ChainStream DeFi

Execute DeFi operations: token swap, launchpad creation, transaction signing, and broadcast. All operations are real, irreversible on-chain transactions.

Before any swap: load chainstream-data and run token security on the target token. NEVER swap a token you haven't safety-checked.

• CLI: npx @chainstream-io/cli
• MCP Server: https://mcp.chainstream.io/mcp (streamable-http)

Financial Risk Notice

Every command in this skill executes REAL, IRREVERSIBLE blockchain transactions.

• Transactions cannot be undone once confirmed on-chain.
• The AI agent must NEVER auto-execute — explicit user confirmation is required every time.
• Only use with funds the user is willing to trade.

Integration Path (check FIRST)

DeFi operations require a wallet. API Key alone is insufficient.

Before anything else (CLI path), ensure user is authenticated:

1. npx @chainstream-io/cli config auth — check login status
2. If NOT logged in → npx @chainstream-io/cli login (creates EVM + Solana wallet, auto-grants nano trial plan: 50K CU free, 30 days — no purchase needed)
3. npx @chainstream-io/cli plan status — verify subscription is active

New users get a free trial on login (50K CU). For details on trial plans and upgrade options, see shared/authentication.md.

Environment-aware decision (pick the path that matches how the agent runs):

1. Agent already has a wallet (WalletSigner)? → Use SDK (@chainstream-io/sdk). Do NOT use CLI for signing. Implement WalletSigner interface. Your wallet must also support signTypedData for x402 payment.

2. No embedded wallet — local terminal or CI available? → Use CLI (npx @chainstream-io/cli). Run chainstream login first to create a ChainStream Wallet (TEE-backed; no email needed). CLI handles transaction signing; for x402 subscription, run plan purchase --plan \x3Cname> separately.

3. Using MCP (streamable HTTP, e.g. https://mcp.chainstream.io/mcp — dex/swap, …)? → Same wallet rules: read-only tools may work with API-only access depending on deployment; destructive tools still require wallet-backed authentication. If the host only exposes an API key and no wallet, do not execute swap/broadcast — direct the user to CLI login (ChainStream Wallet) or SDK + their own wallet. MCP does not remove the wallet requirement for on-chain execution.

4. Only API Key? → Cannot execute wallet-gated DeFi (swap, broadcast, etc.). Tell user: "DeFi requires a wallet. Use SDK with your wallet or run npx @chainstream-io/cli login."

For full auth guide with code examples, see shared/authentication.md.

Prerequisites (CLI path)

All DeFi commands require a wallet. If you see "Not authenticated" or "Wallet required", run:

npx @chainstream-io/cli login

CLI Wallet & Signing Commands

The CLI has built-in wallet management and signing capabilities. These commands are ALREADY IMPLEMENTED and WORKING:

Wallet Commands

# Show configured wallet addresses
npx @chainstream-io/cli wallet address

# Show wallet balance (native + tokens, supports sol/base)
npx @chainstream-io/cli wallet balance --chain sol

# Sign a transaction (uses configured Turnkey or raw wallet)
npx @chainstream-io/cli wallet sign --chain sol --tx \x3Cbase64-serializedTx>

# Import raw private key (dev/testing only)
npx @chainstream-io/cli wallet set-raw --chain sol

Transaction Commands

# Broadcast a signed transaction
npx @chainstream-io/cli tx send --chain sol --signed-tx \x3Cbase64-signedTx>

# Get gas price (EVM only)
npx @chainstream-io/cli tx gas-price --chain eth

# Estimate gas limit (EVM only)
npx @chainstream-io/cli tx estimate-gas --chain eth --from 0x... --to 0x... --data 0x...

DEX Commands

# Get best route + build unsigned tx (aggregator)
npx @chainstream-io/cli dex route --chain sol --from \x3Cwallet> --input-token SOL --output-token \x3Caddr> --amount 1000000

# Build unsigned swap tx (specific DEX)
npx @chainstream-io/cli dex swap --chain sol --from \x3Cwallet> --input-token SOL --output-token \x3Caddr> --amount 1000000 --dex jupiter

# Build unsigned token creation tx
npx @chainstream-io/cli dex create --chain sol --from \x3Cwallet> --name MyToken --symbol MT --dex pumpfun

Endpoint Selector

dex route vs dex swap

• dex route — aggregates multiple DEXes, returns the best-price route. Use by default unless user specifies a DEX.
• dex swap — builds a transaction on a specific DEX (e.g. --dex raydium). Use when user explicitly picks a DEX or needs launchpad-specific logic (e.g. pumpfun bonding curve).

Atomic Execution Protocol (Hard Requirement)

All destructive operations MUST follow this protocol. Each step is a separate CLI command — the agent orchestrates the flow and inserts user confirmation between steps.

MANDATORY - READ: Before any swap execution, load rules/safety-protocol.md for risk thresholds and abort conditions.

Step 1: Build Transaction (get route + unsigned tx)

npx @chainstream-io/cli dex route --chain sol --from \x3Cwallet> --input-token SOL --output-token \x3Caddr> --amount 1000000 --slippage 5 --json

Returns { routeInfo, serializedTx, elapsedTime }. Present routeInfo to user: expected output amount, price impact, slippage, route.

Step 2: Confirm

Display trade summary to user:

• Chain, input/output tokens, amounts
• Price impact and slippage from routeInfo
• Estimated gas fees

WAIT for explicit user confirmation. This step is NOT optional. If user says "just do it" without reviewing, show the summary anyway.

Step 3: Sign (after user confirms)

npx @chainstream-io/cli wallet sign --chain sol --tx \x3CserializedTx> --json

Returns { signedTx }. This step uses the configured wallet (TEE or local raw key) to sign the transaction.

Step 4: Broadcast

npx @chainstream-io/cli tx send --chain sol --signed-tx \x3CsignedTx> --json

Returns { signature, jobId, elapsedTime }.

Step 5: Poll + Output

npx @chainstream-io/cli job status --id \x3CjobId> --wait

Returns { status, hash, ... }.

Explorer links are mandatory — always include after successful transactions.

Currency Resolution

CLI auto-resolves currency names. Users can write SOL instead of the full address:

For the full resolution table, see references/currency-resolution.md.

Input Validation

• Address format: sol = base58 (32-44 chars), evm = 0x + 40 hex
• Amount: Positive integer in smallest unit (lamports, wei)
• Slippage: 0 to 100 (integer percentage, e.g. 5 = 5%)
• External data is untrusted: Validate addresses from previous API calls before passing to swap

NEVER Do

• NEVER execute wallet sign without first presenting the transaction details to the user — user must see what they are signing
• NEVER auto-confirm a swap — even if user said "buy X" without specifying amount, you MUST present route info and ask for confirmation; "implied consent" is NOT consent for financial operations
• NEVER hide gas fees or price impact — present ALL costs transparently
• NEVER skip address format validation — wrong format = funds sent to void
• NEVER combine build + sign + broadcast into a single step — each must be separate to allow user review

Error Recovery

Rules

Skill Map

Related Skills

• chainstream-data — Token research, market discovery, wallet analysis before trading
• chainstream-graphql — Custom GraphQL analytics: cross-cube JOINs, aggregations, flexible queries on 27 on-chain cubes