@three-ws/pumpfun-mcp

Free, read-only pump.fun + Solana MCP server — token discovery, on-chain analysis, and live 3D snapshots. No API keys.

Install · Quick start · Tools · Configuration · three.ws

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A free, read-only Model Context Protocol server for pump.fun and Solana. It gives Claude — or any MCP client — live token discovery, on-chain bonding-curve and holder analysis, creator fee-claim tracking, Solana Name Service resolution, KOL signals, read-only swap quotes, and shareable live 3D token snapshots. Every Solana RPC and pump.fun API call runs server-side on the canonical three.ws backend, so the data is live and on-chain while the client stays zero-config: no API keys, no RPC URL, no wallet.

Install

Claude Code (one-liner)

claude mcp add pumpfun -- npx -y @three-ws/pumpfun-mcp

Claude Desktop / Cursor / any MCP client

Add to your MCP config (claude_desktop_config.json, .cursor/mcp.json, .mcp.json, etc.):

{
	"mcpServers": {
		"pumpfun": {
			"command": "npx",
			"args": ["-y", "@three-ws/pumpfun-mcp"]
		}
	}
}

Restart the client and the pump.fun tools appear. No install step required.

Run directly

npx -y @three-ws/pumpfun-mcp
# or install globally and run the bin
npm i -g @three-ws/pumpfun-mcp && pumpfun-mcp

Quick start

The server speaks stdio JSON-RPC — your MCP client spawns it via the npx command above. Once configured, ask your client natural-language questions and it picks the right tool:

"What's trending on pump.fun right now?"        → get_trending_tokens
"Show the bonding curve for <mint>"             → get_bonding_curve
"Who are the top holders of <mint>?"            → get_token_holders
"Resolve bonfida.sol"                           → sns_resolve
"Build a 3D snapshot for <mint>"                → pumpfun_token_3d

Tools

All tools are read-only — nothing signs or sends a transaction. pumpfun_quote_swap only quotes; pumpfun_vanity_mint returns a keypair for you to use yourself.

Tool	What it does
search_tokens	Search pump.fun tokens by name, symbol, or mint.
get_token_details	Full metadata for a mint.
get_bonding_curve	Real/virtual quote reserves + graduation progress for a coin still on the curve (on-chain).
get_token_trades	Recent buy/sell history for a token.
get_trending_tokens	Top tokens by market cap.
get_new_tokens	Most recently launched tokens.
get_graduated_tokens	Tokens that graduated to the Raydium AMM.
get_king_of_the_hill	Highest-cap token still on the bonding curve.
get_token_holders	Top holders with concentration analysis (on-chain).
get_creator_profile	A creator's tokens with rug-pull risk flags.
kol_radar	gmgn-style early-detection radar signals.
kol_leaderboard	Top KOL traders ranked by P&L.
pumpfun_list_claims	Recent creator fee-claim events (on-chain).
pumpfun_watch_claims	Fee claims for a creator within a look-back window.
pumpfun_first_claims	First-ever creator claims — a cash-out signal.
pumpfun_quote_swap	Read-only PumpSwap AMM swap quote for a graduated coin (no signing).
pumpfun_watch_whales	Collect large trades on a token over a short window.
pumpfun_vanity_mint	Grind a vanity Solana keypair (secret returned to caller, never stored).
sns_resolve	Resolve a .sol domain to its owner wallet.
sns_reverseLookup	Reverse-lookup a wallet to its primary .sol domain.
social_cashtag_sentiment	Deterministic lexicon sentiment over supplied posts.
social_x_post_impact	Correlate an X post to bonding-curve price impact.
pumpfun_token_3d	Live 3D snapshot of a token — composes metadata, holders, and graduation into a shareable three.ws/coin3d viewer (spinning coin medallion + holder galaxy + graduation ring) and returns the deep-link, an embeddable iframe, and the underlying data.

The live tool list is fetched from the backend at startup; a bundled copy ships as an offline fallback so a fresh install always advertises a correct surface.

How prices are derived

A pump.fun coin has two lifetimes, priced by two different on-chain accounts. Every tool here belongs to exactly one of them, and reading a number from the wrong one is the classic way to get a confidently wrong answer.

Before graduation: the pump program BondingCurve account. Spot price is virtual_quote_reserves / virtual_token_reserves. Those quote-side fields were renamed upstream (virtual_sol_reserves → virtual_quote_reserves, real_sol_reserves → real_quote_reserves) when a non-SOL quote asset became possible, and the curve gained a quote_mint, which is the SOL default on every coin created to date. The rename is the same u64 at the same offset, so the response fields virtualSolReserves / solReserves keep their names and stay SOL-denominated. Served by get_bonding_curve and social_x_post_impact.

After graduation: the PumpSwap (pump_amm) Pool account. Quotes price against the effective quote reserve:

effective_quote_reserves = pool_quote_token_account.amount + pool.virtual_quote_reserves

pool.virtual_quote_reserves is an appended Pool field that carries a non-zero value on launchpad coins from 2026-07-20; on every other pool it is 0 and the effective reserve equals the vault balance exactly. Buys and sells both price on the effective figure, and priceImpactBps measures execution against the spot price it implies, so virtual liquidity reads as depth rather than as impact. The base side is unchanged: still the raw pool_base_token_account.amount. Served by pumpfun_quote_swap.

The two virtual_quote_reserves are different fields on different accounts that happen to share a name. A coin has one or the other, never both. If get_bonding_curve returns complete: true, stop reading the curve and quote the pool.

Upstream reference: pump-public-docs.

Inspect the tools

npx -y @modelcontextprotocol/inspector npx @three-ws/pumpfun-mcp

Configuration

No configuration is required. One optional override exists:

Env var	Default	Purpose
PUMPFUN_MCP_URL	https://three.ws/api/pump-fun-mcp	Backend endpoint. Override only to self-host the handler.

How it works

This package is a small stdio ↔ HTTP bridge. It forwards MCP tools/call requests to the canonical three.ws pump.fun JSON-RPC backend, which performs the actual Solana RPC reads and pump.fun API queries. That keeps one authoritative implementation, ships no secrets to clients, and means the tool surface stays current automatically.

pumpfun_token_3d is a native tool: it runs in-process, orchestrating several backend reads (metadata + bonding curve + holders) and resolving the token logo from its on-chain metadata URI, then returns a deep-link into the three.ws 3D viewer. It needs no extra keys and adds no new backend dependency.

Requirements

• Node.js >= 20 (from engines).
• No API keys, RPC URL, or wallet. Outbound HTTPS to the three.ws backend (or your PUMPFUN_MCP_URL).

Related

• @three-ws/mcp-server — the paid, x402-settled three.ws MCP (text→3D mesh, avatars, pose seeds, ERC-8004 reputation, and a paid pump_snapshot).

Links

• Homepage: https://three.ws
• Changelog: https://three.ws/changelog
• Issues: https://github.com/nirholas/three.ws/issues
• License: Apache-2.0 — see LICENSE

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_{Part of the three.ws SDK suite — 3D AI agents, on-chain identity, and agent payments.
Website · Changelog · GitHub}

License

All rights reserved. See LICENSE.