nodeflare

On-chain intelligence for AI agents — one call, 23 EVM chains.

nodeflare gives your agent the on-chain answers it actually needs — is this token a scam, what does this wallet hold, what will this transaction do — across 23 EVM chains in a single call, including young chains (Robinhood, Plasma, Ink, Zircuit) that Alchemy, Moralis and revoke.cash leave as empty shells.

It ships framework-native tool packs for LangChain, CrewAI and LlamaIndex, plus a plain Python client. Get a free API key (2M compute units/month, no card) at nodeflare.app.

pip install nodeflare              # plain client, stdlib-only, zero deps
pip install "nodeflare[langchain]" # + LangChain tools
pip install "nodeflare[crewai]"    # + CrewAI tools
pip install "nodeflare[llamaindex]"# + LlamaIndex tools

Why

Agents that touch money need on-chain judgment, not raw JSON-RPC. Wiring that up per-chain — an indexer here, a token-safety API there, none of which cover the new chains — is the tax. NodeFlare collapses it into six tools that already speak 23 chains and return decisions, not hex.

The light path (metadata, balances, revert/gas) works without a key. The deep checks — approvals, holder concentration, asset-change tracing, and the Answer Engine — need a free NODEFLARE_API_KEY.

Plain client

from nodeflare import NodeFlareClient

nf = NodeFlareClient(api_key="nf_live_…")   # or set NODEFLARE_API_KEY

# Risk-check a token before an agent buys it
print(nf.token_safety("base", "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"))

# One-call wallet report across all 23 chains
print(nf.wallet_report("0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"))

# Natural-language verdict
print(nf.onchain_answer("Is token 0xdAC17F958D2ee523a2206206994597C13D831ec7 on eth safe?"))

LangChain

from nodeflare.langchain import get_nodeflare_tools
from langchain.chat_models import init_chat_model

tools = get_nodeflare_tools()                  # uses NODEFLARE_API_KEY
llm = init_chat_model("claude-opus-4-8").bind_tools(tools)
# ... hand `tools` to any LangChain agent / AgentExecutor

CrewAI

from crewai import Agent
from nodeflare.crewai import get_nodeflare_tools

analyst = Agent(
    role="On-chain risk analyst",
    goal="Vet tokens and wallets before the crew acts on them",
    tools=get_nodeflare_tools(),
)

LlamaIndex

from llama_index.core.agent import ReActAgent
from nodeflare.llamaindex import get_nodeflare_tools

agent = ReActAgent.from_tools(get_nodeflare_tools(), llm=llm)

Auth

Every get_nodeflare_tools() and NodeFlareClient() reads NODEFLARE_API_KEY from the environment, or takes api_key="nf_live_…" explicitly. Grab a free key at nodeflare.app — 2M compute units/month, no card, crypto or card top-ups when you outgrow it.

Links

• Site & keys — https://nodeflare.app
• Remote MCP server (Claude / ChatGPT connectors) — https://mcp.nodeflare.app
• npm (nodeflare-mcp, nodeflare-agentkit) — https://www.npmjs.com/package/nodeflare-mcp

MIT © NodeFlare