Best AI Agent Wallets for Developers in 2026, Compared

Last updated: September 13, 2026.

An agent wallet has two jobs: sign autonomously inside tight guardrails, and route payments on the rails the agent transacts against. Nine platforms cover that market in 2026, splitting roughly into full-stack bundles (wallet plus payments plus compliance) and signing primitives (wallet only, bring your own payment layer). The ranking below is for developers picking a stack.

For the architectural walkthrough and the custody model, see the AI agents solution page and agent wallet identity, permissions, and compliance. This post is the agent-wallet spoke of a larger set — the Wallet-as-a-Service pillar, plus embedded wallets, Ethereum developer wallets, and stablecoin-payment wallets.

What is an agentic wallet?

An agentic wallet — also called an AI agent wallet — is the core of any agent wallet infrastructure stack: a wallet an autonomous AI agent controls to hold funds and transact on its own, inside limits a developer sets. Unlike a normal embedded wallet (operated by a human clicking "confirm"), an agent wallet is designed to sign without a human in the loop while staying bounded by policy: which contracts it can call, how much it can spend, and over what time window.

Two design choices define an agentic wallet:

• Where the policy lives — enforced on-chain (encoded in a smart account / session key, independently verifiable) or off-chain (checked by the provider's API before signing).
• Which rails it pays on — stablecoin/crypto only, or dual-rail with card networks (Visa/Mastercard) — and whether it speaks agent-payment protocols like x402, AP2, or MCP.

The best agentic wallet for your build depends on those two axes plus your framework stack and whether you need to self-host. The rest of this post compares the platforms on exactly that.

How agent wallets store keys and sign

The question a buyer asks second, after "who provides agent wallets", is "where does the key live and who can use it". Four terms cover almost every answer on the market:

• TEE (trusted execution environment) — a hardware-isolated compute environment, such as AWS Nitro Enclaves or GCP Confidential Space. Memory is encrypted by the CPU, so even an operator with root on the host cannot read key material out of it. Remote attestation produces a cryptographic proof of exactly which code is running inside, which is what makes the isolation checkable rather than promised.
• Envelope encryption — the private key is encrypted by a short-lived data encryption key (DEK), and the DEK is encrypted by a key encryption key (KEK) held in an HSM. Stealing the database gets you neither, because unwrapping the DEK requires the KMS and, when it is bound to attestation, a verified enclave.
• Secret sharing (Shamir / SSS) and MPC — the key is split into shares held in separate security boundaries. Under Shamir the key is reassembled to sign; under threshold MPC the shares sign cooperatively and the whole key is never reconstructed anywhere.
• Session keys / scoped keys — a second, disposable keypair that is authorized to act for the wallet within explicit limits: which contracts, which methods, what spend cap, what expiry. This is what lets an agent sign without holding the wallet's root authority.

The distinction that matters most for agents is where the policy is evaluated. If a spending limit is enforced only in the prompt, the agent can talk its way past it; every platform below enforces at the infrastructure layer instead. If it is enforced on-chain in the smart account, any third party can verify the constraint without trusting the vendor's API.

The second distinction is what happens when it goes wrong. Agent keys leak differently than user keys: through a prompt injection, a poisoned tool result, or a compromised orchestration server, not through a phished user. So key rotation and revocation are not paperwork — they are the incident response path, and they are also the least documented part of most vendors' stacks.

Quick Comparison

Agent key security, compared

This is the table most agent-wallet roundups skip. Blank cells are deliberate: they mean the vendor does not publish the mechanism, not that it is absent. Never fill a cell like this from a marketing page.

On the latency row

The three published numbers measure different things and should not be read as a ranking.

Openfort's figures are end-to-end round trips, measured with the open-source Slate benchmark at 20 iterations per region and reported as medians per region, last updated January 2026. The spread is geographic: 104 ms in Frankfurt, 106 ms in London, 175 ms in N. Virginia, 247 ms in Oregon, 327 ms in Tokyo. Openfort is not fastest in every region, and the benchmarks page shows the comparison set anonymized, so no competitor number can be attributed from it.

Privy's <20 ms and Turnkey's 100–150 ms are vendor-published figures for the enclave signing operation. Neither includes the network path from your agent to the signer, which is the part that dominates the number you will actually observe. For an agent doing one transaction per task, none of these differences are load-bearing; for a trading agent doing thousands, benchmark from your own region before it drives the decision.

On the audit row

Openfort publishes five independent audits with dates and scopes:

Privy names Cure53, Zellic and Doyensec as auditors but does not publish dates alongside them. A named firm without a date does not tell you whether the audited code is the code running today.

