Free tier to get started. Pay per verification with card or USDC. Volume discounts for high-throughput integrations.
Each tier includes monthly credits and sets your daily rate limit. Pay with card.
GET requests (reads) use the daily limit and are free. Credits are only consumed by POST endpoints that write verifications.
Top up your API key directly on-chain. Larger deposits unlock lower per-call rates. USDC and USDT accepted on Ethereum, Base, Polygon, Arbitrum, Optimism, BNB Chain, Avalanche, and Solana. BTC accepted on Bitcoin.*
Send USDC, USDT, or BTC to the platform wallet on any supported chain above, then call POST /v1/credits/buy with your transaction hash. Credits are added instantly after on-chain verification. BTC is converted to USD at the market rate.
EVM: 0xAd982CB19aCCa2923Df8F687C0614a7700255a23
Solana: 6a1mLjefhvSJX1sEX8PTnionbE9DqoYjU6F6bNkT4Ydr
Bitcoin: bc1qg7qnerdhlmdn899zemtez5tcx2a2snc0dt9dt0
*Crypto sent on unsupported chains or to the wrong address cannot be recovered.
All crypto credit purchases are final and non-refundable.
Credits are consumed by POST endpoints that perform on-chain verification. Dollar amounts shown at the base rate ($0.04/credit).
| Endpoint | Credits | Base Cost | At $500+ Rate |
|---|---|---|---|
| POST /v1/attest | 1 | $0.04 | $0.02 |
| POST /v1/attest (Merkle proof) | 2 | $0.08 | $0.04 |
| POST /v1/trust | 3 | $0.12 | $0.06 |
| POST /v1/trust (Merkle proof) | 6 | $0.24 | $0.12 |
| POST /v1/trust/batch (per wallet) | 3 | $0.12 | $0.06 |
| POST /v1/verify, /v1/codes, ACP, UCP | 1* | See merchant packages below | |
* Commerce endpoints consume merchant credits (per-merchant pool), not API key credits. All other endpoints consume API credits (per-key pool).
For merchants running condition-based discounts, QR/NFC verification, and commerce protocol integrations. Buy via dashboard (card) or POST /v1/merchants/{id}/credits (USDC at $0.04/credit flat).
| Package | Credits | Price | Per Credit |
|---|---|---|---|
| Basic | 500 | $20 | $0.04 |
| Standard | 2,000 | $40 | $0.02 |
| Pro | 5,000 | $75 | $0.015 |
Belong to your API key. Consumed by attestation and trust endpoints. Included with your subscription tier or purchased with USDC via POST /v1/credits/buy.
Belong to each merchant account. Consumed by commerce endpoints (verify, codes, ACP, UCP). Purchased separately via POST /v1/merchants/{id}/credits.