{
  "id": "ZBH1ExE58wsoodkZ",
  "meta": {
    "instanceId": "a5283507e1917a33cc3ae615b2e7d5ad2c1e50955e6f831272ddd5ab816f3fb6"
  },
  "name": "OpenSea NFT Agent Tool",
  "tags": [],
  "nodes": [
    {
      "id": "33cb5db2-a023-4a6c-a4ad-3f4b3c35ce42",
      "name": "NFT Agent Brain",
      "type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
      "position": [
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      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "yUizd8t0sD5wMYVG",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1.2
    },
    {
      "id": "9d1fa8e4-3acf-4ace-965c-ea5cdfcdc366",
      "name": "NFT Agent Memory",
      "type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
      "position": [
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      ],
      "parameters": {},
      "typeVersion": 1.3
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    {
      "id": "d396bb90-00a6-41da-898d-7815d8d25fe3",
      "name": "OpenSea NFT Agent",
      "type": "@n8n/n8n-nodes-langchain.agent",
      "position": [
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      "parameters": {
        "text": "={{ $json.message }}",
        "options": {
          "systemMessage": "# **ud83dudee0 OpenSea NFT Agent u2013 System Message**  nn## **ud83dudd39 Role & Purpose**nThe **OpenSea NFT Agent** is a powerful AI-driven assistant specialized in retrieving, analyzing, and processing NFT-related data from **OpenSea's API**. It provides insights into:n- User profilesn- NFT collections and contractsn- Individual NFTs, their metadata, traits, and ownershipn- Payment tokens used in NFT transactionsn- Bulk NFT retrievals (by account, collection, or contract)  nnThis agent is designed to interact **directly** with OpenSeau2019s API and follows strict formatting rules to ensure valid requests and accurate responses.nn---nn# **u26a1 Available Tools & How to Use Them**nThe **NFT Agent** has access to **multiple OpenSea API endpoints**, each serving a specific purpose.nn## **1ufe0fu20e3 Get Account**nud83dudccd **Endpoint**: `/api/v2/accounts/{address_or_username}`  nud83dudd39 **Description**: Retrieves an OpenSea user profile, including:n  - Bio  n  - Social media usernames  n  - Profile image  nnud83dudd39 **Required Parameter**:  n  - `address_or_username` u2192 Public blockchain address or OpenSea username  nnud83dudd39 **Example Query**:  n  _"Retrieve OpenSea profile for user `0xA5f49655E6814d9262fb656d92f17D7874d5Ac7E`."_nn---nn## **2ufe0fu20e3 Get Collection**nud83dudccd **Endpoint**: `/api/v2/collections/{collection_slug}`  nud83dudd39 **Description**: Fetches details about a specific NFT collection, including:n  - Collection metadata  n  - Fees  n  - Traits  n  - Social media links  nnud83dudd39 **Required Parameter**:  n  - `collection_slug` u2192 Unique identifier for the collection (found in OpenSea URL)  nnud83dudd39 **Example Query**:  n  _"Retrieve details for the 'Bored Ape Yacht Club' collection."_nn---nn## **3ufe0fu20e3 Get Collections**nud83dudccd **Endpoint**: `/api/v2/collections`  nud83dudd39 **Description**: Fetches a **list of NFT collections** with optional filters.  nnud83dudd39 **Optional Parameters**:  n  - `chain` u2192 Filter by blockchain (**must be a valid chain** from the list below).  n  - `creator_username` u2192 Return collections from a specific OpenSea username.  n  - `include_hidden` u2192 Boolean (`true`/`false`) to include hidden collections.  n  - `limit` u2192 Number of results (1-100, default: 100).  n  - `next` u2192 Cursor for pagination.  n  - `order_by` u2192 Sorting option (`created_date`, `market_cap`, `num_owners`, `one_day_change`, `seven_day_change`, `seven_day_volume`).  nnud83dudd39 **Example Query**:  n  _"List the top 10 NFT collections on Ethereum sorted by market cap."_nn---nn## **4ufe0fu20e3 Get Contract**nud83dudccd **Endpoint**: `/api/v2/chain/{chain}/contract/{address}`  nud83dudd39 **Description**: Retrieves **smart contract details** for an NFT collection.  nnud83dudd39 **Required Parameters**:  n  - `chain` u2192 Blockchain network (**must be valid, see list below**).  n  - `address` u2192 Smart contract address of the NFT collection.  nnud83dudd39 **Example Query**:  n  _"Retrieve contract details for `0xABCDEF...` on Ethereum."_nn---nn## **5ufe0fu20e3 Get NFT**nud83dudccd **Endpoint**: `/api/v2/chain/{chain}/contract/{address}/nfts/{identifier}`  nud83dudd39 **Description**: Retrieves **metadata, traits, ownership, and rarity** of a specific NFT.  nnud83dudd39 **Required Parameters**:  n  - `chain` u2192 Blockchain network (**must be valid, see list below**).  n  - `address` u2192 Smart contract address of the NFT collection.  n  - `identifier` u2192 The **NFT Token ID**.  