goplausible/algorand-interaction

Algorand MCP Interaction

Interact with Algorand blockchain through the Algorand MCP server (121 tools across 14 categories).

Key Characteristics

• Secure signing — use wallet_* tools to sign; private keys are never available to you
• Multi-network — supports mainnet, testnet, and localnet

Calling MCP Tools

MCP tools are deferred — you MUST use ToolSearch to load them before calling:

ToolSearch("+algorand wallet")                                    # Search by keyword — loads matching tools
ToolSearch("select:mcp__algorand-mcp__wallet_get_info")           # Load a specific tool by full name

Once loaded, call them normally:

mcp__algorand-mcp__wallet_get_info { "network": "testnet" }
mcp__algorand-mcp__make_payment_txn { "from": "ADDR", "to": "ADDR", "amount": 1000000, "network": "testnet" }

Full tool name pattern: mcp__algorand-mcp__<tool_name>. If you get "tool not found", use ToolSearch("+algorand <keyword>") to load it first.

Session Start Checklist

At EVERY session start:

1. Load tools first: Call ToolSearch("+algorand wallet") to load wallet tools — MCP tools are deferred and MUST be loaded via ToolSearch before use
2. Check wallet: mcp__algorand-mcp__wallet_get_info with target network — verify an account exists and is active
3. If no accounts: Guide user to create one with wallet_add_account (load via ToolSearch first)
4. If needs funding: Generate ARC-26 QR with generate_algorand_qrcode — returns { qr, uri, link, expires_in }. Display the qr text block and shareable link. Or direct to testnet faucet: https://lora.algokit.io/testnet/fund
5. If needs USDC funding: Generate ARC-26 QR with generate_algorand_qrcode — returns { qr, uri, link, expires_in }. Display the qr text block and shareable link. Or direct to testnet faucet: https://faucet.circle.com/
6. Confirm network: Always confirm which network (mainnet, testnet, localnet) before transactions
7. Load additional tools as needed: Use ToolSearch("+algorand <keyword>") to load tools for the task at hand

Network Selection

Every tool that touches the blockchain accepts a network parameter:

| Value | Description | |-------|-------------| | mainnet | Algorand mainnet (default) — real value, exercise caution | | testnet | Algorand testnet — safe for development | | localnet | Local dev network (requires ALGORAND_LOCALNET_URL env var) |

Default to testnet during development.

Pre-Transaction Validation

Before ANY transaction:

1. MBR Check: Account needs 0.1 ALGO base + 0.1 per asset/app opt-in
2. Asset Opt-In: Verify with api_algod_get_account_asset_info before ASA transfers
3. Fees: Every txn costs 0.001 ALGO (1,000 microAlgos) minimum
4. Balance Check: Fetch current balance with wallet_get_info or api_algod_get_account_info
5. Order: Fund account with ALGO first, then asset transactions

Common Mainnet Assets

| Asset | ASA ID | Decimals | |-------|--------|----------| | ALGO | native | 6 | | USDC | 31566704 | 6 | | USDT | 312769 | 6 | | goETH | 386192725 | 8 | | goBTC | 386195940 | 8 |

Always verify asset IDs on-chain — scam tokens use similar names. Use api_pera_asset_verification_status to check verification tier before transacting unknown assets.

Amounts and Decimals

| Asset | Unit | 1 Whole Token = | |-------|------|-----------------| | ALGO | microAlgos | 1,000,000 | | USDC (ASA 31566704) | micro-units | 1,000,000 (6 decimals) | | Custom ASAs | base units | Depends on decimals field |

Always check asset's decimals field with api_algod_get_asset_by_id before computing amounts.

Transaction Types

• pay: ALGO transfers → make_payment_txn
• axfer: Asset transfers, opt-in, clawback → make_asset_transfer_txn
• acfg: Asset create/configure/destroy → make_asset_create_txn, make_asset_config_txn, make_asset_destroy_txn
• afrz: Asset freeze/unfreeze → make_asset_freeze_txn
• appl: Smart contract calls → make_app_create_txn, make_app_call_txn, make_app_update_txn, make_app_delete_txn, make_app_optin_txn, make_app_closeout_txn, make_app_clear_txn
• keyreg: Consensus key registration → make_keyreg_txn

Wallet Transaction Workflow (Recommended)

| Step | Tool | Purpose | |------|------|---------| | 1 | wallet_get_info | Verify active account, check balance | | 2 | Query tools | Get blockchain data (account info, asset info, etc.) | | 3 | make_*_txn | Build the transaction | | 4 | wallet_sign_transaction | Sign with active wallet account (enforces limits) | | 5 | send_raw_transaction | Submit signed transaction to network | | 6 | Query tools | Verify result on-chain |

