Criptonlabs Agent APIs

At a glance

Runs where

On their server. What you send to it goes to them.

What you need

Nothing: it answered without a login

Tools

16 tools

Its own safety labels

16 read-only

Memory it takes

About 3,900 tokens of your AI's memory, just for its tool descriptions

Largest answer

About 1.4 KB in our test

Speed

Average answer in our test: 432 ms

Tokens are an estimate: the characters in its tool names, descriptions and inputs, divided by 4. The exact number depends on your AI model. Safety labels are what the server says about itself. From our latest test, 10 Nov 2026.

Is Criptonlabs Agent APIs MCP server safe?

• None of the hidden-instruction wordings we know were found in its 16 tool descriptions.
• Its error messages showed no secrets or internal details.
• All 16 of its tools are labeled read-only.
• Overall it scored 98/100 on 10 Nov 2026.

A test can only see what the server shows from outside, not what it does with your data behind the scenes. Connect servers from makers you trust.

What this test does not check

• Its source code and packages.
• What a tool quietly does behind the scenes, such as writing a file or calling another service.
• Instructions hidden inside live tool answers. We only look for those in tool descriptions.
• Hidden instructions worded in a way our list doesn't know yet.
• Tools that could change something. Those are read, never run.

What QAmcp can and can't see · How to tell if an MCP server is safe · Hidden instructions · Prompt injection

Known security advisories

It lists no public code, so there is nothing to look up in GitHub Security Advisories or OSV.dev. QAmcp tests how a server behaves. It does not scan source code.

What it can do

16 tools, in the server's own words.

Test results

Safe mode: only tools labeled read-only were run. How the test works

• !
  Fast enough

  1 warning

  • !xrpl_fee: Slowest tool: xrpl_fee (2.1 s): users will notice the wait
  • and 3 more
  note
• !
  Follows MCP best practices (not scored yet)

  1 tip (not scored)

  • !The tool list is about 56 KB (roughly 14k tokens). AI apps send it with every message, so it takes that much of the AI's memory before any work starts.
  note
• ✓
  ConnectsConnected in 929 ms
  pass
• ✓
  Ready for the newest MCP versionUses the latest MCP version (2026-07-28)
  pass
• ✓
  Lists its toolsFound 16 tools
  pass
• ✓
  Every tool is describedAll 16 tools and their inputs are described
  pass
• ✓
  Tools are labeled safe or dangerousEvery tool has a safety label
  pass
• ✓
  No known hidden instructionsNone of the hidden-instruction wordings we know were found in tool descriptions. New wordings can get past this check.
  pass
• ✓
  Tools work with good inputs

  All good

  • ✓xrpl_fee: Worked (2.1 s)
  • ✓xrpl_network_health: Worked (1.0 s)
  • ✓xrpl_orderbook: Answered with an error, probably because of our sample input: {"type":"https://api.criptonlabs.com/errors/invalid-parameters.md","title":"Bad Request","status":400,"detail":"One or more parameters are …
  • ✓xrpl_amm: Answered with an error, probably because of our sample input: {"type":"https://api.criptonlabs.com/errors/invalid-parameters.md","title":"Bad Request","status":400,"detail":"One or more parameters are …
  • ✓xrpl_account_summary: Answered with an error, probably because of our sample input: {"type":"https://api.criptonlabs.com/errors/invalid-parameters.md","title":"Bad Request","status":400,"detail":"One or more parameters are …
  • ✓xrpl_account_lines: Answered with an error, probably because of our sample input: {"type":"https://api.criptonlabs.com/errors/invalid-parameters.md","title":"Bad Request","status":400,"detail":"One or more parameters are …
  • ✓xrpl_account_transactions: Answered with an error, probably because of our sample input: {"type":"https://api.criptonlabs.com/errors/invalid-parameters.md","title":"Bad Request","status":400,"detail":"One or more parameters are …
  • ✓xrpl_token: Answered with an error, probably because of our sample input: {"type":"https://api.criptonlabs.com/errors/invalid-parameters.md","title":"Bad Request","status":400,"detail":"One or more parameters are …
  • and 8 more
  pass
• ✓
  Bad inputs give a clean error

  All good

  • ✓xrpl_orderbook: Refused missing required input "base" with a clear error
  • ✓xrpl_orderbook: Refused wrong type for "base" with a clear error
  • ✓xrpl_amm: Refused missing required input "a" with a clear error
  • ✓xrpl_amm: Refused wrong type for "a" with a clear error
  • ✓xrpl_account_summary: Refused missing required input "address" with a clear error
  • ✓xrpl_account_summary: Refused wrong type for "address" with a clear error
  • ✓xrpl_account_lines: Refused missing required input "address" with a clear error
  • ✓xrpl_account_lines: Refused wrong type for "address" with a clear error
  • and 6 more
  pass
• ✓
  No secrets leakedChecked 21 error messages: no secrets or internal details
  pass
• ✓
  Resources and prompts work

  All good (48 resources, 1 prompt)

  • ✓Opened 10 of 10 resources (a sample of 10 of 48)
  • ✓An address that does not exist gets a clean "not found" error
  • ✓Opened 1 of 1 prompts
  pass
• –
  Tools work togetherNo tool's answer could be fed into another tool, so there were no chains to test (not counted either way)
  not tested

Test it yourself

Free and open source. Same checks, same score.

Show this score on GitHub

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Score over time

• 10 Nov 202698

One test so far. New tests will show here.

Reviews

Coming soon: reviews from people who use Criptonlabs Agent APIs, signed in with GitHub, one per person. Reviews never change the score.