API · /moonriver-api

Moonriver API

healthy 3,404 Subscribers

Real-time on-chain data for Moonriver (chain-id 1285) — the Ethereum-compatible companion network to Moonbeam, deployed on Kusama, with MOVR as its native token. Query live network status (latest block height, network id, client version), fetch any block by height or the latest one (timestamp, transaction count, gas used / limit, base fee, miner), read the current gas price in wei and gwei, and look up the native MOVR balance and transaction count of any address. A keyless, no-account JSON wrapper over the canonical Moonriver JSON-RPC node — decoded from hex into plain decimals and human-readable MOVR so you do not have to. Ideal for explorers, wallets, dashboards, gas estimators and analytics on Moonriver.

#moonriver #movr #kusama #parachain #blockchain #crypto #evm #rpc

api.oanor.com/moonriver-api

Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

/api/moonriver-api/openapi.json

/api/moonriver-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy

Uptime: 100.00%; Server probes · 24h
Avg latency: 142 ms; Server probes · 24h
Subscribers: 3,404; active
Total calls: 0; last 7 days

Full status page → · 5 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

4,000 calls / month
3 requests / second
Hard cap (429 above quota, no overage)
4k calls/month
3 req/sec
All 5 endpoints
No credit card

Basic

€13.50 /month

58,800 calls / month
10 requests / second
Hard cap (429 above quota, no overage)
58.8k calls/month
10 req/sec
Status, blocks, gas & balances
Email support

Pro

€35.20 /month

218,000 calls / month
25 requests / second
Hard cap (429 above quota, no overage)
218k calls/month
25 req/sec
Higher throughput
Priority support

Mega

€75.40 /month

907,000 calls / month
60 requests / second
Hard cap (429 above quota, no overage)
907k calls/month
60 req/sec
Production scale
Dedicated SLA

Built by

PremiumApi

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Polkadot and Kusama OpenGov, live from the public Polkassembly API — no key, nothing cached. OpenGov is a fully on-chain governance system: anyone can submit a referendum on a governance track, it accrues aye / nay / abstain votes weighted by conviction-locked DOT or KSM, and treasury referenda spend on-chain funds to beneficiaries. There is no other Polkadot reader in the marketplace; this opens the governance layer. List the most recent referenda for a network with their governance track, status and proposer. Read a single referendum in full — its aye / nay / support tally converted from Planck to DOT/KSM, its status, track, requested treasury amount and proposer. And surface the referenda that are currently open for voting (Deciding / Confirming / Submitted / Preparing) so wallets and delegates can act. Works for both Polkadot and Kusama through the network parameter. The OpenGov layer for Polkadot/Kusama wallets, governance dashboards, delegates and analytics. Live from api.polkassembly.io.

api.oanor.com/polkadotgov-api

Moonbeam API

Real-time on-chain data for Moonbeam (chain-id 1284) — the Ethereum-compatible smart-contract parachain on Polkadot, fully EVM-compatible with GLMR as its native token. Query live network status (latest block height, network id, client version), fetch any block by height or the latest one (timestamp, transaction count, gas used / limit, base fee, miner), read the current gas price in wei and gwei, and look up the native GLMR balance and transaction count of any address. A keyless, no-account JSON wrapper over the canonical Moonbeam JSON-RPC node — decoded from hex into plain decimals and human-readable GLMR so you do not have to. Ideal for explorers, wallets, dashboards, gas estimators and analytics on Moonbeam.

api.oanor.com/moonbeam-api

Morph Chain API

Real-time on-chain data for Morph (chain-id 2818), a consumer-focused Ethereum Layer-2 built on an optimistic-zkEVM hybrid rollup, where gas is paid in ETH. The status endpoint returns the chain id, network id, latest block height, native symbol and node client version so you can confirm the chain is live and synced. The block endpoint returns a block by decimal or 0x-hex height — or the latest block when no height is given — with its hash, parent hash, timestamp (raw and ISO), transaction count, gas used and limit, base fee and miner. The gas endpoint returns the current gas price in both wei and gwei at the latest block. The balance endpoint returns the native ETH balance (in wei and human-readable units) and the transaction count (nonce) for any 0x address. The meta endpoint documents the chain id, decimals and ecosystem. Reads a live Morph JSON-RPC node directly, so values are current to the latest block. Live, nothing stored. 5 endpoints. This serves native-coin and chain data; for ERC-20 token balances or contract calls use a dedicated token/contract API.

api.oanor.com/morph-api

Passage Chain API

Real-time on-chain data for Passage (chain-id passage-2), a Cosmos-SDK Layer-1 for gaming, the metaverse and NFTs, with PASG as its native coin, secured by delegated proof-of-stake. The status endpoint returns the chain id, latest block height and time, proposer and node application version so you can confirm the chain is live and producing blocks. The validators endpoint returns the full bonded validator set — each moniker, operator address, stake in PASG, commission rate and jailed flag — sorted by stake, plus the total bonded and not-bonded PASG. The supply endpoint returns the total PASG supply (in PASG and base upasg), the bonded amount and the bonded ratio. The governance endpoint returns the most recent on-chain governance proposals with title, status and voting window. The meta endpoint documents the chain, denom and decimals. Reads a live Passage Cosmos-SDK LCD node directly (with mirror fallback), so values are current to the latest block. Live, nothing stored. 5 endpoints. This serves chain-level staking, supply and governance data; for individual NFTs or game assets use a dedicated indexer API.

api.oanor.com/passage-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Moonriver API?

Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Moonriver API with the x-oanor-key header. No credit card needed for the free tier.

What's the rate limit for Moonriver API?

Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.

How much does Moonriver API cost?

Moonriver API has a free tier with 100 calls / month. Paid plans start at €13.50 / month with higher quotas and faster rate limits.

Can I cancel my subscription anytime?

Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.

Is Moonriver API GDPR-compliant?

All requests to Moonriver API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Network 1

Blocks 1

Gas 1

Accounts 1

Meta 1

Pick an endpoint from the list on the left to see its details and try it.

GET /v1/status

Network status (latest block, chain id, client version)

Playground

Custom headers

Language: Client:

GET /v1/block

Block by height (or latest)

Playground

Parameters

Custom headers

Language: Client:

GET /v1/gas

Current gas price (wei + gwei)

Playground

Custom headers

Language: Client:

GET /v1/balance

Native MOVR balance and transaction count of an address

Playground

Parameters

Custom headers

Language: Client:

GET /v1/meta

Service metadata

Playground

Custom headers

Language: Client:

Code snippets

curl https://api.oanor.com/moonriver-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."

const res = await fetch("https://api.oanor.com/moonriver-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();

$ch = curl_init("https://api.oanor.com/moonriver-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);

import requests
r = requests.get(
    "https://api.oanor.com/moonriver-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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Moonriver API

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Related APIs

Polkadot & Kusama Governance (OpenGov) API

Moonbeam API

Morph Chain API

Passage Chain API

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