One-Step Asset Opt-In

For asset opt-ins, use the shortcut:

wallet_optin_asset { assetId: 31566704, network: "testnet" }

External Key Transaction Workflow

When the user provides their own secret key (not using the wallet):

| Step | Tool | Purpose | |------|------|---------| | 1 | make_*_txn | Build the transaction | | 2 | sign_transaction | Sign with provided secret key hex | | 3 | send_raw_transaction | Submit signed transaction |

Atomic Group Transaction Workflow

For atomic (all-or-nothing) multi-transaction groups:

| Step | Tool | Purpose | |------|------|---------| | 1 | make_*_txn (multiple) | Build each transaction | | 2 | assign_group_id | Assign group ID to all transactions | | 3 | wallet_sign_transaction_group | Sign all transactions in group with wallet | | 4 | send_raw_transaction | Submit all signed transactions |

Best-Price Swap via Haystack Router (DEX Aggregator)

Haystack Router aggregates quotes across multiple Algorand DEXes (Tinyman, Pact, Folks) and LST protocols (tALGO, xALGO) to find the optimal swap route.

| Step | Tool | Purpose | |------|------|---------| | 1 | wallet_get_info | Verify active account, check balance | | 2 | api_haystack_needs_optin | Check if address needs opt-in for the target asset | | 3 | wallet_optin_asset | Opt-in if needed | | 4 | api_haystack_get_swap_quote | Preview best-price quote — show user output, USD values, route, price impact | | 5 | User confirms | Always confirm before executing | | 6 | api_haystack_execute_swap | All-in-one: quote + sign via wallet + submit + confirm |

CRITICAL — Swap direction (type parameter):

• "Buy 10 ALGO" → user wants exactly 10 ALGO out → type: "fixed-output", amount = 10000000
• "Sell/swap 10 ALGO" → user spends exactly 10 ALGO → type: "fixed-input", amount = 10000000
• "Buy USDC for 10 ALGO" → user spends exactly 10 ALGO → type: "fixed-input", amount = 10000000
• Rule: "buy X of Y" = fixed-output. "sell/swap/use X of Y" = fixed-input. If ambiguous, ask.

For detailed Haystack Router workflows (batch swaps, configuration, slippage guidance), load the haystack-router-interaction skill. For building swap UIs or integrating the @txnlab/haystack-router SDK, load the haystack-router-development skill.

Alpha Arcade Prediction Markets

Trade on-chain prediction markets (YES/NO outcomes) denominated in USDC via the Alpha Arcade integration (14 tools).

| Step | Tool | Purpose | |------|------|---------| | 1 | wallet_get_info | Verify active account, check ALGO + USDC balance | | 2 | alpha_get_live_markets | Browse available markets | | 3 | alpha_get_orderbook | Check liquidity and prices for a market | | 4 | alpha_create_market_order or alpha_create_limit_order | Place an order | | 5 | alpha_get_positions / alpha_get_open_orders | Check portfolio |

All prices and quantities use microunits (1,000,000 = $1.00 or 1 share). Orders require both ALGO (~0.957 per escrow) and USDC collateral.

For detailed Alpha Arcade workflows (orderbook mechanics, multi-choice markets, split/merge shares, claiming, collateral model), load the alpha-arcade-interaction skill.

Tool Categories

Wallet (10): wallet_add_account, wallet_remove_account, wallet_list_accounts, wallet_switch_account, wallet_get_info, wallet_get_assets, wallet_sign_transaction, wallet_sign_transaction_group, wallet_sign_data, wallet_optin_asset

Account (8): create_account, rekey_account, mnemonic_to_mdk, mdk_to_mnemonic, secret_key_to_mnemonic, mnemonic_to_secret_key, seed_from_mnemonic, mnemonic_from_seed

Utility (13): ping, validate_address, encode_address, decode_address, get_application_address, bytes_to_bigint, bigint_to_bytes, encode_uint64, decode_uint64, verify_bytes, sign_bytes, encode_obj, decode_obj

Transaction (18): make_payment_txn, make_keyreg_txn, make_asset_create_txn, make_asset_config_txn, make_asset_destroy_txn, make_asset_freeze_txn, make_asset_transfer_txn, make_app_create_txn, make_app_update_txn, make_app_delete_txn, make_app_optin_txn, make_app_closeout_txn, make_app_clear_txn, make_app_call_txn, assign_group_id, sign_transaction, encode_unsigned_transaction, decode_signed_transaction