These are not a substitute for SOC 2, and SOC 2 is not a substitute for them. A SOC 2 Type II attestation audits a company's operational controls over a period of time. A code audit audits a specific commit of a specific component. Privy holds SOC 2 Type I and Type II; Openfort does not. Openfort publishes dated code audits and the signer source; Privy publishes its Shamir implementation but not the full signer. Buy against whichever question your risk review actually asks — and for the regulated version of that question, see agent wallet compliance and custody controls.

The 9 Agent Wallet Platforms at a Glance

1. Openfort

Openfort (that's us 👋) is open-source wallet infrastructure with native smart accounts. Its backend wallet product is the agent wallet layer: ERC-4337 and EIP-7702 smart accounts with on-chain session keys that encode what the agent key can do — which contracts, which methods, what spend cap, what time window. Policy enforcement is on-chain, which makes it transparent, composable, and independently verifiable.

Unlike every other agent wallet on this list, Openfort's signer (OpenSigner) is open-source and self-hostable. For teams with regulatory or sovereignty requirements, that is the only path to audit the full signing infrastructure and remove vendor lock-in. For teams building agents that interact with other on-chain contracts, on-chain policy enforcement composes naturally — any contract can verify the agent's permissions without trusting an API.

Key security

Backend wallet keys are generated inside a GCP Confidential Space TEE with AMD SEV-SNP memory encryption. The private key is encrypted with AES-256-GCM under a data encryption key unique to that wallet; the DEK is wrapped by an HSM-backed key encryption key in Cloud KMS, using the wallet address as additional authenticated data so a DEK cannot be swapped between wallets. Unwrapping requires a valid attestation token, so a stolen database is inert and a compromised API server cannot decrypt anything. Plaintext key material exists only in TEE memory during an operation and is zeroed afterwards.

Agent authority is scoped in two independent places. A session key is a separate keypair authorized on the smart account through ERC-7715 wallet_grantPermissions, bounded by contract address, function selector, validAfter/validUntil window, and spend cap — enforced on-chain, so any third party can verify it without calling Openfort. A signing policy is evaluated by the API on every operation, matching on value caps, address allowlists and denylists, chain IDs, decoded calldata against an ABI, and Solana mint and program addresses. The engine is fail-closed: once any policy exists, an operation that matches no rule is rejected. policies.evaluate() pre-flights an action and returns the matched policy and rule ID, so an agent can check whether something is permitted before spending gas on it.

Revocation runs down both paths too. POST /v1/sessions/revoke, signed by the account owner, removes the session key's authority on-chain. Disabling or updating a policy takes effect on the agent's next operation. The wallet secret that authorizes backend signing can be rotated from the dashboard. Openfort's guidance is one wallet per agent precisely so each can be audited, rate-limited and revoked independently.

Key Features

• Native ERC-4337 and EIP-7702 smart accounts with session keys
• On-chain policy enforcement (transparent, composable, auditable)
• Fail-closed API policy engine with pre-flight evaluation
• Open-source signer with self-hosting path via OpenSigner
• Gas sponsorship included from the free tier
• Backend wallets in TEE, or self-hosted, for autonomous signing
• MCP server via the Openfort CLI — any MCP-capable agent framework can drive a policy-bounded wallet
• Any OIDC authentication provider + custom JWT
• Multi-chain EVM support with Solana on the wallet and signing layer

Pricing

Included in the Openfort platform. Free tier covers 2,000 operations per month across wallet creation, signing, and gas sponsorship. Paid plans are usage-based — one operation is a wallet creation or a transaction, no per-signature premium.

Openfort Agent Wallet Snapshot

Why developers choose Openfort

Openfort is the only agent wallet with on-chain enforceable policies, an open-source signer, and a self-hosting path. For teams that want architectural control — because of compliance, because of composability, or because they plan to run agents at scale and do not want signer pricing baked into every transaction — Openfort is the default starting point. The payments layer is BYO: if the agent needs onramps or card rails, pair Openfort with a payment provider. Openfort does not hold SOC 2 Type II; if a procurement checklist requires one, Privy publishes Type I and Type II today.

2. Crossmint

Crossmint is the full-stack agent wallet platform. It ships wallets, stablecoin orchestration across 50+ chains, onramps and offramps, KYC/AML/Travel Rule compliance, and — uniquely — card network integration via Lobster Cash. Lobster Cash is an open payment standard built with Visa, Solana, Circle, and Stytch that gives agents virtual credit cards with spending limits alongside USDC wallets with human approval flows. Raw card data and private keys are never exposed to the agent's context.

Crossmint is MiCA CASP licensed across all 27 EU member states and is working toward a PSD2 Payment Institution license in Spain. For regulated products, the compliance surface is the biggest differentiator.

