Chainstack
Chainstack is a managed multi-chain RPC and node infrastructure platform supporting 70+ blockchain protocols including Ethereum, Solana, Bitcoin, BNB Smart Chain, Polygon, Arbitrum, Optimism, Base, Avalanche, TON, TRON, Starknet, zkSync Era, Hyperliquid, Monad, and many more. The platform exposes a REST Platform API for organization, project, network, and node lifecycle management, JSON-RPC endpoints for every supported chain, a Faucet API for testnet funding, real- time Solana streaming via Yellowstone gRPC, low-latency Trader Nodes via bloXroute, archive data with debug and trace namespaces, MEV protection, Flashblocks preconfirmations, and a Chainstack MCP server for AI agents.
Chainstack publishes 32 APIs on the APIs.io network, including Faucet API, Account Info API, Accounts Info API, and 29 more. Tagged areas include Blockchain, Multi-Chain, RPC, Node Infrastructure, and Web3.
The Chainstack catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 3 Spectral governance rulesets.
Chainstack’s developer surface includes authentication, GitHub presence, YouTube channel, developer portal, documentation, pricing, support, and 39 more developer resources.
Kin Score
APIs 32
Individual APIs this provider publishes, each with its own machine-readable definition.
Chainstack Faucet API
Public Chainstack-operated testnet faucet for Hoodi, Sepolia, BNB Testnet, zkSync Testnet, Scroll Sepolia, and Polygon Amoy. JWT-authenticated POST /v1/faucet/{chain} request en...
Chainstack Account Info API
The Account Info API from Chainstack — 6 operation(s) for account info.
Chainstack Accounts Info API
The Accounts Info API from Chainstack — 6 operation(s) for accounts info.
Chainstack Blocks Info API
The Blocks Info API from Chainstack — 13 operation(s) for blocks info.
Chainstack Chain Info API
The Chain Info API from Chainstack — 5 operation(s) for chain info.
Chainstack Client Info API
The Client Info API from Chainstack — 5 operation(s) for client info.
Chainstack Configuration Info API
The Configuration Info API from Chainstack — 5 operation(s) for configuration info.
Chainstack Debug And Trace API
The Debug And Trace API from Chainstack — 37 operation(s) for debug and trace.
Chainstack Debug API
The Debug API from Chainstack — 3 operation(s) for debug.
Chainstack Deployment Options API
The Deployment Options API from Chainstack — 1 operation(s) for deployment options.
Chainstack Events API
The Events API from Chainstack — 1 operation(s) for events.
Chainstack Execute Transactions API
The Execute Transactions API from Chainstack — 6 operation(s) for execute transactions.
Chainstack Filter Handling API
The Filter Handling API from Chainstack — 5 operation(s) for filter handling.
Chainstack Gas Data API
The Gas Data API from Chainstack — 5 operation(s) for gas data.
Chainstack General API
The General API from Chainstack — 520 operation(s) for general.
Chainstack History API
The History API from Chainstack — 1 operation(s) for history.
Chainstack Logs And Events API
The Logs And Events API from Chainstack — 3 operation(s) for logs and events.
Chainstack Network API
The Network API from Chainstack — 2 operation(s) for network.
Chainstack Node API
The Node API from Chainstack — 2 operation(s) for node.
Chainstack Node V2 API
The Node V2 API from Chainstack — 2 operation(s) for node v2.
Chainstack Organization API
The Organization API from Chainstack — 1 operation(s) for organization.
Chainstack Project API
The Project API from Chainstack — 3 operation(s) for project.
Chainstack Project V2 API
The Project V2 API from Chainstack — 2 operation(s) for project v2.
Chainstack State API
The State API from Chainstack — 10 operation(s) for state.
Chainstack Tempo Specific API
The Tempo Specific API from Chainstack — 2 operation(s) for tempo specific.
Chainstack Transaction Info API
The Transaction Info API from Chainstack — 14 operation(s) for transaction info.
Chainstack Transactions Info API
The Transactions Info API from Chainstack — 5 operation(s) for transactions info.
Chainstack Txpool API
The Txpool API from Chainstack — 2 operation(s) for txpool.
Chainstack V2 API
The V2 API from Chainstack — 29 operation(s) for v2.
Chainstack V3 API
The V3 API from Chainstack — 30 operation(s) for v3.
Chainstack Validatiors Info API
The Validatiors Info API from Chainstack — 12 operation(s) for validatiors info.
Chainstack Zkevm Methods API
The Zkevm Methods API from Chainstack — 8 operation(s) for zkevm methods.
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Postman Collections 32
Ready-to-run Postman collections for exercising this provider's APIs.
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Open Collections 26
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Chainstack Arbitrum Node API
OPEN COLLECTIONChainstack Aurora Node API
OPEN COLLECTIONChainstack Avalanche Node API
OPEN COLLECTIONChainstack Base Node API
OPEN COLLECTIONChainstack Bitcoin Node API
OPEN COLLECTIONChainstack BNB Smart Chain Node API
OPEN COLLECTIONChainstack Cronos Node API
OPEN COLLECTIONChainstack Ethereum Beacon Chain API
OPEN COLLECTIONChainstack Ethereum Node API
OPEN COLLECTIONChainstack Fantom Node API
OPEN COLLECTIONChainstack Faucet API
OPEN COLLECTIONChainstack Gnosis Node API
OPEN COLLECTIONChainstack Hyperliquid Node API
OPEN COLLECTIONChainstack Monad Node API
OPEN COLLECTIONChainstack Optimism Node API
OPEN COLLECTIONChainstack Plasma Node API
OPEN COLLECTION💙 CHAINSTACK PLATFORM API
OPEN COLLECTIONChainstack Polygon Node API
OPEN COLLECTIONChainstack Polygon zkEVM Node API
OPEN COLLECTIONChainstack Ronin Node API
OPEN COLLECTIONChainstack Solana Node API
OPEN COLLECTIONChainstack Starknet Node API
OPEN COLLECTIONChainstack Tempo Node API
OPEN COLLECTIONChainstack TON Node API
OPEN COLLECTIONChainstack TRON Node API
OPEN COLLECTIONChainstack zkSync Era Node API
OPEN COLLECTIONScroll for all 26
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Chainstack Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Chainstack Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Chainstack RPC WebSocket APIs
AsyncAPI 2.6 specification for Chainstack's JSON-RPC WebSocket (WSS) subscription APIs. Chainstack-managed nodes expose a persistent WebSocket endpoint per node that accepts JSO...
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Chainstack Context
JSON-LDSpectral Rules 3
Spectral governance rulesets for linting and validating these APIs.
JSON Schema 2
Standalone JSON Schema definitions for this provider's data models.
ChainstackJsonRpcEnvelope
JSON SCHEMAChainstackNode
JSON SCHEMASecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 1
Portal, sign-up, and the first successful call
Documentation 5
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 2
Pagination, idempotency, versioning, errors, and events
Build 8
SDKs, sample code, and the tooling you integrate with
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Access & Security 4
Authentication, authorization, and security posture
Learn 1
Tutorials, courses, talks, and written guidance
Operate 5
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 11
Properties that don't map to a standard resource type
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