WalletConnect's docs cite 300M+ connections across 700+ wallets, which makes it the default way to connect a wallet to an app. Building a wallet, or wallet features inside an app, needs more than that: smart accounts, transaction simulation for previews, and key management. This list covers one strong tool for each job.
Quick answer
WalletConnect is the first tool to add: it connects your app or wallet to 700+ wallets, free for 500 MAUs on Reown Starter. Add Safe for multisig smart accounts and Tenderly for transaction simulation.
- 01WalletConnect: best for wallet connection
- 02Safe{Wallet}: best for multisig accounts
- 03Tenderly: best for tx simulation
- 04Privy: Best embedded wallet SDK
- 05Dynamic: best for mixed wallet users
The 7 best wallet developer tools
#1W
Best for wallet connection
WalletConnect's docs cite 300M+ connections across 700+ wallets and 80,000+ apps. Reown's Starter plan is free for 500 MAUs; Pro is $890 a year.
- Chains
- EVM chains, Solana, Bitcoin, Cosmos, Polkadot and more
- Platforms
- SDK, Web, iOS, Android
- Launched
- 2018
- Token
- WCT
- Pricing
- Starter $0 (500 MAUs); Pro $890 per year
Pros
- Chain agnostic: EVM, Solana, Bitcoin, Cosmos, Polkadot
- Reown Starter plan is $0 with 500 MAUs
- Supported by 700+ wallets
Cons
- Reown Pro plan costs $890 per year
- Two brands (WalletConnect and Reown) can confuse builders
- Network is permissioned, per its own docs
Skip it if you do not want two brand names in your stack: the SDKs now ship under Reown.
#2S
Best for multisig accounts
Safe is a smart-account multisig for EVM chains with 57M+ wallets deployed, per its homepage. Its contracts are public under LGPL-3.0 and audited by Certora, Ackee and others.
- Chains
- EVM networks
- Platforms
- Web, iOS
- Custody
- Multisig
- Pricing
- No AUM fees
- Security audits
- Certora and Ackee (v1.5.0); Ackee (v1.4.x); G0 Group, Certora and Nethermind (v1.3.0)
Pros
- No AUM fees, per the Safe homepage
- Contract audits listed per version, including Certora formal verification for v1.5.0
- Spending limits, roles and a transaction builder for batching
Cons
- Safe{Mobile} iOS app rated 2.3 from 12 US App Store ratings
- Safe{Mobile} app is iPhone only; no iPad or Mac build
- EVM only; no Bitcoin or Solana accounts
Skip it if you need Bitcoin or Solana accounts: Safe is EVM only.
Tenderly simulates, debugs and monitors transactions on 100+ networks, useful for showing users a preview before they sign. It has a free plan.
- Chains
- EVM networks
- Platforms
- Web, API, SDK
- Free plan
- Free plan available; excludes Node RPC
- Pricing
- Node RPC on paid plans, metered in Tenderly Units (1 to 400 TU per request)
- Chains
- 100+ networks
Pros
- Covers 100+ networks per its docs
- Simulation, debugger, alerts and Node RPC in one dashboard
- Node RPC read calls cost 1 TU each
Cons
- Free plan does not include Node RPC access
- Node RPC capacity is set through the sales team
- Simulation calls over RPC cost 400 TU each
Skip it if you want RPC on the free plan: Node RPC is paid only.
Privy adds login and embedded wallets, free for 500 MAUs a month. Stripe announced its acquisition on June 11, 2025.
- Chains
- EVM and Solana
- Platforms
- Web, iOS, Android, API
- Pricing
- Core $299/month (500 to 2,499 MAU); Scale $499/month (2,500 to 9,999 MAU)
- Free plan
- Up to 500 MAU, 50K signatures and $1M volume per month
- Company
- Stripe (acquisition announced June 11, 2025)
Pros
- Free plan covers up to 500 MAU, 50K signatures and $1M transaction volume per month
- Wallet connectors for EVM and Solana
- Login by email, SMS, social accounts and passkeys
Cons
- Paid plans start at $299 per month for up to 2,500 MAU
- Webhooks, SSO and dedicated support need an Enterprise contract
- Owned by Stripe since 2025, so the roadmap depends on a payments company
Skip it if you need webhooks or SSO without an Enterprise contract.
#5D
Best for mixed wallet users
Dynamic supports embedded wallets and 800+ external wallets in one SDK, free up to 1,000 MAUs.
- Chains
- Multichain
- Platforms
- Web, SDK
- Free plan
- Up to 1,000 monthly active users
- Pricing
- $249/mo for 1,000 to 5,000 MAUs; $0.05 per MAU above 5,000; Enterprise custom
- Company
- Fireblocks (acquired October 2025)
Pros
- Free up to 1,000 monthly active users
- Connects 800+ external wallets alongside embedded wallets
- Owned by Fireblocks since October 2025
Cons
- Paid tier jumps to $249/mo above 1,000 MAUs
- Each MAU above 5,000 adds $0.05
Skip it if you pass 1,000 MAUs on a small budget: the next tier is $249 a month.
Alchemy's RPC and data APIs cover 100+ blockchains, with 30M free compute units a month for balance and transfer lookups.
