Paid Solana intelligence tools for AI agents.

Three tools. Per-call USDC settlement on Solana. No subscriptions, no API keys - just an agent and a wallet.

Live on Solana Devnet

Built on Covalent GoldRush

x402 USDC Settlement

Today: AI agents can't pay for data.

Agents reasoning about Solana need rich on-chain context, but every existing API requires accounts, API keys, and monthly subscriptions. That doesn't fit how agents actually work.

mcgold: pay-per-query intelligence.

Discover tools via MCP. Pay for each call in USDC, settled on Solana in seconds. The agent gets the data it needs, you only pay for what you use.

Built on Covalent's GoldRush API: structured Solana balances and USD marks for wallet risk, token spot pricing in trace_whale_activity, and a production call that requests GoldRush's token-holder endpoint for cross-checking Helius when that route returns Solana pages. Parsed transaction history and movements use Helius. Different tools pull from different strengths.

Three tools, ready for your agent.

assess_wallet_risk

Score any Solana wallet's risk profile across six factors: age, holdings concentration, transaction diversity, longtail exposure, activity recency, and dust patterns.

$0.02 USDC per call

trace_whale_activity

Analyze top-holder behavior for any token: notable movements, concentration metrics, and risk flags like net selling or distribution skew.

$0.01 USDC per call

score_counterparty_trust

Score the trust between two wallets for transacting: direct interaction history, shared counterparty networks, behavioral similarity, and stability red flags.

$0.03 USDC per call

See an agent use mcgold in real time.

A Claude agent evaluates whether to accept a large transfer from a counterparty.

Demo Output

[AGENT] Starting counterparty trust analysis
[AGENT] My wallet:    4dHc2cag4hmVeMFuFHF2Gjc4BoUiKFFMCTGfiWmyMsvx
[AGENT] Alice wallet: 9sHdrUkpXAr4wQeKMh4RGKepDHX11RK5uZQoCmR5Y5zR

[CLAUDE] I'll start by assessing Alice's wallet risk profile,
since knowing her general behavior is foundational to evaluating
this transfer.

[PAY] Calling assess_wallet_risk
[PAY] Price: $0.02 USDC
[PAY] Payment confirmed: 2psxoniGxS3z...je9eyH
[TOOL] Risk score: 14/100 (low)
       - Established wallet with 3+ years of history
       - Diversified portfolio (~$6,700)
       - No concerning concentration

[CLAUDE] Alice's wallet looks legitimate. But I should check our
specific counterparty relationship for any red flags.

[PAY] Calling score_counterparty_trust
[PAY] Price: $0.03 USDC
[PAY] Payment confirmed: 4ZP18bsx...QQupb
[TOOL] Trust score: 28/100 (caution)
       - No prior direct transaction history
       - No shared counterparties
       - Red flag: no_prior_interaction

[CLAUDE] FINAL RECOMMENDATION: PROCEED_WITH_CAUTION

The wallet itself raises no red flags - the caution is purely
about the unknown relationship, which is normal for first-time
senders. Once verified off-chain, this looks like a relatively
safe transaction.

Total: $0.05 USDC across 2 tool calls

Real Claude Sonnet 4.6 reasoning. Real USDC payments on Solana devnet. View transaction: explorer.solana.com/tx/2psxoniGxS3z...je9eyH

Integrate in minutes.

Standard MCP. Standard x402. No proprietary SDK.

# 1. Discover available tools
curl -X POST https://mcgold.onrender.com/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

# 2. Call a tool (server returns 402 with payment requirements)
curl -X POST https://mcgold.onrender.com/mcp \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{
    "jsonrpc": "2.0",
    "id": 2,
    "method": "tools/call",
    "params": {
      "name": "trace_whale_activity",
      "arguments": {
        "mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
      }
    }
  }'

# 3. Pay 0.01 USDC on Solana, retry with PAYMENT-SIGNATURE header

Full integration example: github.com/Demiladepy/Mcgold/blob/main/src/demo-agent.ts

Designed for agents, not humans.

MCP-native

Tools auto-discovered by any MCP-compatible client. Cursor, Claude Desktop, custom agents - they just work.

Real on-chain settlement

Every call settles in USDC on Solana. No subscriptions to manage, no API keys to rotate, no accounts to create.

Powered by GoldRush

Tools are built on Covalent's GoldRush API and Helius RPC. Real-time, accurate, production-grade Solana data.