Proof Holdings vs thirdweb
thirdweb is an all-in-one web3 developer platform — wallets, contracts, and SIWE-based auth. Its Auth is aligned with the verify-don't-provision idea, but it issues a first-party token for its own stack; Proof Holdings issues a neutral proof anyone can check. Proof's wallet verification is coming soon.
thirdweb is a fine all-in-one for building web3 apps; its auth token is first-party. Proof's is a neutral, portable attestation — one API for the phones, emails, and domains your stack runs on today, with wallet trust next.
One API · One key
One key does what a stack of vendors does
Most platforms on this page run wallet infrastructure. Proof — like SIWE — never touches a key: a single API whose reverse-OTP flow issues a signed, offline-verifiable ES256 token for each of these:
Flat price · Any asset
One flat price for every asset — phone, email, and domain today, with wallet and social coming soon. No per-seat, no per-MAU, no per-verification tiers — the meter that makes every rival's bill jump.
- Free every month
- 300 proofs
- Pay as you go
- €0.03 / proof
- At volume
- €0.0079 / proof
Feature Comparison
Swipe to compare →
| Feature | Proof Holdings | thirdweb |
|---|---|---|
| Core job | Verify control of an existing wallet → neutral proof | Full web3 platform (wallets, contracts, Auth) |
| Provisions wallets / runs key infra | No | Yes |
| Verify an existing wallet (SIWE) | Coming soon | Yes — thirdweb Auth (SIWE) |
| Token type | ES256 proof (neutral; coming for wallet) | SIWE JWT signed by your admin wallet (first-party) |
| Token meaning | Proof of control (neutral verifier) | First-party session (self-issued) |
| Also verifies phone / email / domain | Live today | No |
| Chains | 8 planned | ~2,700 EVM + Solana |
| Pricing model | Per-proof | Per-MAW |
| Free tier | 300 proofs/month | 1,000 MAW (all plans) |
Pricing
Pricing model
Proof Holdings
Per-proof: €0.0079, 300 free/month
thirdweb
Per-MAW: 1,000 free; Growth $99/mo, Scale $499/mo, Pro $1,499+/mo
Key custody & liability
Proof Holdings
None — Proof never holds a key
thirdweb
Provisions wallets + runs key infrastructure
Neutral vs first-party token
Proof Holdings
Neutral proof from a verifier that isn't your app
thirdweb
SIWE JWT self-issued by your own admin wallet
All-in-one web3 platform
Proof Holdings
Not what Proof does
thirdweb
Wallets, contracts, Auth, infra in one toolkit
A platform vs a verification primitive
thirdweb is a broad web3 developer platform — in-app and server wallets, smart-contract tooling, and thirdweb Auth (SIWE-based) across ~2,700 EVM chains plus Solana. Its Auth is philosophically aligned with verify-don't-provision, which is worth crediting. But provisioning is the headline, and thirdweb Auth's token is a SIWE JWT signed by your own admin wallet — a first-party, self-issued session (secp256k1, a non-standard JWT that needs Ethereum crypto to verify).
Proof Holdings is narrower and neutral: it verifies control of a wallet the user already owns and returns a proof issued by a verifier that isn't your app, in a standard portable format, spanning phone, email, and domain today with wallet coming soon. If you want the whole web3 toolkit, thirdweb is excellent; if you want a neutral, multi-asset proof-of-control primitive, that's Proof.
First-party vs neutral
The subtle distinction: thirdweb Auth is self-sovereign in the sense that *you* sign the token with your admin wallet — great for an app authenticating its own users, but it means the attestation is first-party (you vouching for your user). Proof's token is third-party: a neutral verifier attesting that control of a specific wallet was proven.
For many apps, first-party is exactly right. When you need an attestation a counterparty or auditor will trust without trusting *you* — that's where a neutral proof matters, and where Proof fits alongside a platform like thirdweb.
When to use thirdweb
- You want an all-in-one web3 platform: wallets, contracts, and auth
- You want SIWE-based auth self-issued by your own app
- You're building across many EVM chains (plus Solana)
- You want to provision in-app, ecosystem, or server wallets
- Per-MAW pricing across a full toolkit fits your build
When to use Proof Holdings
- You want a neutral, third-party proof of wallet control
- You don't want to provision wallets or run key infrastructure
- You want one proof format across wallet, phone, email, and domain
- You want proof-of-control as a standalone primitive, not part of a platform
- You'd rather pay per verification than per monthly active wallet
- You need an attestation a counterparty will trust without trusting your app
Frequently Asked Questions
Ready to try Proof Holdings?
300 free proofs per month. No credit card required.
Building with an AI agent? The 176-tool MCP server and test mode let an agent run a real verification right now — machine quickstart in llms-full.txt.