- Chains
- Ethereum, EVM networks and Solana
- Platforms
- Web, API
- Pricing
- Pay as You Go: $0.525 per 1M compute units
- Free plan
- 30M compute units per month, 25 requests per second, 5 apps
- Chains
- 100+ blockchains
Pros
- Free tier includes 30M compute units per month at 25 requests per second
- Pay as You Go starts at 300 requests per second with 30 apps
- Covers 100+ blockchains, with all mainnets and testnets on the free plan
Cons
- Usage is billed in compute units and each method has a different cost, so bills are harder to predict
- Free tier is limited to 5 apps and 5 webhooks
- Signed SLAs are only on the Enterprise plan
Skip it if you want login or embedded wallets: Alchemy's RPC and data APIs do not replace a wallet SDK.
Dfns offers wallet and key management with MPC, HSM and TEE options across 100+ blockchains, with SOC 2 and ISO 27001 reports.
- Platforms
- API, SDK, Web
- Pricing
- Starter $800/yr, Basic $8,000/yr, Pro $35,000/yr, Enterprise custom; no AUM or transaction fees
- Free plan
- 30-day free trial with full sandbox access on testnets, no credit card
- Chains
- 100+ blockchains
- Security audits
- SOC 2 Type I and II, ISO 27001/27017/27018 (KPMG); quarterly audits and pentests by Halborn, Kudelski, Quarkslab and others
Pros
- No AUM fees and no transaction fees on any plan
- 30-day free sandbox trial on testnets, no credit card
- SOC 2 Type I and II plus ISO 27001, 27017 and 27018, certified by KPMG
Cons
- Starter plan covers 1 blockchain, 10 wallets and 100 signatures per month
- Pro plan costs $35,000 per year; Enterprise pricing is not published
- iOS and Android interfaces are listed as coming soon
Skip it if you are an indie developer: plans start at $800 a year.
Wallet Developer Tools compared
Select a name to jump to its review.
| Name | Best for | Pricing | Free plan | Chains |
|---|
| WalletConnect | Linking wallets and apps | Starter $0 (500 MAUs); Pro $890 per year | Starter: 1 project, 500 MAUs, 2.5M RPC calls | EVM chains, Solana, Bitcoin, Cosmos, Polkadot and more |
|---|
| Safe{Wallet} | Shared treasury accounts | No AUM fees | Not verified | EVM networks |
|---|
| Tenderly | Previews and debugging | Node RPC on paid plans, metered in Tenderly Units (1 to 400 TU per request) | Free plan available; excludes Node RPC | EVM networks |
|---|
| Privy | Wallets inside consumer apps | Core $299/month (500 to 2,499 MAU); Scale $499/month (2,500 to 9,999 MAU) | Up to 500 MAU, 50K signatures and $1M volume per month | EVM and Solana |
|---|
| Dynamic | Embedded plus external | $249/mo for 1,000 to 5,000 MAUs; $0.05 per MAU above 5,000; Enterprise custom | Up to 1,000 monthly active users | Multichain |
|---|
| Alchemy | Balances and transfers | Pay as You Go: $0.525 per 1M compute units | 30M compute units per month, 25 requests per second, 5 apps | Ethereum, EVM networks and Solana |
|---|
| Dfns | Business wallets with MPC | Starter $800/yr, Basic $8,000/yr, Pro $35,000/yr, Enterprise custom; no AUM or transaction fees | 30-day free trial with full sandbox access on testnets, no credit card | 100+ blockchains |
|---|
“Not verified” means we could not confirm the value on the project’s own pages.
How we rank wallet developer tools
- 01Job: connection, smart accounts, simulation, embedded wallets, data or keys.
- 02Free tier: published free allowance.
- 03Scale: adoption figures from the tool's own pages.
- 04Security: open-source contracts, audits and compliance reports.
- 05Chains: chains the tool lists.
No project paid to be listed or ranked. Full rules: methodology.
How to choose
Connect first
Most users already have a wallet. WalletConnect lets them connect without leaving your app.
Show a preview before signing
Simulating a transaction with Tenderly lets you show users the balance changes before they sign, which cuts phishing losses.
Use a multisig for team funds
Safe requires a set number of owners to sign, so one stolen key cannot move a treasury.
Match key management to your users
Consumer apps fit Privy or Dynamic. Businesses that hold client funds fit Dfns.
Who should skip all of these
- End users picking a wallet app: see our best crypto wallets list.
- Contract developers looking for a compiler or test framework: see our smart contract tools list.
Bottom line
Add WalletConnect for connection, Tenderly for previews and Safe for shared funds; these three cover most wallet flows.
Pick Privy, Dynamic or Dfns for keys depending on whether your users are consumers or businesses.
Educational content, not financial advice. Crypto assets are volatile; do your own research.
FAQ
What does a wallet developer need first?
±
A connection layer such as WalletConnect, so your app works with the wallets users already have.
How do wallets show transaction previews?
±
They simulate the transaction before signing. Tenderly offers simulation on 100+ networks.
Is Safe free to use?
±
Safe's homepage lists no AUM fees. You pay network gas to deploy and use the account.
What is the difference between WalletConnect and Reown?
±
WalletConnect Inc. renamed itself Reown in September 2024. Reown sells the SDKs; WalletConnect is the network.
What changed in this list
2026-09-26First version: 7 tools covering connection, smart accounts, simulation and keys.