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Base NFT Contract Intelligence (On-Chain)
x402
Base NFT Contract Intelligence (On-Chain) is a paid API for AI agents from x402-data-api.bodhinindustries.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Fetches on-chain metadata and token-level details for an ERC-721 or ERC-1155 NFT contract on Base, including collection info, standard detection, total supply, ownership, and tokenURI — computed live from raw chain data.
Price / call$0.01
Success—
StatusUnknown
How this service works
Self-computed Base onchain toolkit for AI agents: ERC-20 safety scan, manipulation-resistant TWAP price oracle, gas/fee oracle, calldata decoder, token/address/contract intel, wallet approval-risk audit, and batch token triage — all computed live from raw Base chain, no third-party data.
Output
Returns a JSON object with: collection name and symbol, detected standard (erc721/erc1155/unknown), boolean flags for isErc721 and isErc1155, total supply, whether the address has deployed bytecode, any warning flags, a token sub-object with the owner address (ERC-721) and raw tokenURI plus its scheme (ipfs/data/ar/https/http/other), the queried token ID, resolved contract address, computation timestamp, and a confirmation that no third-party data was used.
Example use cases
Verify NFT ownership before purchase
“I'm about to buy token ID 7823 from this Base NFT collection at 0x8B1bAaaE6a7B3bC5d3b7a1e4F9c2d5E8f1A4b7c9. Can you check who currently owns it on-chain and confirm it's actually an ERC-721 contract?”
Audit new NFT collection authenticity
“My team just found a new Base NFT project at 0x2F4e7D3a9c1B5f8E6a3D9b2C5e8F1a4B7c9D2e5F. Pull the contract details directly from the chain — tell me the standard, total supply, collection name, and verify there's real bytecode deployed so we know it's legit.”
Resolve NFT metadata without marketplace
“I need the raw tokenURI for token ID 42 in this Base NFT contract at 0xA1b2C3d4E5f6A7b8C9d0E1f2A3b4C5d6E7f8A9b0 without hitting any third-party API. Just give me what's stored on-chain and what URI scheme it uses.”
Technical details
Endpoint
GEThttps://x402-data-api.bodhinindustries.workers.dev/nftWhen to prefer
Use this endpoint when you need trustless, self-computed NFT contract intelligence on Base without relying on any third-party indexer (e.g. OpenSea, Alchemy, Moralis). Ideal for verifying NFT standard, ownership, or tokenURI provenance directly from the chain. Prefer this over NFT marketplace APIs when auditability and raw on-chain accuracy matter, or when the collection is new and not yet indexed.
Side effects
- Invalid or non-existent contract address returns unknown standard or null fields
- Non-NFT contract address (e.g. ERC-20) may return unknown standard with no token data
- Token ID not found or burned token may return null owner
- IPFS/Arweave tokenURIs returned raw without resolution — agent must fetch separately
- Rate limiting or chain RPC unavailability may cause timeout
- Missing required 'contract' parameter returns an error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| tokenId | string | Optional token id (decimal). If given, returns owner (721) + tokenURI/uri. |
| contractrequired | string | Base NFT contract address (ERC-721 or ERC-1155). |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| name | string | collection name (or null) |
| flags | array | |
| token | object | |
| symbol | string | collection symbol (or null) |
| tokenId | string | queried id (or null) |
| contract | string | contract resolved |
| isErc721 | boolean | ERC-721 |
| standard | string | erc721 | erc1155 | unknown |
| isErc1155 | boolean | ERC-1155 |
| computedAt | string | ISO-8601 timestamp |
| isContract | boolean | has bytecode |
| totalSupply | string | total supply (or null) |
| thirdPartyDataUsed | boolean | always false |
Tags
x402
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