Best crypto relayers in the United States
Coinbase CDP Server Wallets (API-key wallets) ranks highest in ChainChoice’s published relayers ranking among the providers that list the United States — A backend API. Fragmented regulation: SEC for securities-like tokens, CFTC for commodities, state-level money-transmitter licensing on top.
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Reviewed means every product ranked on this page was read against its sources on or after that date; every ranked category is re-read at least every 45 days. Models research, extract and parse. A deterministic engine ranks. Every quote passes an adversarial refute pass.
Accountable for this review: Mathias Siemonsmeier, Founder.
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Which crypto relayer service should United States residents use in November 2026?
Coinbase CDP Server Wallets (API-key wallets) ranks highest in ChainChoice’s published relayers ranking among the providers that list the United States — A backend API. The order is the published ranking itself; providers whose terms exclude the United States are removed. Check authorisation with SEC/CFTC before depositing.
- United States residents holding capital in USD
- Users who need SEC/CFTC-aligned compliance and audit-grade reporting
- Buy-and-hold profiles benefiting from the United States' tax treatment
- Sophisticated retail and family-office treasurers
- Derivatives / perpetuals traders (use a regulated futures venue instead)
- Privacy-focused users avoiding KYC (these are licensed venues)
- Day-traders chasing the lowest spreads regardless of regulator posture
- Anyone needing a service SEC/CFTC does not currently authorise
General guidance for the United States: the ranking engine does not compute these notes and they do not change the order below. If none fits you, answer the Find My Best questions for a result for your profile.
7 relayers listed for the United States
In ChainChoice’s published ranking order, from this category’s 7 providers: those whose terms exclude the United States are removed; those silent on it come last. Each chip names the basis: a dated check, a region listing, or the provider's own claim.
#1 for the United StatesCoinbase CDP Server Wallets (API-key wallets)#1 globallyProvider states broad availability A backend API that creates EOAs whose private keys are generated inside Coinbase's AWS Nitro Enclave TEE, then signs and broadcasts transactions from them on seven EVM mainnets and Solana, with import and export of the raw private key both exposed as REST endpoints.
What a stolen API credential can do before anyone notices — 10/10What the relayer is authorised to do, and whether you can keep the address — 9/10Where the gas float sits and how you get it back — 8/10#2 for the United StatesPrivy server wallets#2 globallyProvider states broad availability A REST/SDK service that generates or imports secp256k1 and Ed25519 keys into a TEE, holds them under an app-held P-256 authorization key (optionally an m-of-n key quorum), and signs and broadcasts transactions from those addresses on request from the buyer's backend — with gas paid by default from the wallet's own native balance, or optionally sponsored from a prepaid app-level gas-credits balance, or collected on-chain from the wallet's stablecoin balance by an ERC-20 paymaster in 'User pays' mode.
What the relayer is authorised to do, and whether you can keep the address — 9/10What a stolen API credential can do before anyone notices — 9/10#3 for the United StatesOpenZeppelin Relayer#3 globallyProvider states broad availability An AGPL-licensed Rust service a backend team runs itself to submit transactions from its own EOA on EVM, Solana and Stellar networks, where the signing key stays in the buyer's own keystore file, HashiCorp Vault, AWS KMS, Google Cloud KMS, Turnkey or Coinbase CDP account rather than in a vendor's vault.
What the relayer is authorised to do, and whether you can keep the address — 10/10Where the gas float sits and how you get it back — 9/10#4 for the United StatesSequence Transactions API (Relayer)#4 globallyProvider states broad availability A hosted relayer that accepts a signed Sequence smart-contract-wallet transaction bundle from a backend, fronts the network gas either from a Builder-funded sponsorship balance or from an ERC-20 fee transaction included inside the bundle, and submits it on chain-specific relayer hosts (52 published in the vendor's OpenAPI servers block, of which 21 mainnet hosts answered live on 11 August 2026).
What the relayer is authorised to do, and whether you can keep the address — 9/10Where the gas float sits and how you get it back — 7/10#5 for the United StatesCircle Gas Station#5 globallyProvider states broad availability Circle fronts network fees for transactions sent from Circle-hosted Programmable Wallets — through a Circle-owned, upgradeable ERC-4337 paymaster proxy on EntryPoint v0.6 on its supported EVM mainnets and fee-payer accounts on Solana and Aptos — governed by console-configured gas-spend policies and billed back to the developer's card after the fact.