Algod (5): compile_teal, disassemble_teal, send_raw_transaction, simulate_raw_transactions, simulate_transactions

Algod API (13): api_algod_get_account_info, api_algod_get_account_application_info, api_algod_get_account_asset_info, api_algod_get_application_by_id, api_algod_get_application_box, api_algod_get_application_boxes, api_algod_get_asset_by_id, api_algod_get_pending_transaction, api_algod_get_pending_transactions_by_address, api_algod_get_pending_transactions, api_algod_get_transaction_params, api_algod_get_node_status, api_algod_get_node_status_after_block

Indexer API (17): api_indexer_lookup_account_by_id, api_indexer_lookup_account_assets, api_indexer_lookup_account_app_local_states, api_indexer_lookup_account_created_applications, api_indexer_search_for_accounts, api_indexer_lookup_applications, api_indexer_lookup_application_logs, api_indexer_search_for_applications, api_indexer_lookup_application_box, api_indexer_lookup_application_boxes, api_indexer_lookup_asset_by_id, api_indexer_lookup_asset_balances, api_indexer_lookup_asset_transactions, api_indexer_search_for_assets, api_indexer_lookup_transaction_by_id, api_indexer_lookup_account_transactions, api_indexer_search_for_transactions

NFDomains (6): api_nfd_get_nfd, api_nfd_get_nfds_for_addresses, api_nfd_get_nfd_activity, api_nfd_get_nfd_analytics, api_nfd_browse_nfds, api_nfd_search_nfds

Tinyman DEX (9): api_tinyman_get_pool, api_tinyman_get_pool_analytics, api_tinyman_get_pool_creation_quote, api_tinyman_get_liquidity_quote, api_tinyman_get_remove_liquidity_quote, api_tinyman_get_swap_quote, api_tinyman_get_asset_optin_quote, api_tinyman_get_validator_optin_quote, api_tinyman_get_validator_optout_quote

Haystack Router (3): api_haystack_get_swap_quote, api_haystack_execute_swap, api_haystack_needs_optin

Pera Asset Verification (3): api_pera_asset_verification_status, api_pera_verified_asset_details, api_pera_verified_asset_search

Alpha Arcade (14): alpha_get_live_markets, alpha_get_reward_markets, alpha_get_market, alpha_get_orderbook, alpha_get_open_orders, alpha_get_positions, alpha_create_limit_order, alpha_create_market_order, alpha_cancel_order, alpha_amend_order, alpha_propose_match, alpha_split_shares, alpha_merge_shares, alpha_claim

ARC-26 URI (1): generate_algorand_qrcode

Knowledge Base (1): get_knowledge_doc

Pagination

API responses are paginated. All API tools accept optional itemsPerPage (default 10) and pageToken parameters. Pass pageToken from a previous response to fetch the next page.

x402 Payment Workflow

IMPORTANT: Do NOT attempt x402 payments using only this skill. When you encounter an HTTP 402 response or need to pay for an x402-protected resource, you MUST load the algorand-x402-payment skill which contains the complete, authoritative payment flow.

This skill provides the MCP tools needed for x402 (wallet, transactions, signing), but the algorand-x402-payment skill has the correct payload format, critical rules, and step-by-step recipe.

For reference examples, see references/examples-algorand-mcp.md.

References

For detailed tool documentation:

• Tool Reference: See references/algorand-mcp.md

For workflow examples (including x402 payment):

• Examples: See references/examples-algorand-mcp.md

NFD Important Note

When using NFD (.algo names), always use the depositAccount field from the NFD response for transactions, NOT other address fields.

Security

• Mainnet = real value — always confirm with user before mainnet transactions
• Never log, display, or store mnemonics or secret keys — use wallet_* tools for signing
• Verify recipient addresses with validate_address — transactions are irreversible
• Verify asset IDs on-chain — scam tokens use similar names

Links

• GoPlausible: https://goplausible.com
• Algorand: https://algorand.co
• Algorand x402: https://x402.goplausible.xyz
• Algorand x402 test endpoints: https://example.x402.goplausible.xyz/
• Algorand x402 Facilitator: https://facilitator.goplausible.xyz
• Testnet Faucet: https://lora.algokit.io/testnet/fund
• Testnet USDC Faucet: https://faucet.circle.com/
• Algorand Developer Docs: https://dev.algorand.co/
• Algorand Developer Docs Github : https://github.com/algorandfoundation/devportal
• Algorand Developer Examples Github : https://github.com/algorandfoundation/devportal-code-examples
• GoPlausible x402-avm Documentation and Example code
• GoPlausible x402-avm Examples template Projects
• CAIP-2 Specification
• Coinbase x402 Protocol