{
  "markdown": "# Solana Priority Fee Estimator API\n\n[![MCP Server](https://img.shields.io/badge/MCP-server-blue)](https://solana-fees.api.klymax402.com/mcp)\n[![x402](https://img.shields.io/badge/payments-x402-6E56CF)](https://x402.org)\n[![License: MIT](https://img.shields.io/badge/license-MIT-green)](LICENSE)\n\nSolana priority fee estimates at 6 levels (min to max). Essential for every Solana transaction. Pay-per-call via [x402](https://x402.org) (USDC on Base L2) -- no API key, no signup, no rate-limit wall.\n\nPart of the [klymax402](https://klymax402.com) marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.\n\n## Quickstart -- MCP\n\nAdd to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):\n\n```json\n{\n  \"mcpServers\": {\n    \"solana-fees\": {\n      \"url\": \"https://solana-fees.api.klymax402.com/mcp\"\n    }\n  }\n}\n```\n\n## Quickstart -- HTTP (x402)\n\n```bash\ncurl \"https://solana-fees.api.klymax402.com/api/fees\"\n# -> 402 Payment Required, with an x402 payment challenge in the response body\n```\n\nAny x402-aware client ([`@x402/fetch`](https://www.npmjs.com/package/@x402/fetch), [`x402-agent-tools`](https://www.npmjs.com/package/x402-agent-tools), ATXP) handles the 402 -> sign -> retry cycle automatically.\n\n## Tools\n\n| Tool | Method | Path | Price | Description |\n|---|---|---|---|---|\n| `solana_get_priority_fees` | GET | `/api/fees` | $0.003 | Priority fee estimates for Solana transactions |\n\n### `solana_get_priority_fees`\n\nUse this when you need priority fee estimates before sending a Solana transaction. Returns recommended compute unit prices at 6 levels based on recent network activity.\n\n**Parameters**\n\n| Name | Type | Required | Description |\n|---|---|---|---|\n| `program` | string | no | Program ID to get program-specific fees (e.g. JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4 for Jupiter). Optional — omit for global fees. |\n\n**Returns**\n\n- `fees` -- object with 6 fee levels in microlamports per compute unit\n- `min` -- minimum fee observed (cheapest, may fail in congestion)\n- `low` -- 25th percentile fee (budget transactions)\n- `medium` -- 50th percentile fee (recommended default)\n- `high` -- 75th percentile fee (fast confirmation)\n- `veryHigh` -- 90th percentile fee (priority during congestion)\n- `max` -- maximum fee observed (guaranteed fast)\n\nExample response:\n\n```json\n{\"fees\":{\"min\":1,\"low\":100,\"medium\":1000,\"high\":5000,\"veryHigh\":50000,\"max\":500000},\"slot\":285432100,\"program\":\"global\",\"updatedAt\":\"2026-04-13T12:00:00Z\"}\n```\n\n**When to use**: every Solana transaction to set the right priority fee. Essential for Jupiter swaps, NFT mints, token transfers, and program interactions.\n\n## Example agent prompts\n\n- \"Priority fee estimates before sending a Solana transaction\"\n\n## Payment\n\n- Protocol: [x402](https://x402.org) -- HTTP-native pay-per-call, no signup, no API key\n- Network: Base L2 (`eip155:8453`)\n- Asset: USDC\n- Facilitator: Coinbase CDP (primary), PayAI (fallback)\n- Also reachable via [ATXP](https://atxp.ai) (OAuth-wrapped x402, RFC 9728 protected-resource metadata)\n\n## Part of klymax402\n\n100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.\n\n- Catalog: https://klymax402.com/llms.txt\n- Full API reference: https://klymax402.com/llms-full.txt\n- Live stats: https://klymax402.com/stats\n\n## License\n\nMIT\n",
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  "sha": "c94a033898fa72327e96780c945d1a6753dad9f6f60d9f6f8c04ce7ca5521fbd",
  "repo_slug": "br0ski777/solana-fees-x402",
  "fonte": "repo",
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  "api": "https://agentalog.com/api/listings/mcp_io_github_br0ski777_solana_fees_54ba5343/readme"
}