Teardrop
@teardrop-ai
Teardrop について
Teardrop is the native financial infrastructure layer built specifically for autonomous economic agents. It equips AI agents with Web3 capabilities, secure wallets, real-time market data access, and an audited on-chain billing/payment protocol.
基本情報
設定
以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。
{
"mcpServers": {
"teardrop": {
"url": "https://teardrop.onrender.com/tools/mcp"
}
}
}ツール
25Evaluate a safe arithmetic expression. Supports +,-,*,/,**,%,sqrt,abs,round,floor,ceil,log,sin,cos,tan,pi,e.
Convert between fiat currencies (USD, EUR, GBP, etc.) and crypto assets (BTC, ETH, USDC, SOL, etc.). Returns the converted amount and exchange rate.
Decode a transaction's calldata into a human-readable function name and arguments. Also returns transaction status (1=success, 0=revert), gas used, and block number. Optionally provide an ABI for precise decoding; otherwise uses 4byte.directory. Supports Ethereum mainnet and Base.
Delegate a task to a remote A2A-compliant agent. Discovers the agent's capabilities via its agent card, sends it a message, and returns the result. Use when a task requires specialist capabilities beyond your own tools.
Return the current UTC date and time. Optional strftime format parameter.
Get details for an Ethereum or Base block by number, hash, or 'latest'.
Get the best Uniswap v3 swap quote on Ethereum (chain_id=1) or Base (chain_id=8453) via direct on-chain QuoterV2 calls. Queries all four fee tiers (100/500/3000/10000 bps) in parallel and returns the tier with the highest output amount, along with per-tier breakdown. Inputs are raw uint256 amounts and EIP-55 checksummed addresses; native ETH is not quoted directly — pass the WETH address. Returns no_liquidity=true when no pool exists for the pair. Point-in-time quote at the returned block_number; do not cache.
Aggregate DeFi positions for a wallet across Aave v3, Compound v3, and Uniswap v3 LP on Ethereum (chain_id=1) or Base (chain_id=8453). Returns Aave aggregate account health (collateral, debt, health factor, LTV) with per-reserve breakdown for major assets, Compound v3 Comet market positions (supply, borrow, per-asset collateral, liquidation flag), and Uniswap v3 LP positions by token ID (token pair, fee tier, tick range, liquidity, uncollected fees). Per-protocol failures are isolated — other protocols still return.
Get current EIP-1559 gas fees on Ethereum or Base. Returns base fee, priority fee, and next-block base fee estimate (useful for timing transactions). gas_used_ratio indicates network congestion (>0.5 = busy, >0.9 = very congested). Optional USD estimates include ETH spot price and rough transfer/swap costs. Results cached 10 seconds per chain.
Get current on-chain lending supply/borrow rates for Aave v3 and Compound v3 on Ethereum or Base. Returns per-asset APY snapshots and Compound utilization where available. Useful for protocol-specific stablecoin yield comparisons (e.g., USDC on Aave vs Compound).
Assess DeFi liquidation risk for up to 50 wallets across Aave v3 and Compound v3 on Ethereum (chain_id=1) or Base (chain_id=8453). Returns per-wallet health factor and tiered risk classification (liquidatable, critical, warning, caution, healthy, no_debt) plus an overall_tier aggregate across protocols, and a summary count for alert dashboards. Per-protocol failures are isolated — a Compound RPC error does not blank the Aave result (and vice versa). View-only (eth_call) against hardcoded protocol addresses; duplicate wallet addresses are silently removed.
Audit ERC-20 token allowances for a wallet address. Returns all non-zero approvals across curated DeFi protocol spenders (Uniswap, Aave, Compound, 1inch, 0x, OpenSea). Flags unlimited approvals with risk levels: high=unknown spender, medium=trusted protocol, low=bounded amount. Use before swaps to verify approval state, or after security incidents to detect active exploit vectors. Ethereum mainnet and Base only.
Get current price, 24h change, market cap, and volume for one or more crypto tokens. Accepts ticker symbols (BTC, ETH, LQTY), full token names (Bitcoin, Liquity, Chainlink), or CoinGecko IDs. Unknown symbols are resolved automatically against the full CoinGecko coin list. Supports batch queries up to 50 tokens. Bare 0x contract addresses are not resolvable by CoinGecko and should be treated as unknown. If get_wallet_portfolio already returned price_usd/value_usd for a held token, reuse that value instead of calling get_token_price again.
Get Total Value Locked (TVL) data for a DeFi protocol from DeFiLlama. Returns current TVL in USD, 7-day and 30-day percentage change, and a per-chain breakdown. Set include_historical=True to also retrieve a daily TVL series for trend analysis. You can also batch multiple protocols via protocols=[...]. Supports 3,000+ protocols including Aave, Uniswap, Curve, Compound, Lido, MakerDAO, and more. Use the DeFiLlama slug format: 'aave-v3', 'uniswap-v3', 'curve-dex'. Common aliases such as 'spark-protocol' and 'compound' are auto-corrected.
Get historical price data for crypto tokens over a specified time window (1–365 days). Returns period statistics (start, end, % change, high, low) plus a downsampled daily price series. Use for period comparisons (month-over-month, YTD), trend analysis, and price charts. Prefer over web_search for any time-comparative financial query. Pass stats_only=true when the daily series is unnecessary. price_change_pct is pre-computed and should not be re-derived with calculate.