Key security

Crossmint's documented model is dual-key: an owner key plus a TEE-sealed agent key, so the agent's signing authority is a distinct credential from the account's root authority. Crossmint lists passkeys, TEEs, server keys and HSMs as available signer types, and describes transaction rules as enforced on-chain. Crossmint does not publish the encryption scheme protecting keys at rest, signing latency figures, key rotation mechanics, or a documented revocation path.

Key Features

• Dual-key non-custodial architecture (owner key + TEE-sealed agent key)
• Stablecoin rails + Visa/Mastercard agentic payment protocols via Lobster Cash
• Smart contract wallets by default (EVM, Solana, Stellar)
• Native onramps (card, Apple Pay, Google Pay in 160+ countries)
• Native offramps (100+ countries, mobile money, cash agents)
• Built-in KYC/AML/Travel Rule compliance
• MiCA CASP licensed in the EU
• Spending limits, human approval flows, policy-based guardrails

Pricing

1,000 monthly active wallets free — includes wallets, payments, and compliance. Paid tiers are usage-based.

Openfort vs. Crossmint

Why developers choose Crossmint

Crossmint is the pick when the agent has to transact with merchants that do not accept crypto, or when EU compliance is a product requirement. No other platform bundles card networks, onramps, offramps, and a MiCA license with an agent wallet. The trade-off is ecosystem depth: Crossmint runs on proprietary infrastructure, so you cannot self-host the signer or audit the full path end to end.

3. Turnkey

Turnkey provides the strongest key-level security model in the agent wallet market. Keys are generated and signed inside secure enclaves and, per Turnkey's documentation, never reconstructed externally. Turnkey built QuorumOS to attest the code running in the enclaves at every deploy, before posting shares of core secrets — so the isolation claim is independently checkable rather than asserted. Turnkey publishes 100–150ms signing latency, and operates at the cryptographic curve layer (Ed25519, Secp256k1) so chain coverage is wide by default.

Turnkey's agent wallet offering is Enterprise-only, with per-signature pricing as low as $0.0015 at scale. It is the platform for high-frequency autonomous systems, trading desks, and multi-tenant signing architectures.

Key security

Key generation, transaction signing, and policy evaluation all happen inside the enclave — the policy is not a separate service that can be bypassed by reaching the signer directly. Every change to an organization's data must be approved and cryptographically stamped inside an enclave before the policy engine considers it. Agent authority is expressed through policy-scoped P-256 API keys. Turnkey does not publish key rotation mechanics or a documented revocation path in its policy or security overview documentation.

Key Features

• TEE-based key management (secure enclaves), keys never reconstructed externally
• Full remote attestation via QuorumOS and reproducible builds
• Org-level policy engine enforced inside the TEE at signing time
• Curve-layer signing (Ed25519 + Secp256k1) — 50+ chains
• 100–150ms signing latency (vendor-published)
• Key import/export, key quorum, multi-party approvals
• Full auth suite: passkeys, email, SMS (custom), OAuth, Telegram, custom flows

Pricing

Free tier: 25 signatures per month, up to 100 wallets. Pro: $99/month, $0.05/signature, up to 2,000 wallets. Enterprise (required for agent use cases): custom, as low as $0.0015/signature.

Openfort vs. Turnkey

Why developers choose Turnkey

Turnkey is the pick when the signing layer has to be cryptographically verifiable — independently — and when signing frequency pushes per-transaction costs to the center of the pricing conversation. Trading desks, market makers, custodians, and high-volume autonomous systems build on Turnkey for the TEE plus attestation model. BYO stack means onramps, offramps, card rails, and consumer UX are all your responsibility.

4. Coinbase AgentKit

Coinbase AgentKit is Coinbase's open-source SDK for agent wallets on Base. It provisions CDP smart wallets, supports the OpenAI Agents SDK, and ships with no built-in spending limits — you add them through the application layer. AgentKit is free, open-source, and the fastest path to an agent wallet on Base.

Key security

Custody follows the Coinbase Developer Platform smart wallet model; AgentKit itself does not add a key storage or policy layer. With no built-in spending controls, every limit an agent respects has to be implemented and enforced in your own application code — which means a prompt injection that reaches the SDK directly is bounded only by whatever you wrote. Budget for that before shipping an autonomous agent on it.

Key Features

• Open-source SDK
• Coinbase Developer Platform smart wallets on Base
• OpenAI Agents SDK integration
• Free to use (blockchain gas fees apply)
• Composable with CDP onramp/offramp (Coinbase Pay)

Pricing

Free SDK. Blockchain gas fees apply. Coinbase's managed services (onramp, staking) have their own pricing.

