api.teardrop.dev
Teardrop get_dex_quote: 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 a...
TradingLiveeip155:8453Exactvia cdp
Calls · 30d
0
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 22 snapshots so far.
$0.57
Verified settled volume
70 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0050
Listed price
As published in the catalog. Always read the live 402 before paying.
0
Calls · 30d
Upstream's own call count for this endpoint, not ours.
0
Unique payers · 30d
Last called 2026-10-05 01:30Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xF2Eec9De86274913F85A8aA6427Ad65a9B0bC90aThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xF2Eec9De86274913F85A8aA6427Ad65a9B0bC90a",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://api.teardrop.dev/tools/mcp",
"tags": [
"crypto",
"defi",
"onchain data",
"wallet analytics",
"ai agents"
],
"iconUrl": "https://teardrop.dev/teardrop.png",
"mimeType": "application/json",
"description": "Teardrop MCP gateway: pay-per-call tools for AI agents covering token prices, DeFi yields and lending, wallet portfolios and approvals, onchain transactions, DEX quotes, and web search. Call via MCP tools/call over streamable HTTP; settle with x402 USDC on Base.",
"serviceName": "Teardrop"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"id": 1,
"method": "tools/call",
"params": {
"name": "get_token_price",
"arguments": {
"tokens": [
"ETH"
]
}
},
"jsonrpc": "2.0"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"id": 1,
"result": {
"content": [
{
"text": "{\"vs_currency\":\"usd\",\"prices\":[{\"id\":\"ethereum\",\"symbol\":\"eth\",\"price\":3500.0,\"market_cap\":null,\"volume_24h\":null,\"change_24h_pct\":null}]}",
"type": "text"
}
],
"isError": false
},
"jsonrpc": "2.0"
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"method",
"bodyType",
"body"
],
"properties": {
"body": {
"type": "object",
"required": [
"jsonrpc",
"id",
"method",
"params"
],
"properties": {
"id": {
"oneOf": [
{
"type": "integer"
},
{
"type": "string"
}
]
},
"method": {
"type": "string",
"const": "tools/call"
},
"params": {
"type": "object",
"required": [
"name",
"arguments"
],
"properties": {
"name": {
"type": "string",
"minLength": 1
},
"arguments": {
"type": "object"
}
},
"additionalProperties": false
},
"jsonrpc": {
"type": "string",
"const": "2.0"
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
}
},
"x402Version": 2
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.005USDC≈ $0.005 USD
on Base · exact scheme
Pay 0.005 USDC on Base to 0xF2Ee…bC90a. The signed payment is good for 5 minutes.
- Paid to
- 0xF2Ee…bC90a
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 5000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xF2Eec9De86274913F85A8aA6427Ad65a9B0bC90a",
"amount": "5000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "mcp",
"toolName": "get_dex_quote",
"transport": "streamable-http",
"description": "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_numbe…",
"inputSchema": {
"type": "object",
"title": "GetDexQuoteInput",
"required": [
"token_in",
"token_out",
"amount_in"
],
"properties": {
"chain_id": {
"type": "integer",
"title": "Chain Id",
"default": 1,
"description": "1 = Ethereum mainnet, 8453 = Base mainnet. Other chains unsupported."
},
"token_in": {
"type": "string",
"title": "Token In",
"description": "EIP-55 checksummed address of the token being sold. For native ETH, pass the WETH address (Ethereum: 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2; Base: 0x4200000000000000000000000000000000000006)."
},
"amount_in": {
"type": "string",
"title": "Amount In",
"description": "Input amount in RAW uint256 units (e.g. '1000000' for 1 USDC, '1000000000000000000' for 1 WETH). Must be > 0 and < 2^128. Common token decimals: WETH/ETH/DAI/wstETH/cbETH/weETH 18, WBTC/cbBTC 8, USDC/USDT 6. Do not call read_contract to look up decimals — use these values directly."
},
"token_out": {
"type": "string",
"title": "Token Out",
"description": "EIP-55 checksummed address of the token being bought."
}
}
}
},
"output": {
"type": "json",
"example": {
"chain_id": 0,
"token_in": "",
"amount_in": "",
"token_out": "",
"amount_out": "",
"block_number": 0,
"no_liquidity": false,
"fee_tier_used": 0,
"effective_rate": "",
"quotes_per_tier": [],
"amount_out_human": "",
"amount_in_decimals": 0,
"amount_out_decimals": 0
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"toolName",
"inputSchema"
],
"properties": {
"type": {
"type": "string",
"const": "mcp"
},
"toolName": {
"type": "string"
},
"transport": {
"enum": [
"streamable-http",
"sse"
],
"type": "string"
},
"description": {
"type": "string"
},
"inputSchema": {
"type": "object"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"chain_id",
"token_in",
"token_out",
"amount_in",
"amount_in_decimals",
"amount_out",
"amount_out_decimals",
"amount_out_human",
"effective_rate",
"fee_tier_used",
"quotes_per_tier",
"no_liquidity",
"block_number"
],
"properties": {
"chain_id": {
"type": "integer"
},
"token_in": {
"type": "string"
},
"amount_in": {
"type": "string"
},
"token_out": {
"type": "string"
},
"amount_out": {
"type": "string"
},
"block_number": {
"type": "integer"
},
"no_liquidity": {
"type": "boolean"
},
"fee_tier_used": {
"anyOf": [
{
"type": "integer"
},
{
"type": "null"
}
]
},
"effective_rate": {
"type": "string"
},
"quotes_per_tier": {
"type": "array",
"items": {
"type": "object",
"required": [
"fee_tier",
"success"
],
"properties": {
"error": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
},
"success": {
"type": "boolean"
},
"fee_tier": {
"type": "integer"
},
"amount_out": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
},
"gas_estimate": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
},
"sqrt_price_x96_after": {
"anyOf": [
{
"type": "string"
},
{
"type": "null"
}
],
"default": null
}
}
}
},
"amount_out_human": {
"type": "string"
},
"amount_in_decimals": {
"type": "integer"
},
"amount_out_decimals": {
"type": "integer"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-10-08 00:42Z
- Last indexed by Roundhouse
- 2026-10-26 20:40Z
- Last enriched (probe, favicon, geo)
- 2026-10-05 16:15Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.
GET api.roundhouseai.io/v0/endpoints
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 22 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service api.teardrop.dev and tell me whether it is worth paying: what a call costs, whether the endpoint answered when last probed, and what its payment record actually shows. curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.teardrop.dev' curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>' Then call it: read the price from the live 402 at https://api.teardrop.dev/tools/mcp#get_dex_quote, never from a cached figure, and pay with an x402 client. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.