1---
2title: Codama Program Clients
3description: Naming conventions and patterns for Codama-generated @solana-program/* Kit-compatible clients.
4---
5 
6# Codama-Generated Program Clients
7 
8`@solana-program/*` packages are Codama-generated, Kit-compatible clients for Solana programs.
9 
10## Naming Conventions
11 
12| Category | Pattern | Example |
13|----------|---------|---------|
14| Program address | `{PROGRAM}_PROGRAM_ADDRESS` | `SYSTEM_PROGRAM_ADDRESS` |
15| Instructions | `get{Name}Instruction()` | `getTransferSolInstruction()` |
16| Instruction parse | `parse{Name}Instruction()` | `parseTransferSolInstruction()` |
17| Account fetch | `fetch{Account}()` | `fetchMint()` |
18| Account fetch maybe | `fetchMaybe{Account}()` | `fetchMaybeMint()` |
19| Account fetch all | `fetchAll{Account}()` | `fetchAllMint()` |
20| Account decode | `decode{Account}()` | `decodeMint()` |
21| Account size | `get{Account}Size()` | `getMintSize()` |
22| Codec | `get{Type}[Encoder\|Decoder\|Codec]()` | `getMintDecoder()` |
23| PDA derivation | `find{Name}Pda()` | `findAssociatedTokenPda()` |
24| Errors | `{PROGRAM}_ERROR__{NAME}` | `SYSTEM_ERROR__INSUFFICIENT_FUNDS` |
25| Error check | `is{Program}Error()` | `isSystemError()` |
26 
27## Quick Examples
28 
29### Fetch Typed Account
30 
31```ts
32import { fetchMint } from '@solana-program/token';
33 
34const mint = await fetchMint(rpc, mintAddress);
35// mint.data.decimals, mint.data.supply — fully typed
36```
37 
38### Create Instruction
39 
40```ts
41import { getTransferSolInstruction } from '@solana-program/system';
42import { lamports } from '@solana/kit';
43 
44const ix = getTransferSolInstruction({
45  source: payer,
46  destination: recipient.address,
47  amount: lamports(1_000_000n),
48});
49```
50 
51### Derive PDA
52 
53```ts
54import { findAssociatedTokenPda, TOKEN_PROGRAM_ADDRESS } from '@solana-program/token';
55 
56const [ata] = await findAssociatedTokenPda({
57  owner,
58  mint,
59  tokenProgram: TOKEN_PROGRAM_ADDRESS,
60});
61```
62 
63### Error Handling
64 
65```ts
66import { isSystemError, SYSTEM_ERROR__INSUFFICIENT_FUNDS } from '@solana-program/system';
67 
68try {
69  await sendTransaction(tx);
70} catch (e) {
71  if (isSystemError(e, SYSTEM_ERROR__INSUFFICIENT_FUNDS)) {
72    console.error('Not enough SOL');
73  }
74}
75```
76 
77## Program-Specific References
78 
79For detailed APIs:
80- [programs/system.md](programs/system.md) — Account creation, transfers, nonces
81- [programs/token.md](programs/token.md) — SPL Token operations
82- [programs/token-2022.md](programs/token-2022.md) — Token Extensions
83- [programs/compute-budget.md](programs/compute-budget.md) — CU limits & priority fees
84