haystack-router-interaction

name

haystack-router-interaction

description

Route and execute optimal token swaps on Algorand using Haystack Router via Algorand MCP tools. Use when getting best-price quotes across multiple Algorand DEXes and LST protocols, executing atomic swaps, and checking asset opt-in — all through the Algorand MCP server. Strong triggers include haystack swap, best price swap, DEX aggregator swap, swap ALGO to USDC, api_haystack, haystack quote, execute swap, swap routing, optimal swap, multi-DEX swap.

Haystack Router (Interaction)

This is the parent skill for interacting with Haystack Router through Algorand MCP tools — getting quotes, executing swaps, and checking opt-in status. All operations use the Algorand MCP wallet for signing; no SDK installation or API keys needed.

Need general wallet/transaction guidance? See the algorand-interaction skill for wallet setup, session start checklist, network selection, and pre-transaction validation.

Haystack Router is a DEX aggregator and smart order routing protocol on Algorand. It finds optimal swap routes across multiple DEXes (Tinyman V2, Pact, Folks) and LST protocols (tALGO, xALGO), then executes them atomically through on-chain smart contracts.

mcporter Syntax (OpenClaw CLI)

When calling Haystack Router MCP tools via mcporter in OpenClaw CLI:

mcporter call algorand-mcp.api_haystack_get_swap_quote --args '{"fromASAID": 0, "toASAID": 31566704, "amount": 1000000, "network": "mainnet"}'

Key: use server.tool (dot notation) with --args '{"json"}'. See algorand-interaction skill for full mcporter reference.

Network Selection

Every Haystack Router tool accepts a network parameter:

Value	Description
testnet	Algorand testnet — default if omitted (algorand-mcp 4.2.5+), safe for development
mainnet	Algorand mainnet — real value, exercise caution. Pass only when the user explicitly names mainnet

Mainnet is never implicit. If the user does not name a network, use testnet. Switch to mainnet only on an explicit user instruction, and confirm the full swap (input/output asset, amount, quote) before execution.

Algorand MCP Haystack Router Tools

Three dedicated Algorand MCP tools provide full Haystack Router functionality. These handle quoting, execution (with wallet signing), and opt-in checking — no raw mnemonics or secret keys needed.

api_haystack_get_swap_quote

Get an optimized swap quote without executing. Use to preview pricing, route, and price impact before confirming with user.

→ api_haystack_get_swap_quote {
    fromASAID: 0,             // Input asset (0 = ALGO)
    toASAID: 31566704,        // Output asset (USDC)
    amount: 1000000,          // 1 ALGO in base units
    type: "fixed-input",      // or "fixed-output"
    address: "<address>",     // optional, for opt-in detection
    maxGroupSize: 16,         // optional
    maxDepth: 4,              // optional
    network: "mainnet"
  }

Returns: expectedOutput, inputAmount, usdIn, usdOut, userPriceImpact,
         route, flattenedRoute, requiredAppOptIns, protocolFees

api_haystack_execute_swap

All-in-one swap: quote → sign (via wallet) → submit → confirm. Uses the active wallet account for signing.

→ api_haystack_execute_swap {
    fromASAID: 0,             // Input asset
    toASAID: 31566704,        // Output asset
    amount: 1000000,          // Amount in base units
    slippage: 1,              // 1% slippage tolerance
    type: "fixed-input",      // optional
    note: "my swap",          // optional text note
    maxGroupSize: 16,         // optional
    maxDepth: 4,              // optional
    network: "mainnet"
  }

Returns: status, confirmedRound, txIds, signer, nickname, quote details,
         summary (inputAmount, outputAmount, totalFees, transactionCount)

ALWAYS present txIds to user with explorer links after execution:
  Mainnet: https://allo.info/tx/{txId}
  Testnet: https://lora.algokit.io/testnet/transaction/{txId}

api_haystack_needs_optin

Check if an address needs to opt into an asset before swapping.

