# three.ws Solana Memo Media (npm · @three-ws/solana-memo-media-mcp) Extract validated image data URIs from Solana SPL Memos and return them inline to MCP clients. - Trust score: 75/100 (medium) - Change this week: +4 - Registry status: active - Liveness: live - Owner verified: no - Last scored: 2026-10-22 ## Components - npm · `@three-ws/solana-memo-media-mcp`: 75/100 (this document), [markdown](https://verifymcp.io/servers/nirholas-solana-memo-media-mcp/three-ws-solana-memo-media-mcp.md), [page](https://verifymcp.io/servers/nirholas-solana-memo-media-mcp/three-ws-solana-memo-media-mcp) ## Channel facts - Registry: `npm` - Package: `@three-ws/solana-memo-media-mcp` - Version: `0.1.0` - Transport: `stdio` ## Trust breakdown How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog) Scored 2026-10-22. - **Supply Chain Security**: 98/100 - No malware found by supply-chain analysis. - No known CVEs affecting this package version or its production dependencies. - No install/post-install scripts declared. - 31 of 93 dependencies flagged as unhealthy. - **Provenance & Transparency**: 48/100 - Source repository is publicly reachable at the declared URL. - Provenance check failed: no build-provenance attestation is published. - Clear OSI-approved license (Apache-2.0). - Actively maintained (last published 11 days ago). - Publishes a security disclosure policy (SECURITY.md). - **Schema Quality & AI Usability**: 77/100 - AI-judged instruction clarity (excellent). - Context-footprint check failed: tool/resource definitions use about 580 tokens (~145/item across 4 items; 4 tools + 0 resources), over budget; trim descriptions and params. - Usage-examples check failed: none of the tools include examples. - **Stability & Change Management**: 27/100 - Stability observed for 8 of 30 days with no destabilising changes; credit accrues until the full window elapses. - **Tool Coverage**: 100/100 - 100% of tools have a non-trivial description (not blank, and not just the tool's name). - 100% of tool parameters carry a description. - **Tool Safety**: 100/100 - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured. - We read all 4 captured tool definition(s), and no name or description among them implies an irreversible operation. - An AI judge read all 5 captured unit(s) of tool text and found none that tries to manipulate the model reading it. - **Capabilities**: 100/100 - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28. ## Install ### How do I install the three.ws Solana Memo Media MCP server? three.ws Solana Memo Media runs locally as an npm package, launched with npx -y @three-ws/solana-memo-media-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation. ### Claude ```bash claude mcp add nirholas-solana-memo-media-mcp -- npx -y @three-ws/solana-memo-media-mcp ``` ### Cursor ```json { "mcpServers": { "nirholas-solana-memo-media-mcp": { "command": "npx", "args": [ "-y", "@three-ws/solana-memo-media-mcp" ] } } } ``` ### VS Code ```json { "servers": { "nirholas-solana-memo-media-mcp": { "command": "npx", "args": [ "-y", "@three-ws/solana-memo-media-mcp" ] } } } ``` ### Codex ```bash codex mcp add nirholas-solana-memo-media-mcp -- npx -y @three-ws/solana-memo-media-mcp ``` ### opencode ```json { "$schema": "https://opencode.ai/config.json", "mcp": { "nirholas-solana-memo-media-mcp": { "type": "local", "command": [ "npx", "-y", "@three-ws/solana-memo-media-mcp" ], "enabled": true } } } ``` ### OpenClaw ```bash openclaw mcp add nirholas-solana-memo-media-mcp --command npx --arg -y --arg @three-ws/solana-memo-media-mcp ``` ### Hermes ```yaml mcp_servers: nirholas-solana-memo-media-mcp: command: "npx" args: ["-y", "@three-ws/solana-memo-media-mcp"] ``` ### Netclaw ```json { "McpServers": { "nirholas-solana-memo-media-mcp": { "Transport": "stdio", "Command": "npx", "Arguments": [ "-y", "@three-ws/solana-memo-media-mcp" ] } } } ``` ### Vellum ```bash assistant mcp add nirholas-solana-memo-media-mcp -t stdio -c npx -a -y @three-ws/solana-memo-media-mcp ``` ### Other ```json { "mcpServers": { "nirholas-solana-memo-media-mcp": { "command": "npx", "args": [ "-y", "@three-ws/solana-memo-media-mcp" ] } } } ``` ## Changelog Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims. ### 2026-10-22 (score 75, +4) - [functional improvement] Stability: unverified → 0.27 ### 2026-10-14 (score 71, +32) - [security improvement] Injection markers: unverified → pass - [security] First check of Judged manipulation: pass - [security] Stability: Stability not yet verified: not enough scan history yet (needs a 30-day window). - [functional improvement] Tool coverage: unverified → 100 - [functional improvement] MCP protocol: unverified → pass - [functional] First check of Schema quality: fail - [functional] First check of Schema quality: excellent - [functional] First check of Destructive annotations: pass - [functional] First