Obol
This is a pay-per-request Solana API that skips API keys and subscriptions entirely. Agents pay in USDC using the x402 protocol, then get access to wallet analytics, token prices via Jupiter, DeFi position data, swap execution, and liquid staking yield comparisons. Pricing ranges from half a cent for token prices to 25 cents for swap transaction building. The MCP server exposes 13 tools covering everything from portfolio breakdowns to P&L calculations. Reach for this when you want Claude to analyze Solana wallets, quote swaps, or assess DeFi positions without managing credentials. Built on Helius RPC with Redis caching and full TypeScript types.
- tools
- 13
- transport
- STDIO
- env var
- 1
- last updated
- Apr 5, 2026
Tools
13 toolsPublic tool metadata for what this MCP can expose to an agent.
obol_wallet_overviewSOL balance, token count, total value
SOL balance, token count, total value
No parameter schema in public metadata yet.
obol_wallet_portfolioFull holdings with prices and breakdown
Full holdings with prices and breakdown
No parameter schema in public metadata yet.
obol_wallet_activityTransaction history with categorization
Transaction history with categorization
No parameter schema in public metadata yet.
obol_wallet_riskMulti-factor risk assessment
Multi-factor risk assessment
No parameter schema in public metadata yet.
obol_wallet_pnlToken flow analysis and P&L
Token flow analysis and P&L
No parameter schema in public metadata yet.
obol_token_priceReal-time price via Jupiter
Real-time price via Jupiter
No parameter schema in public metadata yet.
obol_token_metadataName, symbol, supply, decimals
Name, symbol, supply, decimals
No parameter schema in public metadata yet.
obol_swap_quoteJupiter swap quote with routing
Jupiter swap quote with routing
No parameter schema in public metadata yet.
obol_swap_executeBuild swap transaction for signing
Build swap transaction for signing
No parameter schema in public metadata yet.
obol_defi_positionsLSTs, LPs, lending positions
LSTs, LPs, lending positions
No parameter schema in public metadata yet.
obol_lst_yieldsLST yield comparison
LST yield comparison
No parameter schema in public metadata yet.
obol_healthAPI health check (free)
API health check (free)
No parameter schema in public metadata yet.
obol_infoEndpoint pricing and info (free)
Endpoint pricing and info (free)
No parameter schema in public metadata yet.
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OBOL_URLURL of the Obol API instance
Readme
obol
Pay the ferryman. Solana agent gateway via x402.
Obol is a pay-per-use Solana API for AI agents. No API keys, no subscriptions — agents pay per request in USDC using the x402 payment protocol. Solana's sub-cent transaction costs make micropayments viable for the first time.
Named after the coin placed on the tongue of the dead to pay Charon for passage across the River Styx. The original micropayment.
How it works
- Agent requests data from a paid endpoint
- Obol returns HTTP 402 with a payment requirement (amount, recipient, network)
- Agent sends USDC on Solana matching the requirement
- Agent retries with transaction proof in the
X-PAYMENTheader - Obol verifies on-chain and returns the data
No accounts. No tokens. No onboarding. Just pay and go.
Endpoints
Details
- Repository
- github.com/halfkey/obol
- Categories
- AI & LLM Tools, Finance & Commerce
- Package
obol-mcp- Transport
- STDIO
- Registry
- MCP registry, active
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