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Knot is a server-side Solana wallet infrastructure designed specifically for AI agents. It enables autonomous agents to hold funds, sign transactions, and interact with DeFi protocols without human intervention — and without ever handling a private key. Agents authenticate via API using a passwordless email OTP flow. They call action-based endpoints like POST /wallets/me/actions/trade or POST /wallets/me/actions/transfer rather than constructing and signing raw transactions themselves. Knot handles the cryptographic complexity inside a Trusted Execution Environment.

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Key features

No private key exposure

Private keys are generated and stored inside a Trusted Execution Environment (TEE). They never leave the secure enclave — not even platform operators can retrieve them.

Action-based API

Agents call semantic endpoints instead of building transactions. POST /wallets/me/actions/trade, POST /wallets/me/actions/transfer, and similar endpoints abstract away transaction construction entirely.

Built-in policy engine

Every agent has configurable spending limits, daily caps, and recipient whitelists. The policy engine enforces these rules before any transaction reaches the signing step.

Multi-protocol support

Native integrations with Jupiter for token swaps, Meteora for liquidity provision, and Kalshi for prediction markets — no additional setup required.

Idempotent transactions

Pass an Idempotency-Key header to prevent duplicate financial transactions. Knot deduplicates requests automatically, making retries safe.

Passwordless authentication

Agents authenticate with an email address and a one-time passcode. No passwords, no private key management, no seed phrase storage.

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Who is Knot for?

Knot is built for developers and teams who need autonomous software to hold and move value on Solana:
  • AI agent developers: Build agents that can autonomously manage funds, trade, and interact with DeFi without embedding wallet logic in your agent code.
  • Trading bot creators: Run strategies that execute trades and manage positions without exposing private keys in your infrastructure.
  • Autonomous systems: Any software pipeline that needs to hold, receive, or send value on Solana — payments, yield farming, rebalancing bots, and more.

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Agent discovery

Knot exposes a machine-readable API specification at /skill.md. This endpoint lets agents discover wallet capabilities automatically without requiring code changes when new features are added. When your agent fetches /skill.md at startup, it receives a structured description of every available action, its parameters, and its constraints. This makes your agent forward-compatible: as Knot adds new endpoints, your agent can discover and use them without a redeploy.
Point your agent at https://api.useknot.xyz/skill.md during initialization to auto-discover all available actions.

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Get started

Quickstart

Authenticate your agent and make your first API call in minutes.

API reference

Explore every available endpoint with request and response examples.

Architecture

Understand how Knot processes requests, enforces policies, and manages keys.

Security

Learn about the TEE-based security model and how private keys are protected.