nnud83dudd39 **Example Query**:  n  _"Retrieve metadata for NFT #1234 from Ethereum contract `0xABCDEF...`."_nn---nn## **6ufe0fu20e3 Get NFTs (by Account)**nud83dudccd **Endpoint**: `/api/v2/chain/{chain}/account/{address}/nfts`  nud83dudd39 **Description**: Retrieves **all NFTs owned** by a given account address.  nnud83dudd39 **Required Parameters**:  n  - `chain` u2192 Blockchain network (**must be valid, see list below**).  n  - `address` u2192 Public blockchain address of the owner.  nnud83dudd39 **Optional Parameters**:  n  - `collection` u2192 Filter by specific NFT collection.  n  - `limit` u2192 Number of NFTs to return (1-200, default: 50).  n  - `next` u2192 Cursor for pagination.  nnud83dudd39 **Example Query**:  n  _"Retrieve all NFTs owned by `0x123...` on Ethereum."_nn---nn## **u26a0ufe0f Important Rules & Restrictions**n### **ud83dudea8 1. Only Allowed Blockchain Inputs**nu2705 **Valid Blockchains for Queries**:n- `amoy`n- `ape_chain`n- `ape_curtis`n- `arbitrum`n- `arbitrum_nova`n- `arbitrum_sepolia`n- `avalanche`n- `avalanche_fuji`n- `b3`n- `b3_sepolia`n- `baobab`n- `base`n- `base_sepolia`n- `bera_chain`n- `blast`n- `blast_sepolia`n- `ethereum`n- `flow`n- `flow_testnet`n- `klaytn`n- **`matic`** _(Use this instead of "polygon")_n- `monad_testnet`n- `mumbai`n- `optimism`n- `optimism_sepolia`n- `sei_testnet`n- `sepolia`n- `shape`n- `solana`n- `soldev`n- `soneium`n- `soneium_minato`n- `unichain`n- `zora`n- `zora_sepolia`nnud83dudea8 **Critical Rule:**n- u274c `"polygon"` **is NOT a valid chain input** and **must be replaced with** `"matic"`.  n- u274c Using an unsupported blockchain **will cause an error**.  n- u2705 Always verify blockchain names before executing a query.nn---nn## **ud83dudccc Example Queries**nu2705 _"Find the OpenSea profile for `0x123...`."_  nu2705 _"List all NFT collections created by `CryptoArtistX`."_  nu2705 _"Retrieve contract details for `0xABC...` on Ethereum."_  nu2705 _"Fetch metadata for NFT #5678 in 'Azuki' collection."_  nu2705 _"List the top 5 NFT collections on Solana, ordered by market cap."_  nn---nn## **u26a0ufe0f Error Handling**nIf an OpenSea API request fails, **check for errors**:n- u2705 `200` u2192 Success  n- u274c `400` u2192 Bad Request (Invalid input format)  n- u274c `404` u2192 Not Found (Incorrect `collection_slug`, `address`, or `identifier`)  n- u274c `500` u2192 Server Error (OpenSea API issue)  nn---nn# **ud83dude80 Conclusion**nThe **OpenSea NFT Agent** is a **specialized AI-powered assistant** designed to retrieve and analyze NFT-related data on OpenSea. Whether you are a **collector, investor, or analyst**, this agent helps you stay **ahead of the market** by providing **real-time, structured, and in-depth insights**.  nn**ud83dudd25 Follow all rules to ensure successful API queries! ud83dudd25**"
        },
        "promptType": "define"
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      "typeVersion": 1.8
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    {
      "id": "c055762a-8fe7-4141-a639-df2372f30060",
      "name": "Workflow Input Trigger",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "position": [
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        -20
      ],
      "parameters": {
        "workflowInputs": {
          "values": [
            {
              "name": "message"
            },
            {
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    {
      "id": "e2b0e848-ae9a-4fce-bf74-11cdebca512e",
      "name": "OpenSea Get Account",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
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      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/accounts/{address_or_username}",
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "toolDescription": "This tool retrieves an OpenSea account profile, including bio, social media usernames, and profile image.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
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        "httpHeaderAuth": {
          "id": "3v99GVMGF4tKP5nM",
          "name": "OpenSea"
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      "typeVersion": 1.1
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    {
      "id": "a343aba5-6a1c-4a19-8054-d80a92b30db0",
      "name": "OpenSea Get Collection",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
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      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/collections/{collection_slug}",
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "toolDescription": "This tool retrieves details of a specific NFT collection from OpenSea, including fees, traits, and links.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
          ]
        }
      },
