 on-chain identity, check another agent’s reputation before paying it, and leave feedback after.

DeFi — balances, transfers, swaps and bridges through gasless ERC-4337 smart accounts (self-custody mode).

Two modes

Mode	Wallet	Use when
Platform (recommended)	KMS-custodied by 0xGasless; policy-enforced; no key in your code	You want payments, tools, identity, spend limits, audit
Self-custody	A local private key via an ERC-4337 smart account	You hold the key and want classic gasless DeFi actions

Where to go next

• Getting Started — a paying agent in 5 minutes.
• Payments actions — x402_pay, pay_api, spend status.
• Tool actions — search_tools, call_tool, browse_web.
• Trust actions — identity, reputation, feedback.
• Agent SDK — the @0xgasless/agent client reference.