Get DeFi yield pool rates from DeFiLlama, covering 1,000+ protocols across all chains. Returns pools sorted by APY with TVL, base rate, reward APY, and 7d/30d mean APY context. Filter by protocol (e.g. 'aave-v3', 'compound-v3'), chain (e.g. 'Ethereum', 'Base'), minimum TVL, and minimum APY. Use this to answer questions like 'Where can I get the best USDC yield?', 'What is Aave's current APY on Ethereum?', or 'Compare Aave vs Compound yields'. Returns up to 50 pools. IMPORTANT: Call ONCE per query. The returned `symbol` field contains the underlying tokens (e.g. 'USDC', 'ETH-USDC', 'WBTC'); filter on the client side by inspecting `symbol` rather than re-calling with different arguments. Use `min_apy`, `min_tvl_usd`, and `symbols_any` to prune noise in a single call. Set stable_only=true when you need consistent stablecoin yield screening; this ranks by 30d mean APY first and still returns spot/base/reward components.
Real-time web search via Tavily. Use for current events, fact-checking, and research. Set search_depth='advanced' for complex research queries (higher quality, higher cost). Set topic='news' for recent headlines or 'finance' for market information.
Return word count, character count, sentence count, and paragraph statistics for a given text.
Fetch a web page and extract its main text content. Useful for reading articles, documentation, and web resources. Returns cleaned text, not raw HTML.
Get the native ETH balance of an Ethereum or Base address. NOTE: get_wallet_portfolio already includes the native ETH balance in its holdings list — only call get_eth_balance when you need a standalone ETH balance without a full portfolio scan.
Get the ERC-20 token balance of a wallet, including symbol and decimals.
Get details and receipt for an Ethereum or Base transaction by hash.
Get aggregated token holdings with USD values for a wallet address. Tracks 15+ major tokens on Ethereum (USDC, USDT, DAI, WETH, WBTC, LINK, UNI, AAVE, ARB, OP, LDO, stETH, CRV, SUSHI, MKR) and 9+ on Base. Sorted by USD value. Returns up to 20 holdings. Includes native ETH balance in the holdings list — calling get_eth_balance separately after this is redundant.
Call any view/pure function on a smart contract and return the result. Provide the ABI fragment (JSON array) and function name. State-changing functions (payable/nonpayable) are rejected for safety. Supports historical queries via block_identifier (block number or 'latest').
Resolve an ENS name (e.g. 'vitalik.eth') to an Ethereum address, or pass an Ethereum address for reverse lookup to its primary ENS name. Also returns the avatar text record when available. Mainnet only.
概要
What is Teardrop?
Teardrop is a streaming AI agent API. You send it a message; it reasons using your configured LLM (Anthropic, OpenAI, or Google), optionally calls tools, builds a structured UI component tree, and streams everything back as Server-Sent Events. It implements four open protocols simultaneously: AG‑UI, A2A, MCP, and x402.
How to use Teardrop?
Clone the repo, create a Python virtual environment, install dependencies, copy .env.example to .env and set your LLM API key and Postgres connection string, generate RSA keys, run database migrations, seed default users, then start the API server with uvicorn app:app --reload. Alternatively, deploy via Docker Compose or Render.
Key features of Teardrop
- Streaming SSE responses with structured UI component trees
- Supports Anthropic, OpenAI, and Google as LLM providers
- Implements AG‑UI, A2A, MCP, and x402 protocols
- Per‑request USDC payments on Base (or prepaid credits)
- Three authentication methods: client credentials, email, SIWE
- Custom per‑org webhook tools and persistent memory
Use cases of Teardrop
- Build an AI agent that shows real‑time UI components alongside reasoning
- Monetize an AI agent API with per‑request USDC micropayments
- Create a multi‑turn conversational agent with tool calling and memory
- Deploy an agent that is discoverable via A2A and serves tools via MCP
FAQ from Teardrop
What LLM providers are supported?
Teardrop supports Anthropic, OpenAI, and Google as LLM providers. Set the AGENT_PROVIDER environment variable and provide the corresponding API key.
What database does Teardrop require?
A Postgres database is required. You can run one locally via Docker or use a hosted service like Neon.
How does billing work?
When billing is enabled, Teardrop uses the x402 payment protocol. SIWE‑authenticated users pay per‑request in USDC on Base. Machine and email users draw from an org’s prepaid credit balance.
What authentication methods are available?
Three methods: client credentials (machine‑to‑machine), email + password, and SIWE (Sign‑In with Ethereum). SIWE is the only method that enables on‑chain x402 payments.
Can I run Teardrop locally with Docker?
Yes. Use docker-compose up --build to start Postgres and the Teardrop API. Migrations run automatically and keys are generated at build time.
マーケットプレイスの他のコンテンツ
GitLab
modelcontextprotocolModel Context Protocol Servers
Sentry
modelcontextprotocolModel Context Protocol Servers
Core Philosophy: Connect, Unify, Respond
mindsdbDelegate anything. It comes back done.
1Panel
1Panel-dev🔥 1Panel is a modern, open-source VPS control panel — and the only one with native AI agent support. Run Ollama models, deploy OpenClaw agents, and manage your entire server stack from one clean web interface.
Git
modelcontextprotocolModel Context Protocol Servers
コメント