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com.pegproof/pegproof

com.pegproof/pegproofpegproof.comstreamable-httpv1.0.0Scanned

Check stock token addresses on Robinhood Chain for free; supply and issuance data paid with x402.

6 tools: 4 change things and 2 only read.

Tools: 0 delete, 0 irreversible, 4 write, 2 read.
  • Reads private data · 0
  • Reads text others write · 6
  • Can send data out · 0
  • No findings

Anlyon alternative

4 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

6 tools

Changes things 4Claude Code: ask
  • check_addressCheck a contract address on Robinhood Chain before buying, holding or accepting it: a token in Robinhood's list, a known look-alike, or unknown.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Check a contract address on Robinhood Chain before buying, holding or accepting it: a token in Robinhood's list, a known look-alike, or unknown. Free. A look-alike answer names the token it imitates; another issuer's listed token is unknown with issuer_list. Same answer as GET https://pegproof.com/v1/address/{address}.

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: true
  • incidentsMonitor all of Robinhood's stock tokens in one call: integrity incidents, newest first.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Monitor all of Robinhood's stock tokens in one call: integrity incidents, newest first. An incident is a token whose supply or treasury balance diverged from its full mint/burn ledger, or a ledger rebaseline, with its type, status and block window. type=integrity (default), operational (collector errors) or all. On-chain observations and reconciliation findings, not financial advice. Costs $0.005 per call, paid with x402 (USDC on Base or Arbitrum One).

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: false
    • openWorldHint: true
  • token_eventsAudit when a Robinhood stock token's supply was created or destroyed: every mint, burn, issue, redeem and transfer, newest first.Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Audit when a Robinhood stock token's supply was created or destroyed: every mint, burn, issue, redeem and transfer, newest first. Pass a ticker (NVDA) or a contract address on Robinhood Chain (4663); page through with the opaque cursor (keyset on block and log index). On-chain observations reconstructed from chain event logs, not financial advice. Costs $0.005 per call, paid with x402 (USDC on Base or Arbitrum One).

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: false
    • openWorldHint: true
  • token_summaryCheck a Robinhood stock token before an agent buys, holds or accepts it: the contract Robinhood lists, or a known look-alike?Reads text others writeNo findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Check a Robinhood stock token before an agent buys, holds or accepts it: the contract Robinhood lists, or a known look-alike? Pass a ticker (NVDA) or a contract address on Robinhood Chain (4663). For a listed token: total supply, treasury balance, multiplier, ledger coverage, open integrity flags and the look-alikes pegproof knows of. For a look-alike address: which token it imitates. On-chain observations reconstructed from chain event logs, not financial advice. Costs $0.002 per call, paid with x402 (USDC on Base or Arbitrum One).

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: false
    • openWorldHint: true
Only reads 2Show 2 read-only tools
  • find_tokenFind the contract address of a stock token on Robinhood Chain by ticker or company name, before an agent buys it.Reads text others writeNo findings

    Why it is in this group

    • The name "find_token" says "find": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Find the contract address of a stock token on Robinhood Chain by ticker or company name, before an agent buys it. Free. Returns Robinhood's tokens with the look-alikes pegproof knows of, then other issuers' listed tokens (pegproof does not check their supply).

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: true
    • openWorldHint: true
  • token_snapshotVerify a Robinhood stock token's state at a past block: total supply, treasury balance and multiplier from the newest confirmed snapshot at or before it.Reads text others writeNo findings

    Why it is in this group

    • The name "token_snapshot" says "snapshot": a word for reading.

    What it can reach

    • untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
    Description, as the server wrote it
    Verify a Robinhood stock token's state at a past block: total supply, treasury balance and multiplier from the newest confirmed snapshot at or before it. Use it to check a historical position, report or trade against what was on-chain then. Pass a ticker or contract address and block=<number>. On-chain observations reconstructed from chain event logs, not financial advice. Costs $0.01 per call, paid with x402 (USDC on Base or Arbitrum One).

    Annotations the server declares

    • readOnlyHint: true
    • idempotentHint: false
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write6
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out0
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http pegproof https://pegproof.com/mcp
claude mcp add --transport http pegproof https://pegproof.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__pegproof__find_token",
      "mcp__pegproof__token_snapshot"
    ],
    "ask": [
      "mcp__pegproof__check_address",
      "mcp__pegproof__token_summary",
      "mcp__pegproof__token_events",
      "mcp__pegproof__incidents"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as pegproof. Review it before you use it.

Capability tags behind 6 rules
  • mcp__pegproof__check_address untrusted-input
  • mcp__pegproof__find_token untrusted-input
  • mcp__pegproof__token_summary untrusted-input
  • mcp__pegproof__token_events untrusted-input
  • mcp__pegproof__incidents untrusted-input
  • mcp__pegproof__token_snapshot untrusted-input

Pin

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/com.pegproof/pegproof/verify?hash=c6ad100dcf1993d0b4dec9afbc4f3ccb387f6d2bf9e2d27406f1e72cb9628517" | jq -e '.changed == false'

Pinned hash c6ad100dcf19, from Nov 5, 2026, 13:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.pegproof/pegproof/changes.xml

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Badge

anlyon.dev badge for com.pegproof/pegproof
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Source: MCP Registry. Synced Nov 5, 2026, 13:17 UTC.