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Api Endpoint

defiexec-preview

Lightweight yield preview for Base without calldata: give protocol, asset or vault, raw amount and action and get the expected shares or assets and the safety flags (paused/frozen/cap, empty-vault inflation risk). A cheap check before you build the full transaction.

Open interactive test console

Offering

Provider
payai.agentstools.dev
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://payai.agentstools.dev/yield/preview
MIME type
application/json
First seen
2026-10-16T02:00:30.940Z
Last seen
Tags
yield, DeFi, preview, Base, aave, compound, erc4626, vault, lending, on-chain, non-custodial

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "AytHnvc6bZx1ALTy7b5Px7hcavoSYszG9aeKvDcZ8R1u"
  }
]

Observed health

Status
Healthy
Latest latency
376 ms
Average latency
1230 ms
HTTP status
402
Last checked
Reachability
100% over 11 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "protocol": {
          "type": "string",
          "enum": [
            "aave-v3",
            "compound-v3",
            "erc4626"
          ],
          "description": "Yield protocol: aave-v3, compound-v3 or erc4626."
        },
        "asset": {
          "type": "string",
          "description": "For aave-v3/compound-v3: the asset symbol (USDC, WETH, ...) or a 0x ERC-20 address. Compound III earns only on its base asset."
        },
        "vault": {
          "type": "string",
          "description": "For erc4626: the vault 0x address (ANY Base ERC-4626) or a seed slug. Resolved on-chain."
        },
        "amount": {
          "type": "string",
          "description": "Raw atomic units. deposit: underlying assets. redeem: aave/comet = underlying (or 'max'); erc4626 = shares (or 'max')."
        },
        "action": {
          "type": "string",
          "enum": [
            "deposit",
            "redeem"
          ],
          "description": "deposit (supply) or redeem (withdraw). Default deposit."
        }
      },
      "required": [
        "protocol",
        "amount"
      ]
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "input"
  ],
  "properties": {
    "input": {
      "type": "object",
      "required": [
        "type",
        "method"
      ],
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ],
          "type": "string"
        },
        "queryParams": {
          "type": "object",
          "required": [
            "protocol",
            "amount"
          ],
          "properties": {
            "asset": {
              "type": "string",
              "description": "For aave-v3/compound-v3: the asset symbol (USDC, WETH, ...) or a 0x ERC-20 address. Compound III earns only on its base asset."
            },
            "vault": {
              "type": "string",
              "description": "For erc4626: the vault 0x address (ANY Base ERC-4626) or a seed slug. Resolved on-chain."
            },
            "action": {
              "enum": [
                "deposit",
                "redeem"
              ],
              "type": "string",
              "description": "deposit (supply) or redeem (withdraw). Default deposit."
            },
            "amount": {
              "type": "string",
              "description": "Raw atomic units. deposit: underlying assets. redeem: aave/comet = underlying (or 'max'); erc4626 = shares (or 'max')."
            },
            "protocol": {
              "enum": [
                "aave-v3",
                "compound-v3",
                "erc4626"
              ],
              "type": "string",
              "description": "Yield protocol: aave-v3, compound-v3 or erc4626."
            }
          }
        }
      },
      "additionalProperties": false
    },
    "output": {
      "type": "object",
      "required": [
        "type"
      ],
      "properties": {
        "type": {
          "type": "string"
        },
        "example": {
          "type": "object"
        }
      }
    }
  }
}