Block402
Pay per use
not read yet
Use
- For
- AI agents and developers needing pay-per-request Ethereum and Bitcoin mainnet blockchain data
- Price
- Pay per usepricing page, read Oct 26, 2026
- Runs as
- API
- Used for
- check wallet balances and block heights
- look up transaction receipts and blocks
- run bounded smart contract calls
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsblock402.xyz ↗
Pay per use
- MCP serverxyz.block402/block402verified in the MCP registry
- Stateanswers, 7 toolschecked 2026-10-26
- Address to connectapi.block402.xyz/mcp
- OpenAPI spec1 pathsthe spec ↗
- API docsblock402.xyz/docs/api.mdthe vendor's page ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Ethereum (ETH) Blockchain Explorer
Lets users browse Ethereum blocks, transactions, contracts and token transfers, with gas and price tracking.
24.7kActive - #2
Powerful multichain search by Blockscout
Queries transactions, addresses, tokens and contracts on many EVM chains through a single search box.
1.8kActive - #3
SentioMCP · sign-in
Indexes blockchain events into queryable data and provides contract debugging, analytics, alerts and transaction simulation.
901ActiveFrom $0.02 per use - #4
Bidda AIMCP · open
Serves regulations as compliance nodes with plain-English summaries, step-by-step workflows, primary legal citations and SHA-256 hashes via API.
336ActiveFrom $49/mo - #5
CromaMCP · sign-in
Serves government court, registry, sanctions and procurement records from eight countries through one API for AI assistants.
62ActiveFrom $20/mo - #6
DeFadeMCP · open
Scores memecoin contracts for rug pull risk by analyzing holder, bundle, sniper and deployer wallet behaviour.
7ActiveFrom $24/mo
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use Block402 for?
Sign in to leave a noteWhat is Block402?
Reads Ethereum and Bitcoin mainnet balances, blocks, transactions and contract state over a pay-per-request JSON-RPC API. It is listed in the Atlas under Legal.
Who is Block402 for?
AI agents and developers needing pay-per-request Ethereum and Bitcoin mainnet blockchain data
How much does Block402 cost?
Block402 charges per use, per its pricing page on 2026-10-26.
Is Block402 free?
No. Its pricing page showed no free plan on 2026-10-26.
Do people use Block402?
Little sign of use.
What are alternatives to Block402?
In Legal, by use: Ethereum (ETH) Blockchain Explorer, Powerful multichain search by Blockscout, Sentio, Bidda AI, Croma, DeFade.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
Cookies
Before we count this visit
Analytics and ad measurement tell us which pages and which of our ads do their job: Google Analytics and Google Ads, the Meta pixel, Yandex Metrica, and one first-party id of our own. Nothing is stored until you answer, and declining changes nothing about the site.