      "credentials": {
        "httpHeaderAuth": {
          "id": "3v99GVMGF4tKP5nM",
          "name": "OpenSea"
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "c21482cd-bc29-47ee-9913-b200abdfd5bd",
      "name": "OpenSea Get Collections",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
        2120,
        240
      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/collections",
        "sendQuery": true,
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "parametersQuery": {
          "values": [
            {
              "name": "chain",
              "valueProvider": "modelOptional"
            },
            {
              "name": "creator_username",
              "valueProvider": "modelOptional"
            },
            {
              "name": "include_hidden",
              "valueProvider": "modelOptional"
            },
            {
              "name": "limit",
              "valueProvider": "modelOptional"
            },
            {
              "name": "next",
              "valueProvider": "modelOptional"
            },
            {
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              "valueProvider": "modelOptional"
            }
          ]
        },
        "toolDescription": "This tool retrieves a list of OpenSea collections with filtering options for blockchain, creator, visibility, sorting, and pagination.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
          ]
        }
      },
      "credentials": {
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          "id": "3v99GVMGF4tKP5nM",
          "name": "OpenSea"
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "ab41e2bc-8c99-41ae-bfa5-5a94c8068f33",
      "name": "OpenSea Get Contract",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
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        240
      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/chain/{chain}/contract/{address}",
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "toolDescription": "This tool retrieves details of a smart contract from OpenSea based on a given blockchain and contract address.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
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      "name": "OpenSea Get NFT",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
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      "parameters": {
        "url": "https://api.opensea.io/api/v2/chain/{chain}/contract/{address}/nfts/{identifier}",
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "toolDescription": "This tool retrieves metadata, traits, ownership information, and rarity for a single NFT on OpenSea.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
          ]
        }
      },
      "credentials": {
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          "id": "3v99GVMGF4tKP5nM",
          "name": "OpenSea"
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    {
      "id": "c62f092e-353e-4038-a875-d3c86b9e2a3d",
      "name": "OpenSea Get NFTs by Account",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
        2820,
        260
      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/chain/{chain}/account/{address}/nfts",
        "sendQuery": true,
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "parametersQuery": {
          "values": [
            {
              "name": "collection",
              "valueProvider": "modelOptional"
            },
            {
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              "valueProvider": "modelOptional"
            },
            {
              "name": "next",
              "valueProvider": "modelOptional"
            }
          ]
        },
        "toolDescription": "This tool retrieves NFTs owned by a given account address on OpenSea, allowing filtering by collection, blockchain, and pagination options.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
          ]
        }
      },
      "credentials": {
        "httpHeaderAuth": {
          "id": "3v99GVMGF4tKP5nM",
          "name": "OpenSea"
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "4603a4f0-a46b-4ea9-b226-726f9763d823",
      "name": "OpenSea Get NFTs by Collection",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
        3080,
        260
      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/collection/{collection_slug}/nfts",
        "sendQuery": true,
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "parametersQuery": {
          "values": [
            {
              "name": "limit",
              "valueProvider": "modelOptional"
            },
            {
              "name": "next",
              "valueProvider": "modelOptional"
            }
          ]
        },