Openfort vs. Coinbase AgentKit

Why developers choose Coinbase AgentKit

AgentKit is the pick for Base-native agents that want free, open-source wallet infrastructure with onramp and offramp in the same ecosystem. It is narrow — Base only, no built-in spending controls, no multi-framework support — but if that is the fit, it is the shortest path.

5. Privy

Privy (acquired by Stripe in June 2025) provides Server Wallets as its agent wallet offering. Privy's coupling with Stripe and the Bridge stablecoin rails makes it a natural fit for agents in the Stripe ecosystem.

Key security

Privy shards private keys using Shamir secret sharing across separate security boundaries — its Shamir implementation is published at privy-io/shamir-secret-sharing — and performs sensitive operations inside AWS Nitro Enclaves. Privy's agent wallets page states keys are never stored whole, and publishes a <20ms signature time against 115M+ monthly signatures.

Policy is enforced off-chain at the infrastructure level: transfer limits, contract allowlists, recipient restrictions and time-based windows, scoped per wallet. Privy states it is SOC 2 Type I and Type II compliant, runs a HackerOne bug bounty, and names Cure53, Zellic and Doyensec as third-party auditors — without publishing audit dates. Key rotation and revocation mechanics are not documented in Privy's public security pages.

Key Features

• Server wallets with Shamir sharding inside AWS Nitro Enclaves
• Off-chain policy enforcement with transfer limits, allowlists, time windows
• Session signers with scoped permissions for delegated agents
• SOC 2 Type I and Type II
• EVM, Solana, Bitcoin support
• Agentic CLI for AI-driven wallet operations
• Stripe/Bridge integration for indirect fiat payment paths

Pricing

Included in Privy platform pricing. Free tier up to 499 MAUs; Core $299/month for up to 2,500 MAUs; usage-based above 10K MAUs, 50K signatures, or $1M monthly transaction volume.

Openfort vs. Privy

Why developers choose Privy

Privy is the fast path for consumer agent products in the Stripe ecosystem. The agentic CLI, user-sessioned server wallets, SOC 2 Type II, and Stripe billing integration shorten the ramp — especially through enterprise procurement. Limitations: per-wallet policy scoping means a missed API call leaves a wallet uncovered, the user-session requirement doesn't natively fit fully autonomous sessionless agents, and the policy layer is off-chain, so a counterparty contract cannot verify the agent's constraints without trusting Privy's API.

6. Dynamic

Dynamic (acquired by Fireblocks in 2025) covers embedded wallets for hybrid human-plus-agent products. The architecture is configurable (MPC or smart contract wallet) and spans EVM, Solana, and Cosmos. Dynamic's strongest card is onboarding UX — a polished auth modal that fits products where users and agents share the same wallet surface.

Key security

Key custody is configurable rather than fixed: MPC or a smart contract wallet, chosen per deployment. Dynamic ships session management and JWT-based auth, but agent-specific spending controls are basic compared with the dedicated agent platforms, and Dynamic does not publish a signing latency figure, key rotation mechanics, or a documented agent revocation path.

Key Features

• Embedded wallets: MPC or smart contract architecture
• EVM, Solana, Cosmos chain support
• Polished auth UI with extensive customization
• Multi-wallet aggregation for users bringing external wallets
• Session management and JWT-based auth

Pricing

Included in platform pricing. Free tier available; usage-based pricing for growth and enterprise tiers.

Openfort vs. Dynamic

Why developers choose Dynamic

Dynamic is the pick when the product serves both humans and agents and the onboarding UX has to be shared across both. Agent-specific capabilities are less developed than dedicated agent platforms — Dynamic's strength is the UX layer, not the policy engine. Post-Fireblocks, strategic direction for agent use cases is unclear.

7. Alchemy Agent Wallet (x402)

Alchemy's Agent Wallet is purpose-built for the x402 pay-per-call API protocol on Base. When an agent's compute credits run out, the wallet auto-tops up with USDC. The fit is narrow but clean: API metering and micropayment-for-compute use cases on Base. For how the protocol itself works, see how x402 works.

Key security

Signing is TEE-based. Beyond that, the spending control surface is an auto top-up threshold — there is no policy engine, no scoped session key, and no documented revocation path, so the blast radius of a compromised agent is whatever USDC balance the top-up maintains. Keep that balance small.

Key Features

• TEE-based signing
• x402 protocol integration
• Automated USDC top-up on Base when compute credits run out
• Base-native USDC support

Pricing

Not specified.

