Blockchair
On-chain address, transaction, and block dashboards across major chains.
Blockchair on SearchIn returns dashboard views for crypto addresses, transactions, and blocks. Queries use chain plus the identifier (for example bitcoin 1A1zP1…).
Capabilities
- Address balance, received/spent totals, and first/last seen activity
- Recent transaction hashes for an address
- Transaction fees, totals, and input/output addresses
- Block height or hash with miner guess and included transactions
Data
Blockchair indexes major UTXO and account-based chains. SearchIn v1 supports bitcoin, bitcoin-cash, litecoin, bitcoin-sv, dogecoin, dash, groestlcoin, zcash, ethereum, and ethereum-classic for address, transaction, and block dashboards. A query returns the dashboard for one identifier on one chain.
What you get back
- Balance and activity stats for addresses
- Input/output lists for transactions
- Block header summary with a capped transaction list
UI workflow
Open SearchIn and choose Crypto address, Transaction, or Block.
Select the chain, then enter the address, tx hash, or block height/hash.
Review the dashboard card and pivot related entities on the graph.
Sample queries
| Input type | Query | Notes |
|---|---|---|
crypto_address | bitcoin 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa | Genesis coinbase address |
txid | bitcoin a1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d | Transaction dashboard |
block | bitcoin 0 | Genesis block |
Pricing
crypto_address, txid, block $0.01
Best for
- Checking whether a wallet address has on-chain history before a case note
- Pivoting from a transaction hash to the addresses that funded or received it
- Confirming block height, time, and included txs without leaving SearchIn
How it works & why through OSINTverse
How the request runs
- 1Choose Crypto address, Transaction, or Block and pick a supported chain.
- 2SearchIn calls Blockchair’s dashboard endpoint for that chain and identifier.
- 3Address lookups return balance and recent txs; transaction lookups return fees and IO; block lookups return header fields and a capped tx list.
- 4Related addresses, txs, and blocks become graph nodes you can pivot across Blockchair.
Coverage. Blockchair covers major UTXO and account-based chains including Bitcoin, Bitcoin Cash, Litecoin, Bitcoin SV, Dogecoin, Dash, Groestlcoin, Zcash, Ethereum, and Ethereum Classic. SearchIn v1 exposes address, transaction, and block dashboards on those chains.
Why route Blockchair through OSINTverse
- ·A $0.01 query returns a structured address, tx, or block card — no Blockchair explorer tab for a one-off check.
- ·Addresses and txs become graph nodes so you can walk funding paths inside a case.
- ·The same prepaid wallet covers Blockchair next to breach and domain providers.
| Blockchair directly | Through OSINTverse | |
|---|---|---|
| Getting started | Blockchair exposes a public blockchain API with a daily free request ceiling for unauthenticated use, and optional API keys for higher volume. SearchIn uses the dashboard endpoints and does not require you to hold a Blockchair key for ordinary testing volume. | Sign in, top up from $10, and run Blockchair the same minute — no vendor contract, seat, or sales call. |
| What a query costs | Plan, credit pack, or contract pricing set by the vendor and paid up front. | Pay per query from your prepaid balance — Blockchair starts at $0.01 for crypto address lookups, with the exact price shown before you run it. |
| Failed lookups | Handled under the vendor's own credit and refund policy. | Automatically refunded to your wallet — a search that fails upstream after billing is not charged. |
| Output format | A vendor-specific response shape you normalise and render yourself. | Normalised result panels plus the raw JSON, returned by the same POST /v1/search contract as every other integration. |
| Cross-source work | Copy-paste between vendor dashboards to follow a lead into another dataset. | Results join one case graph, so you can pivot an entity into any of the other 14 integrations in a click. |
| Running it for a team | Per-seat or per-account access, billed and administered per analyst. | One shared team wallet with roles, provider allowlists, enforced MFA, and audit history — no per-seat fee. |
| Volume work | Script the vendor API yourself, including retries, polling, and rate handling. | Bulk search takes up to 50 queries across selected providers in one submission (max 100 jobs), with per-job status and partial-failure handling. |
One wallet, no subscriptions
Top up prepaid USD from $10 and spend it a query at a time across all 15 integrations. No monthly fee, no seat count — and the balance never expires.
Failed searches are refunded
If an upstream provider errors or times out after the charge, the search is marked refunded and the money goes back to your wallet automatically.
One API for every source
The same POST /v1/search contract and x-api-key header work for every integration, so adding a source to your automation is a one-word change.
Cases and pivot graph
Results land in a named case you can reopen. Entities become graph nodes you can pivot from into any other integration without retyping.
Team wallets and controls
Share one balance with roles, provider allowlists, enforced MFA, and audit history — instead of buying a vendor seat for every analyst.
Exports built in
Download any result as JSON, CSV, or PDF, and export the case graph as PNG, SVG, entities CSV, or graph JSON.
Good to know
- You must supply the chain. An address that is valid on more than one network needs the correct slug.
- Long transaction and block lists are capped in the structured panel; raw JSON keeps the upstream payload.
- Blockchair’s free daily ceiling is IP-limited. Heavy production traffic needs a Blockchair API key on the SearchIn backend.
API example
$0.01 per query. Live runs charge the active workspace wallet — the same rates as the dashboard.
Balance
6,829,627,145
bitcoin
Balance USD
$15,293.3
Transactions
1,820
First seen
2009-01-03
Last 2019-10-24
curl -X POST "https://apiv1.osintverse.com/v1/search" \ -H "Content-Type: application/json" \ -H "x-api-key: ov_your_api_key" \ -d '{"provider":"blockchair","input_type":"crypto_address","query":"bitcoin 1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa"}'Invalid provider + input_type pairs return HTTP 422. Confirm combinations with GET /v1/providers or the pricing matrix. Query format is chain identifier.
Run this in the SearchIn UI or create an API key. Full HTTP reference: search workflow. Marketing overview: Blockchair integration.