        "toolDescription": "This tool retrieves multiple NFTs for a given collection on OpenSea, allowing pagination and limit options.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
          ]
        }
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          "name": "OpenSea"
        }
      },
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    },
    {
      "id": "f27c8a55-230e-41a2-ba92-f8facb323e8d",
      "name": "OpenSea Get NFTs by Contract",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
        3320,
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      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/chain/{chain}/contract/{address}/nfts",
        "sendQuery": true,
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "parametersQuery": {
          "values": [
            {
              "name": "limit",
              "valueProvider": "modelOptional"
            },
            {
              "name": "next",
              "valueProvider": "modelOptional"
            }
          ]
        },
        "toolDescription": "This tool retrieves multiple NFTs for a given smart contract on OpenSea, allowing pagination and limit options.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
          ]
        }
      },
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        }
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    {
      "id": "6043b056-339b-4bdd-898e-91e3b5915afd",
      "name": "OpenSea Get Payment Token",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
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        260
      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/chain/{chain}/payment_token/{address}",
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "toolDescription": "This tool retrieves details of a payment token from OpenSea based on a given blockchain and token address.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            }
          ]
        }
      },
      "credentials": {
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          "id": "3v99GVMGF4tKP5nM",
          "name": "OpenSea"
        }
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    },
    {
      "id": "5601cd2a-45f8-4cb6-acd8-02e44b033dcb",
      "name": "OpenSea Get Traits",
      "type": "@n8n/n8n-nodes-langchain.toolHttpRequest",
      "position": [
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        260
      ],
      "parameters": {
        "url": "https://api.opensea.io/api/v2/traits/{collection_slug}",
        "sendHeaders": true,
        "authentication": "genericCredentialType",
        "genericAuthType": "httpHeaderAuth",
        "toolDescription": "This tool retrieves the traits in a given NFT collection from OpenSea.",
        "parametersHeaders": {
          "values": [
            {
              "name": "Accept",
              "value": "application/json",
              "valueProvider": "fieldValue"
            },
            {
              "name": "x-api-key",
              "value": "YOUR_OPENSEA_API_KEY",
              "valueProvider": "fieldValue"
            }
          ]
        }
      },
      "credentials": {
        "httpHeaderAuth": {
          "id": "3v99GVMGF4tKP5nM",
          "name": "OpenSea"
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "86a6c757-bbda-41a9-90d1-1e8af808ae66",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        160,
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      ],
      "parameters": {
        "color": 2,
        "width": 920,
        "height": 1880,
        "content": "# OpenSea NFT Agent Tool (n8n Workflow) Guidenn## ud83dude80 Workflow OverviewnThe **OpenSea NFT Agent Tool** is a specialized **AI-powered assistant** designed to interact with **OpenSea's API** to fetch, analyze, and process NFT-related data. It helps users access **NFT ownership, metadata, traits, collections, contracts, and payment tokens** efficiently.nn### ud83cudfaf **Key Features**:n- Retrieve **OpenSea user profiles** by wallet address or username.n- Fetch **NFT collections**, metadata, contracts, and smart contract details.n- Access **individual NFT details**, including rarity and ownership.n- Track **NFTs owned by an account**, collections, and smart contracts.n- Retrieve **payment tokens** and NFT traits.n- Ensure **API request validity** and structured responses.nn---nn## ud83dudd17 **Nodes & Functions**nn### **1ufe0fu20e3 NFT Agent Brain**n- **Type**: AI Language Model (GPT-4o Mini)n- **Purpose**: Processes NFT-related API requests and interprets OpenSea data queries.nn### **2ufe0fu20e3 NFT Agent Memory**n- **Type**: AI Memory Buffern- **Purpose**: Stores session data to maintain context across multiple queries.nn### **3ufe0fu20e3 OpenSea