Best crypto onchain attestations in the United States
Sign Protocol ranks highest in ChainChoice’s published onchain attestations ranking among the providers that list the United States. 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 attestation layer should United States residents use in November 2026?
Sign Protocol ranks highest in ChainChoice’s published onchain attestations ranking among the providers that list the United States. 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 onchain attestations 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 StatesSign Protocol#1 globallyProvider states broad availability Permissionless omnichain attestation protocol with schema-enforced validity caps and reasoned revocation, deployed as upgradeable proxies on nine maintained EVM mainnets.
Revocation and expiry semantics — 10/10Verifiable chain deployments — 9/10Cost per attestation — 8/10#2 for the United StatesEthereum Attestation Service (EAS)#2 globallyProvider states broad availability Permissionless onchain and offchain attestation registry with a schema registry, deployed on 11 EVM mainnets and shipped as an OP Stack predeploy.
Revocation and expiry semantics — 9/10Verifiable chain deployments — 9/10Cost per attestation — 9/10#3 for the United StatesVerax Attestation Registry#3 globallyProvider states broad availability Consensys-maintained shared attestation registry on four EVM mainnets where issuance runs through named, registry-allowlisted Portal contracts.
Issuer permissioning and identity — 9/10Revocation and expiry semantics — 8/10Verifiable chain deployments — 8/10#4 for the United StatesPrivado ID (formerly Polygon ID)#4 globallyProvider states broad availability Self-hosted issuer-node stack for W3C verifiable credentials with zero-knowledge presentation and three selectable revocation-status transports, anchored to CREATE2 State contracts on five listed networks, one of which (Polygon zkEVM) has produced no block since 3 July 2026.
Revocation and expiry semantics — 7/10Issuer permissioning and identity — 7/10#5 for the United StatesCoinbase Verifications#5 globallyProvider states broad availability Coinbase-issued EAS attestations on Base recording verified-account, country-of-residence and Coinbase One status, written by a single permissioned attester contract.
Issuer permissioning and identity — 8/10Cost per attestation — 8/10#6 for the United StatesSolana Attestation Service (SAS)#6 globallyProvider states broad availability Solana Foundation attestation program using per-issuer Credential accounts with explicit authorized-signer sets and PDA-derived attestations.
Issuer permissioning and identity — 8/10Cost per attestation — 7/10#7 for the United StatesHuman Passport (formerly Gitcoin Passport)#7 globallyProvider states broad availability Sybil-resistance scoring service that aggregates verified credentials into a score and optionally mints it as an EAS attestation readable through a Decoder contract on seven mainnets.
Verifiable chain deployments — 8/10Issuer permissioning and identity — 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.
- Control failure: a key or vote changes the rules, freezes or mints.Scored by Revocation and expiry semantics · 32% (Sign Protocol 10/10, Ethereum Attestation Service (EAS) 9/10, Verax Attestation Registry 8/10)Scored by Verifiable chain deployments · 24% (Sign Protocol 9/10, Ethereum Attestation Service (EAS) 9/10, Verax Attestation Registry 8/10)
- Information failure: the number is wrong or bought, or your data leaks.Scored by Issuer permissioning and identity · 26% (Sign Protocol 6/10, Ethereum Attestation Service (EAS) 6/10, Verax Attestation Registry 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 |
|---|---|---|---|---|
| #1Sign Protocol | — | — | — | — |
| #2Ethereum Attestation Service (EAS) | — | — | — | — |
| #3Verax Attestation Registry | — | — | — | — |
| #4Privado ID (formerly Polygon ID) | — | — | — | — |
| #5Coinbase Verifications | — | — | — | — |
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 attestation layer legal in the United States?
Yes. Crypto onchain attestations 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.