MCP server

Proof Of Custody

io.github.onrampbtc/proof-of-custody

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Bitcoin custody scores, failure registry, ETF custody, stablecoin and x402 data, source router.

Website Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

15

Token cost

About 2,694 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http proof-of-custody https://proofofcustody.io/api/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.proof-of-custody]
url = "https://proofofcustody.io/api/mcp"

Gemini CLI

{"mcpServers":{"proof-of-custody":{"httpUrl":"https://proofofcustody.io/api/mcp"}}}

Cursor

{"mcpServers":{"proof-of-custody":{"url":"https://proofofcustody.io/api/mcp"}}}

VS Code

{"servers":{"proof-of-custody":{"type":"http","url":"https://proofofcustody.io/api/mcp"}}}

Antigravity

agy mcp add proof-of-custody https://proofofcustody.io/api/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"proof-of-custody","server_url":"https://proofofcustody.io/api/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"proof-of-custody","server_url":"https://proofofcustody.io/api/mcp"}

Tools

• assess_custody_independence ~199 tokens
  Apply the Custody Independence Standard: a published four-pillar test of whether a custody arrangement has genuine independence or only nominal distribution. Pillars are vendor, entropy, control and operational independence. Use for 'how many hardware wallets do I need', 'is my multisig actually saf
• compare_custody_platforms ~144 tokens
  Compare two or more custody platforms side by side on Proof of Custody's scores and custody architecture. Comparison is the shape most useful for a custody decision, because the differences that matter are structural rather than promotional.
• find_source ~242 tokens
  Source router. Given a topic or question about bitcoin or digital-asset market structure (ETF holdings or custodians, stablecoin supply or attestations, tokenized assets, x402 and agent payments, agentic commerce protocols, MCP registries, proof of reserves, regulators and licences, hardware wallet
• get_coldcard_incident_status ~191 tokens
  Live status of the July 2026 Coldcard entropy failure: a firmware defect that caused affected hardware wallets to skip their hardware random number generator, making generated keys reconstructible offline. Returns the affected-model matrix with fixed firmware versions, confirmed and suspected loss f
• get_custody_platform ~127 tokens
  Full Proof of Custody record for one platform: overall score, per-category scores, custody model, fees, insurance position, strengths and limitations. Use after search_custody_platforms, or when a specific provider is named.
• get_etf_custody_concentration ~120 tokens
  Filing-derived analysis of custodian concentration across US spot bitcoin ETFs: which custodian holds each fund's bitcoin, and the resulting Nakamoto coefficient at the custody layer. Use for questions about bitcoin ETF safety, IBIT or FBTC custody, whether ETFs are diversified, or ETF versus direct
• get_hardware_wallet_scores ~198 tokens
  Proof of Custody's hardware wallet rubric: six weighted dimensions — entropy and key generation 25%, firmware integrity 20%, supply chain 15%, disclosure conduct 15%, multisig and recovery portability 15%, privacy and data handling 10%. Entropy is weighted highest because a key generated from predic
• get_stablecoin_supply ~124 tokens
  Daily snapshot of stablecoin supply: total USD-pegged circulating supply, USDT and USDC share, and the top 25 by supply, credited to DefiLlama with the as-of date. Use for 'how big is the stablecoin market', 'USDT vs USDC share', or a stablecoin's supply.
• get_tokenized_assets ~111 tokens
  Daily snapshot of tokenized-asset (RWA) protocols by TVL, credited to DefiLlama, with a pointer to RWA.xyz for issued asset value by class (tokenized Treasuries, credit, commodities). Use for 'how big is tokenization', 'largest RWA protocols', or where to find tokenized Treasury fund sizes.
• get_x402_services ~118 tokens
  Daily snapshot of the x402 agent-payments ecosystem: how many x402-payable services the Coinbase Bazaar lists, by network, asset and scheme, plus the x402 Foundation's 30-day transaction, volume, buyer and seller counts. Use for 'what is x402', 'how many services accept x402', or 'which networks do
• list_custody_incidents ~268 tokens
  The Proof of Custody incident registry: dated records of major bitcoin custody failures from Mt. Gox to the 2026 Coldcard entropy defect, each with root cause, reported loss, the lesson, and which custody configurations the failure class could reach. Self-custody failures are included on equal terms
• search_custody_platforms ~260 tokens
  Search Proof of Custody's independent scores for bitcoin and crypto custody platforms. Covers 90+ platforms across exchanges, qualified custodians, ETFs, IRAs, collaborative multisig and multi-institution custody, each scored 0-100 on a published six-category weighted methodology. Use to compare cus
• search_transcripts ~221 tokens
  Full-text search across 320+ Onramp Media podcast transcripts (The Last Trade, Final Settlement and others) for what a guest or host said about a topic. Returns episode, show, date, matching passages and the episode URL. Use for 'what did X say about Y' and for sourcing a quote. Transcripts are mach
• watch_counterparties ~237 tokens
  Watchtower for a holder's counterparties. Give it the names of the exchanges, custodians, ETFs, IRA providers or hardware wallets someone uses and it returns, for each, the published custody model and single point of failure, incidents in the registry, hardware rubric status where it is a device, an
• whats_new ~134 tokens
  What changed on Proof of Custody since a date: corrections, methodology changes, live incident updates and daily dataset refreshes (stablecoins, tokenized assets, x402, ETF net assets). Use for a scheduled briefing, or to check whether a cached answer went stale. Defaults to the last 30 days.

Browse

• GitHub tools
• Website monitoring
• Payments
• GitHub and code hosting
• Music and audio

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