Overview

Quicknode provides APIs that allow developers, AI agents, and LLM-powered applications to interact with blockchain infrastructure and manage application infrastructure programmatically. These APIs expose blockchain data, real-time event pipelines, storage services, and infrastructure management capabilities.

Quicknode APIs

All Quicknode product APIs are standard HTTP, JSON-RPC, REST, gRPC, and WebSocket endpoints that any client, including AI agents, can call directly:

• Core API: Read blockchain data, submit transactions, and query contract state across all supported networks via RPC, REST, and gRPC.
• Streams API: Create and manage real-time blockchain data pipelines for event indexing, analytics, and monitoring.
• Webhooks API: Configure event-driven notifications triggered by specific onchain activity.
• Key-Value Store API: Read and write application state with lightweight serverless storage.
• Admin API: Programmatically manage endpoints, usage, security, billing, and team permissions.

AI Agent Capabilities

AI agents typically interact with Quicknode APIs using a combination of tools that help them discover documentation, generate correct requests, authenticate access, and manage infrastructure.

Capability	Tool	What it enables
Discover APIs	LLM-Optimized Docs	Find the correct Quicknode documentation and API methods
Learn APIs	Blockchain Skills	Generate correct Quicknode API requests and code
Authenticate	API Key / Agentic Payments (x402, MPP)	Make requests to Quicknode infrastructure
Manage Infrastructure	Quicknode MCP	Manage endpoints and infrastructure using the Admin API

Discover APIs with LLM-Optimized Docs

Quicknode publishes LLM-optimized documentation indexes (llms.txt) across the platform. These indexes allow AI systems to locate relevant documentation for RPC methods, API parameters, infrastructure configuration, product guides, and sample applications.

Agents can reference these indexes to quickly find the correct documentation.

Generate API Requests with Blockchain Skills

Blockchain Skills provides structured knowledge of Quicknode APIs for AI coding agents. Without it, agents may generate outdated RPC methods, use incorrect parameters, or miss Quicknode-specific capabilities.

npx skills add quiknode-labs/blockchain-skills

Skills complements LLM-optimized docs by providing reliable API usage patterns without expanding the context window.

Authenticate Requests to Quicknode APIs

Applications and agents can authenticate requests to Quicknode APIs using either an API key or agentic payment protocols (x402 and MPP).

API Key (Account-Based Access)

API keys authenticate requests associated with a Quicknode account. This is the standard access model for interacting with Quicknode's REST APIs based on pricing plans and provides access to:

• Core API (all blockchain endpoints, including RPC, REST, gRPC, and WebSocket)
• Streams
• Webhooks
• Key-Value Store
• Admin API

Agentic Payments (x402 and MPP)

Quicknode supports two wallet-based payment protocols that provide access to Core API (all blockchain endpoints, including RPC, REST, gRPC, and WebSocket) with no account required. Both handle payment negotiation automatically via their respective client SDKs.

• x402: Open standard by Coinbase. Supports pay-per-request and credit drawdown access patterns.
• MPP: IETF Internet-Draft by Tempo Labs and Stripe. Supports charge and session-based access patterns.

Manage Infrastructure with Quicknode MCP

Quicknode MCP (Model Context Protocol) enables AI assistants to manage Quicknode infrastructure through natural language. MCP operates on top of the Admin API, translating natural language instructions into API operations for creating endpoints, monitoring usage, configuring security, and managing billing.

Agents can perform tasks such as:

• creating endpoints
• monitoring usage
• configuring security settings
• managing teams and billing

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