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Prom

Prom

EVM Layer 1 / Chain ID 227

Prom is a EVM-compatible blockchain network indexed by the SQD Network. Access real-time and historical data including blocks, transactions, and event logs through the SQD Portal API.

Quick Facts
Networks 1
Runtime EVM
Chain ID 227
Real-time No
Data tables 5
Category Layer 1
Networks
1
Data tables
5
Chain ID
227
Runtime
EVM
Coverage
Archive
Start block
0 (genesis)
License
Open-source SDK

Networks

prom-mainnet
EVM mainnet 5 tables

Prom on SQD

Validated at ingestion

Prom data is validated by SQD Network workers before it reaches the Portal. Validation is performed across the network rather than by a single ingestion node, so a faulty upstream source can't poison the dataset.

Decoded, schema-typed

5 Prom tables (blocks, transactions, logs & traces), decoded and schema-typed, ready to query. Your indexer queries the data directly without writing RLP parsers.

Full historical archive

SQD's Prom archive covers historical state in one endpoint. Real-time on the roadmap.

Open-source SDK

Both the Squid SDK and the Pipes SDK are open-source. Connectors for Postgres, ClickHouse, MongoDB, SQLite and Parquet, plus a custom-target hook. Run your Prom indexer on your own infrastructure or on SQD Cloud.

Build with Prom data

Common production patterns teams build with SQD on Prom.

DeFi & Trading

Index swaps, liquidations, and positions on Prom in real time.

Analytics

Build dashboards and metrics from full Prom historical state.

AI Agents

Give agents structured, decoded Prom data with the MCP server.

Wallets & Payments

Power balance, transfer, and history views for Prom wallets.

Compliance & KYT

Validated Prom data for transaction monitoring and audits.

Stablecoins

Track every mint, burn, and transfer of Prom stablecoins.

Real-World Assets

Auditable Prom data for tokenized RWA issuance and transfers.

Available Data

blocks

Block headers with timestamps, gas usage, miner info, and consensus data.

transactions

All onchain transactions with sender, receiver, value, gas, and input data.

logs

Event logs emitted by smart contracts, the primary source for tracking DeFi, NFT, and token activity.

traces

Internal transactions and call traces showing the full execution path of each transaction.

state_diffs

State changes per transaction, storage slot modifications, balance changes, and nonce updates.

Stream Prom data in two lines

Example below uses the public Prom endpoint, no API key required for development. For full SDK reference, see the documentation.

1curl --compressed -X POST \
2 'https://portal.sqd.dev/datasets/prom-mainnet/stream' \
3 -H 'Content-Type: application/json' \
4 -d '{
5 "type": "evm",
6 "fromBlock": 0,
7 "toBlock": 100,
8 "fields": {
9 "block": {"number":true,"timestamp":true},
10 "transaction": {
11 "hash": true,
12 "from": true,
13 "to": true,
14 "value": true
15 }
16 },
17 "transactions": [{}]
18 }'
prom-mainnet/stream
EVM · blocks 0–100

Frequently asked questions

How does SQD compare to running a Prom RPC node?
A Prom RPC node serves raw bytes for recent state and rate-limits per request. SQD's Portal pre-indexes the full Prom archive into decoded, schema-typed tables (blocks, transactions, logs & traces) and serves them as a single streaming endpoint. You skip the multi-day node sync, archive storage, monitoring, and scale-out work, and pay only for the data you stream.
What does SQD cost for Prom data?
The public Portal endpoint at portal.sqd.dev/datasets/prom-mainnet is free for development with no API key. Production workloads run on the SQD Portal with tiered pricing based on the network and request volume. See the pricing page for current tiers, or contact us for an enterprise quote.
How is SQD's Prom data different from a block explorer like Etherscan?
Block explorers are read-optimized for human browsing of single blocks or addresses. SQD is built for programmatic indexing: stream millions of Prom blocks into your own database, run analytical queries across the full history, and back production applications with decoded data. Output is structured tables, not HTML pages, and there are no per-call rate limits geared toward UI traffic. If you wanted to build your own Prom explorer, the SQD Portal is what you would back it with.
Can I self-host SQD's Prom indexer?
Yes. Both the Squid SDK and the Pipes SDK are open-source. You can run a Prom indexer on your own infrastructure pointing at the SQD Network or the Portal. SQD Cloud also offers managed hosting if you'd rather not operate it yourself.
Can I export Prom data to a data warehouse or pipeline?
Yes. The Pipes SDK streams Prom data from the Portal into Postgres, ClickHouse, MongoDB, SQLite, Parquet, or a custom target you implement. See the SDK docs for the connector reference.
Does SQD validate Prom data?
Every Prom block ingested into SQD is validated by the SQD Network workers (hash chain, parent reference, and where applicable finality) before it reaches the Portal. Validation is performed across the network, not by a single ingestion process, so a faulty upstream node can't poison the dataset.
Does SQD support real-time Prom data?
Prom historical data is available through the Portal archive. Real-time streaming for Prom is on the roadmap, contact us to flag your use case for prioritization.

See other chains supported by SQD

0g Testnet ADI Chain Alpen Testnet Arbitrum Blueberry Arthera Avalanche B3 Beam

Start building with Prom

Access Prom data through the SQD Portal, free tier available.

Try the Portal Read Docs