20
ERC-20 Mint
Exact base-unit math, verified ABIs, minter roles, EVM nonces, receipts, and supply reconciliation.
ERC-20 architecture →
Token creation API architecture
Design a safer Token Minting API.
A practical developer reference for ERC-20, SPL, NFT, metadata, automation, signing, retry safety, and mainnet operations.
ERC-20EVM supply workflows
SPLSolana mint accounts
NFTERC-721 & ERC-1155
One operation, six controlled stages
Minting is a workflow—not a single RPC call.
A production interface must preserve intent and evidence while moving through asynchronous chain infrastructure.
Validate
Resolve the asset, network, recipient, amount, metadata, and request identity.
Authorize
Apply tenant, asset, supply, recipient, and business policy.
Persist
Create the durable operation and reserve the idempotency key first.
Sign
Use a restricted signing boundary that decodes and checks the transaction.
Submit
Broadcast once, retain the transaction identity, and handle provider ambiguity.
Reconcile
Confirm chain evidence, verify balances or ownership, and publish status.
Choose the asset model
Use the standard that matches the product.
The shared API lifecycle can be consistent without flattening contract, account, metadata, and authority differences.
SPL
SPL Token Mint
Mint accounts, associated token accounts, Token Programs, blockhash expiry, and commitment policy.
SPL architecture →721
NFT Mint API
Unique asset keys, metadata versions, token IDs, ownership evidence, and delivery states.
NFT architecture →1155
Multi-Token Batches
Per-ID supply, quantities, URI substitution, receiver checks, and item-level reconciliation.
Batch mint guide →Implementation-neutral contract
Start with a durable mint resource.
The caller declares intent. The service returns an operation ID immediately, owns asynchronous processing, and exposes chain evidence without pretending every network is identical.
- Require idempotency on every write.
- Reference reviewed server-side asset configuration.
- Use decimal strings and raw integer amounts.
- Publish explicit confirmation semantics.
- Return network-specific evidence under a stable namespace.
POST /v1/mints HTTP/1.1
Host: api.yourdomain.example
Authorization: Bearer <token>
Idempotency-Key: 5db1d9ee-8f64-4b33-9b0b-62a8d4f7f9e0
Content-Type: application/json
{
"asset_id": "rewards-usd-v1",
"network": "solana-devnet",
"standard": "spl",
"recipient": "7QhV...xP9",
"amount": "125.00",
"amount_unit": "display",
"external_reference": "reward_84721"
}Reference request; this is not a MintAPI.com production endpoint. Replace example values and apply your own authentication, authorization, and signing policy.
Production controls
Build for mistakes, timeouts, and compromise.
Reliability and security are part of token economics because a duplicate or unauthorized request can change real supply.
01
Retry safety
Canonical request hashes, unique constraints, resumable states, transaction identity, and an explicit review path for ambiguous outcomes.
Idempotency guide →02
Signing isolation
Keep private keys away from web processes and let the signer independently enforce chain, asset, function, amount, and recipient policy.
Security blueprint →03
Mainnet evidence
Verify deployed code, authority, RPC capacity, fee funding, metadata, confirmation policy, and stop controls before production enablement.
Launch checklist →Mint Architecture Journal
Latest implementation guides.
How to Choose ERC-20, SPL, ERC-721, or ERC-1155 for a Minting Product
A product-focused decision framework for fungible supply, unique assets, multi-token collections, chain constraints, metadata, custody, and operations.
Read guide →
Securing a Token Minting API: Keys, Authorization, Limits, and Audit Evidence
A defense-in-depth security model for minting APIs, including authentication, object authorization, signer isolation, request limits, webhooks, and incident controls.
Read guide →
Token Metadata API Design: Storage, Mutability, Validation, and Integrity
A practical metadata architecture for on-chain references, off-chain documents, media validation, versioning, hashes, and controlled updates.
Read guide →Frequently asked questions
Minting API fundamentals.
What is MintAPI.com?
MintAPI.com is an independent developer reference for designing token minting APIs. It explains architecture, standards, request models, signing, retries, confirmation, metadata, and security; it does not advertise a live hosted minting endpoint.
What does a token minting API do?
A token minting API converts an authorized application request into a durable workflow that validates intent, constructs a chain transaction, obtains signatures, submits once, confirms the result, and reconciles on-chain state.
Does one API model work for ERC-20 and SPL tokens?
A shared operation resource can normalize intent and status, but chain-specific details must remain explicit. ERC-20 uses contract calls and EVM account nonces, while SPL minting uses mint accounts, token accounts, authorities, and Solana transaction rules.
How should duplicate mint requests be prevented?
Require an idempotency key, bind it to a canonical request hash and authenticated scope, create the operation before external side effects, and reconcile ambiguous submissions before constructing another transaction.
Is token minting the same as deploying a token?
No. Deployment or mint-account creation defines the asset and its authorities. Minting usually creates supply or assigns an item under an already deployed contract, program, or mint account.
Build from explicit contracts
Use the reference architecture as a starting point.
Define assets, authorities, idempotency, confirmation, and reconciliation before connecting a production signer.