Verify Any Credential with Cross-Chain Proof
Instantly verify any credential, resolve identity across three ledgers, and return signed proof without reissuing a thing.
Get API KeyBridging identity across the world’s major ledgers
Simpler identity setup
for scaling trust
Substrate-native DID resolution with on-chain attestation anchoring, verifiable by any parachain or solo chain in the ecosystem.
~0s
Attestation finality
EIP-712 attestations on Base, Arbitrum, and Optimism, with a paymaster covering gas so verification costs your users nothing.
$0
Gas paid by users
Permissioned Indy and Fabric credentials made verifiable on public chains without exposing the underlying registry.
0
Private fields leave the network
Master Every Ledger
with One endpoint
Everything you need to issue, resolve, and verify identity across every chain in one simple API.
Universal DID Resolution
Resolve any DID method across all three ledgers through a single call, no chain-specific SDK required.
Signed Attestations
Every verification returns a cryptographically signed attestation any chain can check independently.
Selective Disclosure
Prove a fact without revealing the record behind it, so permissioned data never leaves its network.
Gasless Verification
A built-in paymaster covers L2 gas, so your users verify credentials without holding a token.
Bridge identity
in 4 simple steps
Register Your Issuer
Point Attestra at the chain your credentials already live on, and we index its registry in one call — no migration, no reissuing.
Take full control of your identity layer with portable proof
Ship cross-chain identity faster with one oracle designed to resolve DIDs, verify credentials, and return proof every ledger trusts.
Verify across any ledger
Check a credential issued on one chain from any of the other two, without writing a custom verifier.
Fast and seamless routing
The oracle picks whichever ledger holds the fact and returns signed proof in a single call.
Built on open standards
W3C DIDs and verifiable credentials, so nothing you issue is locked to Attestra's format.
Maximum integration efficiency
Replace three chain-specific SDKs and three sets of keys with one endpoint and one API key.
Private by default
Prove a fact without exposing the record behind it, so permissioned data never leaves its network.
Simple and developer friendly
Clear docs, typed SDKs, and a sandbox that returns real attestations before you write a line of production code.
Zero cost to your users
A built-in paymaster covers L2 gas, so nobody needs to hold a token to verify a credential.
Independently verifiable
Every attestation is signed, so any chain can check it without trusting or calling Attestra.
Resolving identity faster, verifying it everywhere, and proving facts without exposing data. Let's connect the ledgers together.
Ledgers bridged
eIDChain, Ethereum L2, and Hyperledger through a single endpoint.
Median resolution
Reading a DID from whichever ledger holds it, end to end.
Gas paid by users
The paymaster covers L2 fees, so nobody holds a token.
Trusted by teams who move identity across chains
See how teams are cutting integrations, verifying credentials faster, and shipping cross-chain identity with Attestra.
“We were maintaining three separate verifiers and three sets of keys. Attestra collapsed all of it into one endpoint, and we deleted about four hundred lines of chain-specific code.”
Marcus Reyes
Protocol Engineer
“Our credentials live in Hyperledger and our app is on Base. Before this, that gap meant reissuing everything. Now the proof just travels.”
Priya Nandakumar
Head of Identity
“Selective disclosure was the part our compliance team cared about. We prove a customer is verified without a single private field ever leaving our network.”
Johan Aakerlund
Compliance Lead
“Gasless verification removed the last thing standing between our users and onboarding. Nobody has to go buy a token first.”
Sofia Okonkwo
Product Lead
“The attestation is signed, so we can check it ourselves without calling Attestra. That is what got it past our security review.”
Daniel Cartier
Staff Engineer
“We were maintaining three separate verifiers and three sets of keys. Attestra collapsed all of it into one endpoint, and we deleted about four hundred lines of chain-specific code.”
Marcus Reyes
Protocol Engineer
“Our credentials live in Hyperledger and our app is on Base. Before this, that gap meant reissuing everything. Now the proof just travels.”
Priya Nandakumar
Head of Identity
“Selective disclosure was the part our compliance team cared about. We prove a customer is verified without a single private field ever leaving our network.”
Johan Aakerlund
Compliance Lead
“Gasless verification removed the last thing standing between our users and onboarding. Nobody has to go buy a token first.”
Sofia Okonkwo
Product Lead
“The attestation is signed, so we can check it ourselves without calling Attestra. That is what got it past our security review.”
Daniel Cartier
Staff Engineer
“We were maintaining three separate verifiers and three sets of keys. Attestra collapsed all of it into one endpoint, and we deleted about four hundred lines of chain-specific code.”
Marcus Reyes
Protocol Engineer
“Our credentials live in Hyperledger and our app is on Base. Before this, that gap meant reissuing everything. Now the proof just travels.”
Priya Nandakumar
Head of Identity
“Selective disclosure was the part our compliance team cared about. We prove a customer is verified without a single private field ever leaving our network.”
Johan Aakerlund
Compliance Lead
“Gasless verification removed the last thing standing between our users and onboarding. Nobody has to go buy a token first.”
Sofia Okonkwo
Product Lead
“The attestation is signed, so we can check it ourselves without calling Attestra. That is what got it past our security review.”
Daniel Cartier
Staff Engineer
Choose the plan that fits your verification volume
Simple, usage-based pricing to help you build, scale, and verify credentials with confidence.
Developer
Perfect for building and testing
Free forever
FEATURES
- 10,000 verifications per month
- All three ledgers
- Sandbox and testnet access
- Community support
- Rate limited to 10 req/sec
Growth
Best for apps in production
Monthly subscription
FEATURES
- Everything in Developer
- 500,000 verifications per month
- Gasless verification included
- Selective disclosure
- 99.9% uptime SLA
Enterprise
Built for issuers and institutions
Talk to us
FEATURES
- Everything in Growth
- Unlimited verifications
- Private oracle deployment
- Hyperledger registry indexing
- Dedicated support and onboarding
Connect every ledger you build on in one place
Seamlessly connect your chains, registries, and credential formats to get one consistent way to verify identity.
Cryptographic security. Private fields never leave their network.
Verified across 3 ledgers. Built on W3C open standards.
Insights to help you ship identity across chains
Learn how to issue credentials, verify them anywhere, and build cross-chain identity with practical guides.
Why your DID stops working on the next chain
A look at what actually breaks when a credential issued on one ledger meets a verifier on another, and why reissuing isn't the fix.
Selective disclosure without leaving your network
How to prove a customer is verified while every private field stays inside your permissioned registry.