Where the gas float sits and how you get it back — 8/10Exactly-once execution and stuck-queue recovery — 7/10#6 for the United StatesOpenfort backend wallets#6 globallyProvider states broad availability A custodial server-side signer: Openfort generates and holds an EVM or Solana private key inside a GCP Confidential Space TEE, exposes sign/import/export over a REST API gated by a fail-closed rule-based policy engine, and can also submit transactions for that wallet via EIP-7702 delegation — a send the policy engine sees only as signEvmHash, so its transaction rules do not run — with gas optionally sponsored from a prepaid project credit balance.
What the relayer is authorised to do, and whether you can keep the address — 9/10Where the gas float sits and how you get it back — 7/10#7 for the United StatesGelato Relay#7 globallyProvider states broad availability A hosted meta-transaction relay, as last documented on 2026-08-11: the buyer's backend posts a target address and calldata to Gelato's JSON-RPC API with an API key, and Gelato's executors front the gas and submit the transaction, billing a prefunded USDC "Gas Tank" balance held on Polygon.
What the relayer is authorised to do, and whether you can keep the address — 7/10What a stolen API credential can do before anyone notices — 6/10
Commission: None of these providers pays ChainChoice anything for these links. Disclosure
No referral fee in your country: this link opens the provider’s own site.
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
- Liveness failure: the operator stops, censors you or loses data.Scored by Exactly-once execution and stuck-queue recovery · 26% (Coinbase CDP Server Wallets (API-key wallets) 7/10, Privy server wallets 7/10, OpenZeppelin Relayer 6/10)
- Custody failure: whoever holds the assets loses or withholds them.Scored by What the relayer is authorised to do, and whether you can keep the address · 32% (Coinbase CDP Server Wallets (API-key wallets) 9/10, Privy server wallets 9/10, OpenZeppelin Relayer 10/10)Scored by What a stolen API credential can do before anyone notices · 22% (Coinbase CDP Server Wallets (API-key wallets) 10/10, Privy server wallets 9/10, OpenZeppelin Relayer 3/10)Scored by Where the gas float sits and how you get it back · 20% (Coinbase CDP Server Wallets (API-key wallets) 8/10, Privy server wallets 7/10, OpenZeppelin Relayer 9/10)
Each cell is verified against the provider's filings or the SEC/CFTC register; a gap shows "—", never an estimate.
| Provider | Taker fee in the United States | KYC tier | USD rails | SEC/CFTC license |
|---|---|---|---|---|
| #1Coinbase CDP Server Wallets (API-key wallets) | — | — | — | — |
| #2Privy server wallets | — | — | — | — |
| #3OpenZeppelin Relayer | — | — | — | — |
| #4Sequence Transactions API (Relayer) | — | — | — | — |
| #5Circle Gas Station | — | — | — | — |
Source: ChainChoice provider catalog cross-referenced with the SEC/CFTC register; each fee as of its entry's latest verification (accuracy methodology).
Is using a crypto relayer service legal in the United States?
Yes. Crypto relayers are regulated in the United States by Securities and Exchange Commission (SEC) + Commodity Futures Trading Commission (CFTC) + state regulators. Always verify a platform's licensing status with SEC/CFTC before transacting.
How is crypto taxed in the United States?
Short-term gains (≤1y) taxed at ordinary income rates (10-37%). Long-term gains (>1y) taxed at 0%, 15%, or 20% depending on income. IRS Form 1099-DA reporting from 2026. Editorial summary, not tax advice: consult a qualified tax advisor in the United States before filing.
What payment methods work for buying crypto in the United States?
The most common rails for retail onramps in the United States are: ACH, Wire, Debit Card, Apple Pay. Most regulated platforms support at least the first of these. Card payments may incur 2-4% fees vs. ~0.5% for bank transfers.
Are international platforms (Coinbase, Kraken, Binance) available in the United States?
Availability varies by platform and product. The United States has its own licensing regime under SEC/CFTC, and not every global platform is registered. The shortlist above removes platforms whose terms exclude the United States; the chip on each row says whether availability is verified, listed or unstated.