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Blockscout Multichain Metadata Tags Search
x402
Blockscout Multichain Metadata Tags Search is a paid API for AI agents from api.blockscout.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-15).
Search and retrieve blockchain address tags and metadata across multiple chains by name, type, or chain ID
Price / call$0.012
Success—
StatusUnknown
How this service works
Explore crypto activities with Blockscout's multichain search. Find transactions, addresses, tokens, and dapps across top blockchain networks — your go-to explorer for cross-chain blockchain data
Output
Returns a paginated list of tag objects, each containing a tag name, slug, type, ordinal ranking, and associated blockchain addresses, along with a nextPageParams object containing pageSize and pageToken for fetching subsequent pages.
Example use cases
Identify labeled DeFi protocol addresses
“Search Blockscout's tag metadata for any addresses labeled 'Aave' on Ethereum mainnet (chain ID 1) — I want to see the tag details and the contract addresses associated with that protocol.”
Discover bridge contracts by tag type
“Can you pull blockchain address tags of type 'bridge' from Blockscout's multichain metadata API, limited to 20 results? I'm trying to map out cross-chain bridge contracts.”
Audit tagged exchange addresses on Polygon
“Look up Blockscout's metadata tags for 'Binance' on Polygon (chain ID 137) and give me the list of addresses associated with that label — I need to track exchange-controlled wallets on that network.”
Technical details
Endpoint
GEThttps://api.blockscout.com/services/metadata/api/v1/tags:searchWhen to prefer
Use this endpoint when you need to find curated metadata labels (tags) attached to blockchain addresses across multiple networks — especially when you know a protocol or entity name and want to discover its associated contract addresses. Prefer this over raw transaction search when the goal is entity identification or address labeling rather than transaction history.
Side effects
- Empty items array if no tags match the query name or filters
- Invalid chain_id returns no results or an error response
- Malformed tag_types parameter may be silently ignored or return unfiltered results
- Pagination token mismatch causes repeated or missing results
- Rate limiting or payment failure returns 402 or 429 status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"items": [
{
"tag": {
"meta": "string",
"name": "string",
"slug": "string",
"ordinal": 0,
"tagType": "string"
},
"addresses": [
"string"
]
}
],
"nextPageParams": {
"pageSize": 0,
"pageToken": "string"
}
}
}Tags
x402
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