Solana Priority Fee Estimator API
Estimate Solana priority fees at multiple urgency levels with SOL and USD context while your agent drafts transactions or wallet UX.
Overview
Solana Fees is a MCP server for the Build phase that estimates Solana priority fees at six levels with SOL/USD costs and congestion via a remote x402 API.
What is this MCP server?
- Remote SSE MCP at solana-fees.api.klymax402.com
- Priority fee estimates at 6 congestion levels
- Costs expressed in SOL and USD
- Network congestion signal alongside fee tiers
- x402 micropayment; version 1.1.0; repo solana-fees-x402
- 6 documented priority fee levels
- MCP server version 1.1.0
- Remote SSE endpoint with x402 micropayment
What problem does it solve?
Solana transactions fail or surprise users when agents pick generic fees without current priority tiers or USD equivalents.
Who is it for?
Indie web3 builders adding Solana features who want fee quotes inside Claude Code or Cursor during integration.
Skip if: Non-Solana chains, production-only RPC fee oracles you self-host, or teams avoiding x402 paid remote tools entirely.
What do I get? / Deliverables
Your agent can recommend fee levels and cost copy aligned with congestion before you ship send, mint, or swap flows.
- Six-tier priority fee recommendations with SOL and USD framing
- Congestion context for UX defaults and agent-generated transaction snippets
Recommended MCP Servers
Journey fit
How it compares
Solana fee quoting MCP tool, not a wallet, indexer, or on-chain execution skill.
Common Questions / FAQ
Who is solana-fees for?
Developers building Solana-connected apps or agent workflows who need readable priority fee and USD context during implementation.
When should I use solana-fees?
Use it in Build while designing transaction defaults, error messages, and compute budget logic for Solana integrations.
How do I add solana-fees to my agent?
Register https://solana-fees.api.klymax402.com/mcp (SSE) in your MCP client and configure x402 micropayments for the estimator host.