check of Schema quality: fail - [functional] First check of Tool coverage: 100 ### 2026-10-12 (score 39) First indexed and scored. ## MCP tools (4) ### `decode_solana_memo_data_uri` (~124 tokens) Decode a Solana memo data URI Decode and validate one base64 image data URI from a Solana memo. Only PNG, JPEG, WebP, and GIF are accepted. The bytes stay local to the MCP process, are checked against their claimed file signature, and return inline as an MCP image with byte length, SHA-256, and dimensions when available. Use this when you already hold a data URI string; to pull media from a transaction call extract_solana_memo_media instead. Input parameters: - `dataUri` (string, required): A complete base64 image data URI from an SPL Memo instruction. ### `extract_solana_memo_media` (~123 tokens) Extract media from a Solana transaction memo Fetch a confirmed Solana transaction (legacy, v0, or v1), inspect top-level and inner SPL Memo instructions, and render every supported embedded image data URI inline. The response identifies the source signature, fee payer, slot, and transaction version, and reports rejected media without returning unsafe bytes. This is chain data, not a claim of authorship or safety. Use this when you have a transaction signature; to scan an address for media call find_solana_memo_media. Input parameters: - `signature` (string, required): Solana transaction signature in base58. ### `find_solana_memo_media` (~179 tokens) Find recent memo media for a Solana address Scan a Solana address's recent confirmed transactions and return only validated image data URIs carried by SPL Memo instructions. Signatures whose memo summary holds no data URI are skipped without fetching the transaction, so a scan costs one RPC call plus one per candidate. Pass a memo program id as the address to watch every memo written to it. Use the returned signatures to verify provenance in an explorer. Use this when you have an address but no signature; for one known transaction call extract_solana_memo_media. Input parameters: - `address` (string, required): Solana wallet, token account, or program address in base58. - `before` (string): Continue the scan from signatures older than this one (the previous response's next_before). - `limit` (integer): Recent signatures to scan, from 1 to 1000 (default 100). ### `get_solana_memo_media_status` (~61 tokens) Solana memo media capability Report the local decoding policy, recognized memo programs, and ordered Solana RPC failover hosts. No network call is made and no data is stored. Use this to check which RPC hosts and memo programs the server will use before a scan. ## Diagnostics Captured diagnostic sections: Provenance, Dependencies. The full working is on the page: https://verifymcp.io/servers/nirholas-solana-memo-media-mcp/three-ws-solana-memo-media-mcp#diagnostics ## Score history - 2026-10-22: 75 - 2026-10-21: 71 - 2026-10-20: 71 - 2026-10-19: 71 - 2026-10-18: 71 - 2026-10-17: 71 - 2026-10-16: 71 - 2026-10-15: 71 - 2026-10-14: 71 - 2026-10-13: 39 - 2026-10-12: 39 ## Common questions ### What is the three.ws Solana Memo Media MCP server? three.ws Solana Memo Media is an MCP server listed in the public MCP registry as io.github.nirholas/solana-memo-media-mcp. Extract validated image data URIs from Solana SPL Memos and return them inline to MCP clients. This page covers its npm package (@three-ws/solana-memo-media-mcp). ### Is the three.ws Solana Memo Media MCP server safe to use? three.ws Solana Memo Media scores 75 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 22 October 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm. ### What tools does the three.ws Solana Memo Media MCP server expose? three.ws Solana Memo Media exposes 4 tools: decode_solana_memo_data_uri, extract_solana_memo_media, find_solana_memo_media, get_solana_memo_media_status. Their descriptions and schemas cost roughly 487 tokens of context every time the server is loaded. ### Is the three.ws Solana Memo Media MCP server still maintained? three.ws Solana Memo Media is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced. ### What licence is the three.ws Solana Memo Media MCP server under? three.ws Solana Memo Media declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls. ## Links - npm package: https://www.npmjs.com/package/@three-ws/solana-memo-media-mcp - Socket report: https://socket.dev/npm/package/@three-ws/solana-memo-media-mcp - Repository: https://github.com/nirholas/three.ws - Website: https://three.ws/ - Changelog RSS feed: https://verifymcp.io/servers/nirholas-solana-memo-media-mcp/three-ws-solana-memo-media-mcp.xml - Changelog JSON feed: https://verifymcp.io/servers/nirholas-solana-memo-media-mcp/three-ws-solana-memo-media-mcp.json - HTML version of this page: https://verifymcp.io/servers/nirholas-solana-memo-media-mcp/three-ws-solana-memo-media-mcp