A2A Agent Card · Helius

Helius for Agents

Helius is the Solana toolkit for AI agents. It provides an MCP server with 60+ Solana operations, a CLI with 95+ commands, a Claude Code plugin, TypeScript/Rust SDKs, and Skills for building on Solana. Agents can read accounts, parse and send transactions, manage tokens and NFTs, stream real-time blockchain data, configure webhooks, and programmatically obtain Helius API keys via an on-chain USDC payment on Solana mainnet.

Open the live agent card → Agent endpoint Helius provider profile
Near-conformant. Correctly shaped against the A2A 1.0.0 AgentCard object, but omits optional fields an agent may expect.
Provider: Helius Conformance: Near-Conformant Protocol: 0.3.0 Transport: Version: 1.0.0 Host: helius.dev 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.helius.dev/.well-known/agent-card.json
Skills (8)

Solana RPC solana-rpc

High-performance Solana RPC on mainnet and devnet. Query accounts, balances, blocks, slots, transaction signatures, token supply, and program data.

solanarpcblockchainaccountsread

Digital Asset Standard (DAS) API digital-asset-standard

Unified API for Solana NFTs, compressed NFTs, and tokens. Fetch asset metadata, search assets, retrieve Merkle proofs, and list assets by owner, collection, creator, or authority.

nftdascompressed-nftstokensmetadata

Helius Sender & Priority Fees transaction-sending

Submit Solana transactions with Helius Sender (routed across every available high-speed pathway, with atomic bundle support) and query recommended priority fees for reliable landing under network load.

transactionssendpriority-feesbundles

Enhanced Transactions transaction-parsing

Parse Solana transactions into structured, human- and agent-readable events (transfers, swaps, NFT mints, stake activity). Fetch enriched per-wallet history (including token account activity) via Helius-exclusive endpoints like `getTransactionsForAddress`.

transactionsparsinghistorywalletenhanced

LaserStream gRPC & WebSockets realtime-streaming

Subscribe to Solana state in real time: account updates, transactions, program logs, and shred-level data via LaserStream gRPC or WebSockets.

websocketslaserstreamstreamingrealtimegrpcshreds

Webhooks webhooks

Create, update, list, and delete Helius webhooks that push transaction and account events to an agent-controlled HTTPS endpoint.

webhookseventspipelinespushnotifications

Wallet Intelligence wallet-intelligence

Analyze Solana wallets: portfolio value with USD pricing, token holdings, transfer history, funding source, and cross-wallet identity resolution.

walletportfolioanalyticsidentity

Agentic API Key Signup agentic-signup

Agents can obtain a Helius API key end-to-end via the Helius CLI by paying 1 USDC on Solana mainnet. Includes keypair generation, balance checks, idempotent signup, and API key retrieval.

onboardingapi-keycliusdcself-serviceautonomous
Documentation
https://www.helius.dev/docs/agents/overview
Evidence. Fetched 2026-07-28 from https://www.helius.dev/.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=helius&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/helius"

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

Get an API key

Free tier, no email required.

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