A2A Agent Card · QuickNode

Quicknode Blockchain Agent

Multi-chain blockchain infrastructure agent. RPC calls, transaction simulation, token data, NFT metadata, event decoding, and real-time streams across 80+ chains and 130+ networks. Autonomous account and endpoint provisioning via x402 or MPP, plus pay-per-request RPC via x402 or API key.

Open the live agent card → Agent endpoint QuickNode provider profile
⚠ Agent card, not A2A. QuickNode serves a machine-readable agent manifest at the A2A discovery path, but it fails a structural check in the A2A 1.0.0 AgentCard object. It is an agent card in spirit rather than in schema — useful for discovery, but an A2A client cannot assume it will parse.
Provider: QuickNode Conformance: Flavored Protocol: Transport: Version: 1.0.0 Host: quicknode.com Skills: 8
Discovery

An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.

https://www.quicknode.com/.well-known/agent-card.json
Interfaces
https://mcp.quicknode.com/mcp · transport · protocol non-standard supportedInterfaces
https://api.quicknode.com · transport · protocol non-standard supportedInterfaces
https://x402.quicknode.com · transport · protocol non-standard supportedInterfaces
https://mpp.quicknode.com · transport · protocol non-standard supportedInterfaces
https://www.quicknode.com/openapi.json · transport · protocol non-standard supportedInterfaces
Skills (8)

Autonomous Endpoint Provisioning provision_endpoint

Create a Quicknode subscription and RPC endpoint without human signup. Two-step flow: POST https://www.quicknode.com/api/v1/agent/subscriptions (pay via x402 or MPP; POST with no body to receive a 402 listing plans and payment methods), then POST https://api.quicknode.com/v0/endpoints with the returned QN_* key to create a dedicated RPC endpoint on any of 80+ chains. Walkthrough: https://www.quicknode.com/agents/create-endpoint.md

provisioningsubscriptionendpointx402mppadmin-apiautonomous

Blockchain RPC Call rpc_call

Execute JSON-RPC calls on any supported chain. eth_call, eth_getBalance, eth_getTransactionReceipt, getAccountInfo, etc.

rpcblockchainethereumsolanabasemulti-chain

Transaction Simulation tx_simulation

Simulate transactions before broadcasting. Returns gas estimates, revert reasons, state changes, and asset transfers.

simulationgastransactiondefisafety

Token & Wallet Data token_lookup

Fetch token balances, metadata, prices, holders, and transfer history for any wallet across supported chains.

tokenswalletbalanceserc20splportfolio

NFT Data & Metadata nft_metadata

Retrieve NFT collections, ownership, metadata, traits, and transfer history.

nftmetadatacollectionsownership

Event & Log Decoding event_decoding

Fetch and decode smart contract events and logs. Filter by contract, topic, or block range.

eventslogsdecodesmart-contractsindexing

Real-time Blockchain Streams streams_subscribe

Subscribe to real-time blockchain data streams. New blocks, pending transactions, contract events, and custom filters.

streamsrealtimewebsocketmempoolmonitoring

Blockchain SQL Explorer sql_query

Query indexed blockchain data using SQL. Blocks, transactions, logs, token transfers, and decoded contract data.

sqlanalyticsqueryindexed-dataexplorer
Documentation
https://www.quicknode.com/docs
Evidence. Fetched 2026-07-28 from https://www.quicknode.com/.well-known/agent-card.json, HTTP 200. The body was saved verbatim and is the sole source for everything on this page — no field is inferred. View the captured card. Providers change what they serve; if this card has moved or changed shape, the provider profile carries the current state as of the last build.

Work with this as data

Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for a2a agent cards

3 MCP tools reach this
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
Search the catalog 
curl "https://apis.io/api/v1/search?q=quicknode&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/quicknode"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

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A second provider on the same verified email joins the account you already have.