Openfort vs. Alchemy x402

Why developers choose Alchemy x402

Alchemy x402 is the pick when the agent's transaction surface is literally pay-per-call APIs on Base. For any broader agent use case, it does not cover enough of the wallet layer on its own.

8. Phantom MCP Server

Phantom's MCP Server lets MCP-compatible AI clients connect to a user's Phantom wallet on Solana. Agents can sign transactions, execute swaps, and transfer tokens within whatever limits the user configures on their Phantom wallet. Free, low-friction, and the fastest way to let an agent transact from a user's existing Solana wallet — but Phantom is a consumer wallet, not a purpose-built agent platform.

Key security

Custody is the consumer Phantom wallet's, on the user's device — there is no platform-provisioned agent key, and therefore no separate credential to scope, rotate or revoke independently of the user's own wallet. The agent operates with whatever the user's wallet permits, and revocation means the user disconnecting it in Phantom. That is a materially different risk model from a per-agent wallet, and it does not fit a product where you are accountable for what the agent spends.

Key Features

• MCP server integration with consumer Phantom wallet
• Sign transactions, execute swaps, transfer tokens
• Solana-native (plus Phantom-supported chains)
• Free (consumer wallet)

Pricing

Free.

Openfort vs. Phantom MCP

Why developers choose Phantom MCP

Phantom MCP is the pick when the agent needs to operate a user's existing Solana wallet, not a platform-provisioned agent wallet. Useful for consumer-facing agents that act on behalf of Phantom users. Not a replacement for a purpose-built agent wallet platform.

9. Thirdweb Engine

Thirdweb Engine is the backend wallet and transaction layer of the broader Thirdweb platform, and it doubles as an agent wallet with the widest AI-framework coverage on this list. Engine manages server-side wallets, scoped session keys, and a transaction queue with automatic gas handling across 700+ EVM chains. It is open-source and free when self-hosted.

Key security

Agent authority is scoped through session keys, and Engine is open-source and self-hostable, so the transaction path can be inspected and run in your own infrastructure. Thirdweb does not publish the key storage model, signing latency, key rotation mechanics, or a documented revocation path for Engine's managed offering — if you self-host, the storage model becomes whatever you deploy it against.

Key Features

• Backend/server wallets with scoped session keys for agents
• Transaction queue with nonce management and gas handling
• Broad AI-framework coverage: OpenAI Agents SDK, LangChain, CrewAI, AutoGen, LlamaIndex, and MCP
• 700+ EVM chains
• Open-source; self-hostable or managed cloud
• Composable with third-party paymasters and bundlers

Pricing

Free when self-hosted (blockchain gas fees apply). Managed Engine plans and premium features are usage-based.

Openfort vs. Thirdweb Engine

Why developers choose Thirdweb Engine

Engine is the pick when the agent has to plug into many AI frameworks and you want a self-hostable transaction backend across a wide EVM footprint. The trade-off is that agent wallets are one feature inside a large platform, so policy depth and agent-specific tooling are less focused than a dedicated primitive. Solana and card rails are out of scope.

How to choose an agent wallet

Detailed Feature Comparison

Other agentic wallets and agent-payment tools to consider

The nine above are the platforms most developers shortlist, but the category is moving fast and a few more names show up in 2026 agent-wallet roundups. They cover adjacent slices — smart-account standards, agent-payment networks, and decentralized key management:

These are worth tracking, but for a production agent stack the nine ranked platforms remain the primary options.

Where to Start

If you are building an agent product from scratch and do not yet know which constraints matter most, Openfort is a defensible default: an open-source self-hostable signer, native smart accounts with on-chain session keys, a fail-closed policy engine with pre-flight evaluation, and a free tier that covers 2,000 operations per month including gas sponsorship. If the agent needs card network rails or EU compliance out of the box, start with Crossmint instead. If signing frequency and attestation drive the pick, start with Turnkey. If your procurement process requires SOC 2 Type II today, Openfort does not have one — Privy publishes both Type I and Type II.

For the longer-form walkthrough of the architecture decisions behind each platform, see the AI agents solution page, or go straight to the agent wallets product page for the key handling and revocation detail.

Related guides

• Best Wallet-as-a-Service (WaaS) providers — the wallet-infrastructure pillar
• Best embedded wallets in 2026 — user-facing embedded wallet SDKs
• Best Ethereum wallets for developers — the EVM developer-wallet view
• Best embedded wallet providers for stablecoin payments — wallets tuned for USDC/USDT payments
• AI agent wallet compliance and custody controls — the regulated view of the same stack
• How x402 works — the HTTP-native payment protocol agents pay with
• Agent permissions, identity and scope — how session key scope is designed
• Session keys, technical deep dive — the mechanics behind the scoping model