Chainstack · Controlled Vocabulary

Chainstack Vocabulary

Operational and capability vocabulary for the Chainstack multi-chain RPC platform. Maps Chainstack- specific terms to common blockchain-infrastructure dimensions.

15 Terms Updated 2026-05-25
View Vocabulary File View on GitHub

Chainstack Vocabulary is a controlled vocabulary published by Chainstack on the APIs.io network, defining 15 terms.

Defined terms include Request Unit, Global Node, Dedicated Node, Unlimited Node, and Trader Node.

A controlled vocabulary pins the words an API’s schemas, parameters and documentation use to one agreed definition each — the shared language a human or an agent needs to read the API the same way its authors do.

Terms

Request Unit
The atomic billing unit on Chainstack. 1 RU equals 1 full-node JSON-RPC request; 2 RU equals 1 archive-node JSON-RPC request. RPC method type does not affect the cost.
Global Node
Geo-balanced managed RPC node that automatically routes a client request to the lowest-latency Chainstack region.
Dedicated Node
Isolated single-tenant managed node with extended namespaces (debug, txpool, trace) and GraphQL support. Higher SLA, hourly compute charge.
Unlimited Node
Flat-fee tier-based RPS commitment node; no per-request charges within the RPS allocation.
Trader Node
Low-latency mempool-optimized node integrated with bloXroute BDN; designed for MEV, arbitrage, and high-frequency trading workloads.
Yellowstone gRPC
Real-time Solana streaming via the Yellowstone Geyser plugin. Streams accounts, transactions, and slots over gRPC with lower latency than RPC polling.
Warp Transaction
Premium transaction-broadcast service charged per transaction; ships transactions through optimized propagation paths.
MEV Protection
Add-on that routes transactions through sandwich-/frontrun-resistant builders.
Flashblocks
Preconfirmation support on rollup networks (Base 200 ms, Optimism 250 ms) for ultra-low-latency transaction visibility.
Faucet
Chainstack-operated public testnet faucet across Hoodi, Sepolia, BNB Testnet, zkSync Testnet, Scroll Sepolia, and Polygon Amoy.
Compute Unit
Hourly metered compute charge applied to Pro-tier and above Dedicated Nodes (from $0.50 per hour).
Project
Chainstack organizational grouping for related networks and nodes.
Network
Chainstack abstraction over a protocol + chain (e.g. ethereum-mainnet, polygon-amoy). Groups project nodes.
Marketplace
One-click installable apps with unified Chainstack billing.
MCP Server (Chainstack)
Chainstack-hosted MCP server providing agent access to agents page, node deployment, doc search, and faucet operations.

Controlled Vocabulary

Raw ↑ 
vocabulary: API Commons Vocabulary
vocabularyVersion: '0.1'
provider: Chainstack
providerId: chainstack
created: '2026-05-25'
modified: '2026-05-25'
description: Operational and capability vocabulary for the Chainstack multi-chain RPC platform. Maps Chainstack-
  specific terms to common blockchain-infrastructure dimensions.
sources:
  - https://docs.chainstack.com
  - https://chainstack.com/pricing/
  - https://chainstack.com/products/
terms:
  - term: Request Unit
    abbreviation: RU
    definition: The atomic billing unit on Chainstack. 1 RU equals 1 full-node JSON-RPC request; 2 RU equals 1
      archive-node JSON-RPC request. RPC method type does not affect the cost.
    dimension: Billing
  - term: Global Node
    definition: Geo-balanced managed RPC node that automatically routes a client request to the lowest-latency
      Chainstack region.
    dimension: Node Archetype
  - term: Dedicated Node
    definition: Isolated single-tenant managed node with extended namespaces (debug, txpool, trace) and GraphQL
      support. Higher SLA, hourly compute charge.
    dimension: Node Archetype
  - term: Unlimited Node
    definition: Flat-fee tier-based RPS commitment node; no per-request charges within the RPS allocation.
    dimension: Node Archetype
  - term: Trader Node
    definition: Low-latency mempool-optimized node integrated with bloXroute BDN; designed for MEV, arbitrage,
      and high-frequency trading workloads.
    dimension: Node Archetype
  - term: Yellowstone gRPC
    definition: Real-time Solana streaming via the Yellowstone Geyser plugin. Streams accounts, transactions, and
      slots over gRPC with lower latency than RPC polling.
    dimension: Streaming
  - term: Warp Transaction
    definition: Premium transaction-broadcast service charged per transaction; ships transactions through
      optimized propagation paths.
    dimension: Transaction Propagation
  - term: MEV Protection
    definition: Add-on that routes transactions through sandwich-/frontrun-resistant builders.
    dimension: Security
  - term: Flashblocks
    definition: Preconfirmation support on rollup networks (Base 200 ms, Optimism 250 ms) for ultra-low-latency
      transaction visibility.
    dimension: Performance
  - term: Faucet
    definition: Chainstack-operated public testnet faucet across Hoodi, Sepolia, BNB Testnet, zkSync Testnet,
      Scroll Sepolia, and Polygon Amoy.
    dimension: Developer Tools
  - term: Compute Unit
    definition: Hourly metered compute charge applied to Pro-tier and above Dedicated Nodes (from $0.50 per
      hour).
    dimension: Billing
  - term: Project
    definition: Chainstack organizational grouping for related networks and nodes.
    dimension: Organization
  - term: Network
    definition: Chainstack abstraction over a protocol + chain (e.g. ethereum-mainnet, polygon-amoy). Groups
      project nodes.
    dimension: Organization
  - term: Marketplace
    definition: One-click installable apps with unified Chainstack billing.
    dimension: Ecosystem
  - term: MCP Server (Chainstack)
    definition: Chainstack-hosted MCP server providing agent access to agents page, node deployment, doc search,
      and faucet operations.
    dimension: AI Integration
dimensions:
  - name: Billing
    description: How Chainstack meters and charges usage (Request Units, compute hours, transactions, streams).
  - name: Node Archetype
    description: Deployment shape of a managed Chainstack node (Global, Dedicated, Unlimited, Trader).
  - name: Streaming
    description: Real-time data delivery mechanisms (Yellowstone gRPC, WebSocket subscriptions).
  - name: Transaction Propagation
    description: How and where transactions are broadcast to mempools.
  - name: Security
    description: Security and MEV-protection features.
  - name: Performance
    description: Latency and throughput-oriented features.
  - name: Developer Tools
    description: Faucet, MCP server, marketplace, and other developer-facing utilities.
  - name: Organization
    description: Resource hierarchy concepts (Organization, Project, Network, Node).
  - name: Ecosystem
    description: Marketplace and partner integrations.
  - name: AI Integration
    description: MCP and AI-agent-oriented capabilities.