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Symbiosis — measured AI agent skill | DecimalAI

bankrbot/symbiosis

NewSkillScoreMaintained

Cross-chain token swaps across 54+ blockchains via Symbiosis protocol. Use when the user wants to swap or bridge tokens between any chains — Base, Ethereum, Polygon, Arbitrum, Optimism, BNB Chain, Avalanche, Solana, Bitcoin, TON, Tron, and 40+ more. Supports any-to-any token swaps with automatic routing. Uses Bankr Submit API to execute transactions.

financeby bankrbot

Links this skill to your agents and keeps it current with the author’s updates.

Automatic

Finance & Accounting pack

decimalai skills pull bankrbot-symbiosis

Get this skill — curl · raw file

curl -fsSL https://app.decimal.ai/s/bankrbot-symbiosis/SKILL.md

Raw file: /s/bankrbot-symbiosis/SKILL.md ↗ · machine-readable summary at /s/bankrbot-symbiosis.json ↗

In productionGlobal

how this skill behaves on real traffic · last 30 days

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Anonymized aggregate across every org using this skill — proof from real production use, not a demo.

Does this skill help? · Benchmark: with vs. withoutsign in to run this on your agents

22 test cases from the publisher’s eval.yaml · each run twice on gemini-3.6-flash — with the skill injected, then without · last run 4h ago

—+64% tokens0% turns50% of whole cases pass with skill (11/22)

Test case	Without → With	Effect	Δ tokens	Δ turns
case-05	✗→✓	▲ Improved	222%	0%
case-07	✗→✓	▲ Improved	28%	0%
case-09	✗→✓	▲ Improved	17%	0%
case-10	✗→✓	▲ Improved	84%	0%
case-11	✗→✓	▲ Improved	49%	0%

Showing 5 of 22 cases

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

bankrbot / skills

symbiosis/SKILL.md

View on GitHub ↗

Imported 8/3/2026Version v1Bundled 4 files · scripts

Skill contents

scripts/

references/

SKILL.md

Symbiosis

Cross-chain token swaps across 54+ blockchains. Swap any token on any chain to any token on any other chain.

When To Use

Use Symbiosis when the user wants to:

Bridge or swap tokens between different chains (e.g., USDC from Base to Polygon, ETH from Ethereum to Arbitrum)
Access chains beyond Bankr's native 5 (Arbitrum, Optimism, BNB Chain, Avalanche, zkSync, Linea, Scroll, Mantle, Blast, and 40+ more)
Swap to/from Bitcoin, TON, or Tron
Get a cross-chain quote without executing

Quick Start

Get a Quote

How much USDC will I get on Polygon if I bridge 10 USDC from Base?

Run the quote script:

bash
scripts/symbiosis-quote.py 8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 6 10 137 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 6

Execute a Swap

Bridge 2 USDC from Base to Polygon using Symbiosis

Run the swap script:

bash
scripts/symbiosis-swap.py 8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 6 2 137 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 6

Script Usage

symbiosis-swap.py

Executes a full cross-chain swap: gets quote from Symbiosis API, approves token if needed, submits swap transaction via Bankr Submit API.

scripts/symbiosis-swap.py <src_chain_id> <src_token_address> <src_decimals> <amount> <dst_chain_id> <dst_token_address> <dst_decimals> [slippage]

amount — human-readable (e.g., "2" for 2 USDC, "0.1" for 0.1 ETH)
slippage — optional, in basis points (default: 200 = 2%)
Reads Bankr API key from ~/.bankr/config.json
Automatically gets wallet address from Bankr
Outputs transaction hash and Explorer tracking link

symbiosis-quote.py

Gets a quote without executing. Same arguments, no slippage parameter.

scripts/symbiosis-quote.py <src_chain_id> <src_token_address> <src_decimals> <amount> <dst_chain_id> <dst_token_address> <dst_decimals>

Common Chains and Tokens

Bankr Wallet Chains

| Chain | ID | USDC Address | USDC Dec | |-------|----|-------------|----------| | Base | 8453 | 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 6 | | Ethereum | 1 | 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 | 6 | | Polygon | 137 | 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 | 6 |

Additional Chains via Symbiosis

| Chain | ID | USDC Address | USDC Dec | |-------|----|-------------|----------| | Arbitrum | 42161 | 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 | 6 | | Optimism | 10 | 0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85 | 6 | | BNB Chain | 56 | 0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d | 18 | | Avalanche | 43114 | 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E | 6 |

Native Tokens

Use 0x0000000000000000000000000000000000000000 as address for native gas tokens (ETH, POL, BNB, AVAX, etc.).

Reference: references/chains-and-tokens.md for the full list.

Examples

EVM to EVM

bash
# 5 USDC: Base -> Arbitrum
scripts/symbiosis-swap.py 8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 6 5 42161 0xaf88d065e77c8cC2239327C5EDb3A432268e5831 6

# 0.01 ETH: Ethereum -> Base
scripts/symbiosis-swap.py 1 0x0000000000000000000000000000000000000000 18 0.01 8453 0x0000000000000000000000000000000000000000 18

# 10 USDC: Polygon -> BNB Chain
scripts/symbiosis-swap.py 137 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 6 10 56 0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d 18

# 0.5 ETH: Base -> Optimism
scripts/symbiosis-swap.py 8453 0x0000000000000000000000000000000000000000 18 0.5 10 0x0000000000000000000000000000000000000000 18

Cross-ecosystem (Symbiosis-only routes)

bash
# 10 USDC: Base -> Solana
# Note: Solana chain ID in Symbiosis is 5426
# Solana USDC: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v (but use Symbiosis synthetic address)
scripts/symbiosis-swap.py 8453 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 6 10 5426 0x0000000000000000000000000000000000000000 9

Prompt Examples

Users might say:

"Bridge 5 USDC from Base to Arbitrum"
"Swap 0.1 ETH from Ethereum to Polygon"
"Move my USDC from Base to Optimism"
"How much will I get if I bridge 100 USDC from Base to Avalanche?"
"Cross-chain swap 50 USDC from Polygon to BNB Chain"
"Bridge ETH from Base to Solana"

For each request: identify source chain + token, destination chain + token, look up chain IDs and token addresses from the tables above, and run the appropriate script.

How It Works

Quote: Script calls Symbiosis API (POST /crosschain/v1/swap) with token details and wallet address
Approve: If source token needs approval, script submits an ERC20 approve transaction via POST https://api.bankr.bot/agent/submit
Swap: Script submits the swap transaction via POST https://api.bankr.bot/agent/submit
Track: Returns an Explorer link for cross-chain status tracking

All transactions are submitted through the Bankr Submit API using the user's Bankr wallet. No additional wallets or keys needed.

Resources

Explorer: https://explorer.symbiosis.finance
Website: https://symbiosis.finance
API Docs: references/api-reference.md
Chains & Tokens: references/chains-and-tokens.md

Want to see if bankrbot/symbiosis would activate on your phrasing? Try it before you install — no LLM call, no signup.

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