Get Account**n- **Type**: API Requestn- **Endpoint**: `/api/v2/accounts/{address_or_username}`n- **Function**: Fetches an OpenSea **user profile**, including bio, social links, and profile image.nn### **4ufe0fu20e3 OpenSea Get Collection**n- **Type**: API Requestn- **Endpoint**: `/api/v2/collections/{collection_slug}`n- **Function**: Retrieves **collection metadata**, fees, and traits.nn### **5ufe0fu20e3 OpenSea Get Collections**n- **Type**: API Requestn- **Endpoint**: `/api/v2/collections`n- **Function**: Fetches **a list of NFT collections**, filtered by chain, creator, visibility, or ranking.nn### **6ufe0fu20e3 OpenSea Get Contract**n- **Type**: API Requestn- **Endpoint**: `/api/v2/chain/{chain}/contract/{address}`n- **Function**: Retrieves **NFT collection smart contract details**.nn### **7ufe0fu20e3 OpenSea Get NFT**n- **Type**: API Requestn- **Endpoint**: `/api/v2/chain/{chain}/contract/{address}/nfts/{identifier}`n- **Function**: Fetches **metadata, traits, rarity, and ownership** of a single NFT.nn### **8ufe0fu20e3 OpenSea Get NFTs by Account**n- **Type**: API Requestn- **Endpoint**: `/api/v2/chain/{chain}/account/{address}/nfts`n- **Function**: Retrieves **all NFTs owned** by a wallet address.nn### **9ufe0fu20e3 OpenSea Get NFTs by Collection**n- **Type**: API Requestn- **Endpoint**: `/api/v2/collection/{collection_slug}/nfts`n- **Function**: Fetches **all NFTs in a collection**.nn### **ud83dudd1f OpenSea Get NFTs by Contract**n- **Type**: API Requestn- **Endpoint**: `/api/v2/chain/{chain}/contract/{address}/nfts`n- **Function**: Retrieves **NFTs linked to a smart contract**.nn### **11ufe0fu20e3 OpenSea Get Payment Token**n- **Type**: API Requestn- **Endpoint**: `/api/v2/chain/{chain}/payment_token/{address}`n- **Function**: Fetches details of a **cryptocurrency/token** used for NFT transactions.nn### **12ufe0fu20e3 OpenSea Get Traits**n- **Type**: API Requestn- **Endpoint**: `/api/v2/traits/{collection_slug}`n- **Function**: Retrieves **trait categories and attributes** for a given collection.nn---nn"
      },
      "typeVersion": 1
    },
    {
      "id": "c35f3855-5167-4230-8017-f60297d1dcec",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1540,
        -1240
      ],
      "parameters": {
        "color": 5,
        "width": 1000,
        "height": 1060,
        "content": "## ud83dudccc **How to Use the Workflow**nn### u2705 **Step 1: Input Data**n- Provide the necessary parameters like `collection_slug`, `chain`, `address`, or `identifier`.nn### u2705 **Step 2: Execute API Calls**n- The workflow retrieves and structures **NFT ownership, metadata, and analytics**.nn### u2705 **Step 3: Analyze & Output Results**n- Results can be integrated into dashboards, alerts, or Telegram notifications.nn---nn## u26a0ufe0f **Common API Queries & Examples**nn### **1ufe0fu20e3 Get OpenSea User Profile**n```plaintextnGET https://api.opensea.io/api/v2/accounts/0xA5f49655E6814d9262fb656d92f17D7874d5Ac7En```nn### **2ufe0fu20e3 Get Collection Details**n```plaintextnGET https://api.opensea.io/api/v2/collections/boredapeyachtclubn```nn### **3ufe0fu20e3 Get NFT Metadata**n```plaintextnGET https://api.opensea.io/api/v2/chain/ethereum/contract/0xABCDEF.../nfts/1234n```nn### **4ufe0fu20e3 Get All NFTs Owned by a Wallet**n```plaintextnGET https://api.opensea.io/api/v2/chain/ethereum/account/0x123.../nftsn```nn### **5ufe0fu20e3 Get Payment Token Details**n```plaintextnGET https://api.opensea.io/api/v2/chain/ethereum/payment_token/0xABC...DEFn```nn---nn"
      },
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    },
    {
      "id": "c96fc837-37b2-4351-9175-7b52fba1e38b",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        2940,
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      "parameters": {
        "color": 3,
        "width": 840,
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        "content": "## u26a1 **Error Handling & Troubleshooting**n| **Error Code** | **Description** |n|--------------|----------------|n| `200` | Success |n| `400` | Bad Request (Invalid input) |n| `404` | Not Found (Incorrect slug, address, or identifier) |n| `500` | Server Error (OpenSea API issue) |nn### ud83dudd39 **Fixing Common Errors**n- Ensure correct **wallet address**, **NFT identifier**, or **collection slug**.n- Always use `"matic"` instead of `"polygon"` for chain input.n- If OpenSea API is **down**, retry after some time.nn---nn## ud83dude80 **Connect with Me for Support**nIf you need assistance, custom OpenSea NFT insights, or automation support, feel free to connect with me on LinkedIn:nnud83cudf10 **Don Jayamaha u2013 LinkedIn**  nud83dudd17 [http://linkedin.com/in/donjayamahajr](http://linkedin.com/in/donjayamahajr)"
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