→ api_haystack_needs_optin {
    address: "<address>",
    assetId: 31566704,
    network: "mainnet"
  }

Returns: { address, assetId, needsOptIn: true/false, network }

Algorand MCP Agent Swap Workflow

Step 1: Check wallet
  → wallet_get_info { network }

Step 2: Check opt-in (if swapping to an ASA)
  → api_haystack_needs_optin { address, assetId, network }
  → If needed: wallet_optin_asset { assetId, network }

Step 3: Preview quote (recommended — show user before executing)
  → api_haystack_get_swap_quote { fromASAID, toASAID, amount, address, network }
  → Present to user: expected output, USD values, route, price impact

Step 4: User confirms → Execute
  → api_haystack_execute_swap { fromASAID, toASAID, amount, slippage, network }
  → Returns confirmed result with summary

Step 5: Present transaction IDs to user
  → Show all txIds from the response with explorer links:
     Mainnet: https://allo.info/tx/{txId}
     Testnet: https://lora.algokit.io/testnet/transaction/{txId}

Key rules:

• Always check wallet with wallet_get_info before any swap
• Always confirm with the user before executing (show quote details)
• The execute tool handles signing via the active wallet — no manual signing needed
• Default to testnet during development; confirm before mainnet
• Quotes are time-sensitive — execute promptly after user confirms

Key Concepts

• Amounts are always in base units (microAlgos for ALGO, smallest unit for ASAs)
• ASA IDs: 0 = ALGO, 31566704 = USDC, etc.
• Slippage: Percentage tolerance on output (e.g., 1 = 1%). Applied to the final output, not individual hops.
• Quote types: fixed-input (default) — specify input amount; fixed-output — specify desired output
• Routing: Supports multi-hop and parallel (combo) swaps for optimal pricing

CRITICAL: fixed-input vs fixed-output — Choosing the Correct Swap Type

The type parameter determines which side of the swap is exact. Getting this wrong means the user spends more or receives less than intended. Parse the user's intent carefully.

Type	Meaning	amount specifies	The other side is	Use when
fixed-input	Spend exactly this much	Input amount (what you send)	Estimated (output varies)	"Swap 10 ALGO for USDC", "Sell 10 ALGO", "Use 10 ALGO to buy USDC"
fixed-output	Receive exactly this much	Output amount (what you get)	Estimated (input varies)	"Buy 10 ALGO with USDC", "I want exactly 5 USDC", "Get me 10 ALGO"

Mapping User Intent — Examples

User says	Type	fromASAID	toASAID	amount	Why
"Buy 10 ALGO with USDC"	fixed-output	31566704 (USDC)	0 (ALGO)	10000000	User wants exactly 10 ALGO out
"Buy USDC for 10 ALGO"	fixed-input	0 (ALGO)	31566704 (USDC)	10000000	User wants to spend exactly 10 ALGO
"Swap 5 USDC to ALGO"	fixed-input	31566704 (USDC)	0 (ALGO)	5000000	User wants to spend exactly 5 USDC
"I want exactly 100 USDC"	fixed-output	0 (ALGO)	31566704 (USDC)	100000000	User wants exactly 100 USDC out
"Sell 10 ALGO"	fixed-input	0 (ALGO)	31566704 (USDC)	10000000	User wants to spend exactly 10 ALGO
"Get me 10 ALGO"	fixed-output	31566704 (USDC)	0 (ALGO)	10000000	User wants exactly 10 ALGO out

Rules

1. "Buy X of Y" → fixed-output, amount = X (in base units of Y), toASAID = Y
2. "Swap/sell/use X of Y for Z" → fixed-input, amount = X (in base units of Y), fromASAID = Y
3. "I want exactly X of Y" → fixed-output, amount = X (in base units of Y), toASAID = Y
4. When ambiguous, ask the user: "Do you want to spend exactly X or receive exactly X?"
5. The amount field always refers to the fixed side — input amount for fixed-input, output amount for fixed-output
6. Always show the quote before executing so the user can verify the estimated other side

Reference Files

Read the appropriate file based on the task:

Task	Reference
Quick start and Algorand MCP tool reference	getting-started.md
Get swap quotes, display pricing	quotes.md
Execute swaps via Algorand MCP tools	swaps.md
Automate swaps via Algorand MCP tools	node-automation.md
Network, slippage, rate limits, ASA IDs	configuration.md

How to Use This Skill

1. Start here to understand the three Haystack Router MCP tools and the swap workflow
2. Read the topic .md file for detailed guidance on quotes, swaps, or automation
3. For wallet setup and general blockchain interaction, see the algorand-interaction skill