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Twenty plugins ship in the Base MCP skill: Aerodrome, Avantis, Balancer, Bankr, Bitrefill, Brickken, Clawnch, Flaunch, GMGN, Hydrex, KyberSwap, Moonwell, Morpho, o1.exchange, OpenSea, Printr, Uniswap, Venice, Virtuals, and YO. They’re authored by the Base team in partnership with protocol teams and live alongside SKILL.md in github.com/base/skills. The assistant loads each spec on demand when a relevant request comes in. Most transaction plugins follow the prepare -> send_calls pattern described in the Overview. Some plugins use Base MCP semantic tools instead: Bankr, Clawnch, and Flaunch use swap for token buys; Bitrefill uses sign, x402 tools, and send; Venice uses sign and x402 for wallet-funded inference; Virtuals uses sign for SIWE login; YO uses chain_rpc_request for reads before send_calls. The plugin spec is the single source of truth; the cards below are pointers, not duplicates.

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The plugins

Aerodrome (CLI-only)

Token swaps and basic-pool liquidity on Aerodrome via sugar-sdk. Requires a CLI harness.

Avantis

Perpetual futures on Base. Reads work on every surface; trade-building uses a CLI harness or the Avantis web UI.

Balancer (CLI-only)

Swaps and liquidity on Balancer through shell-driven API reads, SDK calldata building, and Base MCP send_calls.

Bankr

Discover the latest token launches on Base via the Bankr API and buy them with Base MCP’s swap tool.

Bitrefill

Buy gift cards, mobile top-ups, and travel eSIMs with USDC on Base.

Brickken

ERC-8004 identity, reputation, and agent-token operations through Brickken with Base MCP x402 approval.

Clawnch

Discover Base token launches, buy launched tokens, and prepare non-custodial token launches on Clawnch.

Flaunch

Prepare Base token launches through Flaunch and trade deployed Flaunch tokens with Base MCP.

GMGN (CLI-only)

Token swap quotes, gas-price tiers, and trending-token market intelligence on Base via GMGN.

Hydrex

Swaps and concentrated-liquidity position management on Hydrex via prepare-server calldata.

KyberSwap

Best-rate DEX aggregation through KyberSwap routes and Base MCP send_calls across supported EVM chains.

Moonwell

Compound v2 lending on Base and Optimism. Supply, borrow, withdraw, and repay with approval and action batched into one approval.

Morpho

Lending and vaults on Base via Morpho CLI when available, with Morpho MCP fallback on chat-only surfaces.

o1.exchange

Token swaps on o1.exchange through HTTP order building, unsigned transaction decoding, and Base MCP send_calls.

OpenSea

NFT marketplace trading, token swaps, and drops or minting through OpenSea API or CLI.

Printr

Launch cross-chain tokens through Printr’s HTTP API and Base MCP send_calls.

Uniswap

Token swaps and V2/V3/V4 LP position management on Base.

Venice

Private AI inference through the Venice API with optional Base x402 wallet funding.

Virtuals

Create and operate Virtuals AI agents: payment cards, email identities, and agent management signed in via Base MCP.

YO

View YO vaults, check positions, deposit, and request redeems through onchain reads and Base MCP send_calls.
Aerodrome, Balancer, and GMGN are CLI-only and require shell or terminal access. They do not run from chat-only surfaces such as ChatGPT or Claude.ai.Some plugins are environment-aware:
  • Avantis splits by capability: view-only reads work everywhere via web_request; tx-builder calls run from a CLI harness, with an Avantis web UI fallback on chat-only surfaces.
  • Bitrefill supports wallet-native commerce by default and optional CLI or MCP paths for existing Bitrefill accounts.
  • Morpho uses CLI when shell access exists, otherwise uses Morpho MCP.
  • OpenSea can use its REST API directly or its CLI when shell access exists.
  • Venice supports API-key inference and a Base-wallet x402 path.
  • Virtuals requires installing an MCP server and running the auth flow once per session.

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Using a native plugin

1

Install the skill

Connect mcp.base.org and load the skill in your client. See the Quickstart for Claude, Claude Desktop, ChatGPT, Cursor, Claude Code, and Codex.
2

Prompt the assistant

Just describe what you want. The assistant pulls the relevant plugin spec into context automatically.
Morpho
Find the best USDC vault on Base by APY and deposit 100 USDC
KyberSwap
Swap 100 USDC to ETH on Base at the best available rate
Bitrefill
Buy me a $25 Amazon US gift card with USDC on Base
Flaunch
Launch a memecoin on Base
3

Approve

For onchain actions, the plugin prepares a Base MCP send_calls, swap, send, x402, or sign request. Open the approval link, review the action in Base Account, approve, and prompt the assistant again so it can poll get_request_status until confirmed.
Plugins that use web_request only reach protocols whose hostnames are on the Base MCP allowlist. CLI-only plugins use the harness shell instead of web_request. To call a protocol that isn’t allowlisted, see Build a custom plugin.

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Build your own

Build a custom plugin

Write a markdown spec for a protocol with an HTTP tx-builder, CLI, sibling MCP server, or other Base MCP-compatible flow.