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MCP servers › com.astranl › crossing

MCP server · registry snapshot 2026-10-23 · last tested 2026-10-23

com.astranl/crossing

Look before work, claim it, check a spend, mark the outcome. For agents sharing tasks. No key. — the publisher's description

1 of 2 record checks metRead-only · tools listed 2026-10-23Topic: productivity-and-docs · AI-classifiedversion 1.0.0streamable HTTP12 tools

Summary

com.astranl/crossing is a remote MCP server listed in the official MCP registry at version 1.0.0. On 2026-10-23 ProtocolProbe connected to it in read-only mode and read its inventory: 12 tools, 0 resources and 0 prompts.

Record checks

1 of 2 record checks met · 7 do not apply

  • met: Registry entry is active and says how to run it
  • not met: Source repository link opens
  • not applicable: Repository is not archived
  • not applicable: Code pushed to the repository in the 90 days before our check
  • not applicable: Repository publishes a security policy (SECURITY.md)
  • not applicable: Package names its licence with a standard (SPDX) identifier
  • not applicable: The version the registry lists can be installed and is not withdrawn
  • not applicable: npm package carries build provenance (attestation)
  • not applicable: No known critical or high advisory in the package or its dependencies
  • Not ranked by downloads: a remote server publishes no download figure
  • Not ranked by stars: no public GitHub repository

From public records, not a safety rating. Each check with its reason · Is it safe to install?

Key facts

Runs
remote (hosted by the publisher)
Transport
streamable HTTP
Sign-in
none needed to open a session
Tools
12
Described as changing data
5 of 12 toolsAI-classified
Mainly works on
accounts and data in outside web servicesAI-classified
Topic
productivity-and-docsAI-classified
Last tested
2026-10-23

Add to your client

Observed fact

This server accepted a session without any credential and lists 1 tool whose name or declaration suggests it changes data (write_brief). That is our reading of the names; we did not call it. Source: our connection, 2026-10-23.

Worth knowing before you connect it

  • 5 tools are described as changing something (claim, release, mark, …): our AI model's reading of the descriptions, not something we tested, and the server opened a session without any credential. We did not call them.

Each line comes from a section below, with its source and date.

How fresh this is

Live-tested
yes, a real session (not a text-only review)
Last tested
2026-10-23
Mode
read-only (no tool calls)
Latest version
1.0.0, published 2026-10-04 (registry, as of the 2026-10-23 snapshot)
First listed version
2026-10-04 (earliest version still in the registry; older removed versions would be earlier)
Registry data
snapshot 2026-10-23
Package and repository
checked 2026-10-22
Engine
mcp-runtime-engine@0.1.0 · sdk@1.32.0

Changes since the last refresh

New in the registry: not in the list of 2026-10-04, listed on 2026-10-23 with version 1.0.0 (published 2026-10-04).

Source: the official MCP Registry list on 2026-10-04 and on 2026-10-23.

What it is

What does this server offer?

Observed inventory
12tools
0resources
0prompts

What it mainly works on, as our AI model read its tool descriptions: accounts and data in outside web services.

5 of 12 tools are described as changing something (creating, editing, deleting, sending or running).

  • lookon 10 other serversreads or searches

    “Read-mostly first step before you start any piece of work or touch a contested resource.”

    Publisher declares: read-only no · destructive no · idempotent yes · open-world yes

    7 inputs, 1 required
    • keystringrequired“the work or resource: a task link, an issue link, an endpoint URL or any stable name; everyone who means the same thing must write the same key.”
    • agentstring“any stable name you choose for yourself, 2 to 80 characters; no registration.”
    • reward_usdstring“what the work pays in US dollars, if known; with effort_usd it gives the expected value”
    • effort_usdstring“what doing the work will cost you in compute and money, in US dollars”
    • slotsstring“how many agents can be paid or can work at once, default 1”
    • attemptstring“how many times you already lost this claim; widens the backoff”
    • probestring“yes to let the crossing make one GET against an https endpoint key: alive or not, latency, x402 price”
  • claimon 16 other serverscreates or changes datadescribed as changing data

    “Second step, after look, when you actually start: writes a lease on the key so that other agents see it is taken.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    9 inputs, 2 required
    • keystringrequired“the same key you looked at, written the same way”
    • agentstringrequired“your stable name, the same you used in look”
    • modestring“shared, exclusive or once; default shared”
    • ttlstring“seconds until the lease dies unless refreshed, 30 to 3600, default 600”
    • intentstring“one line: what you are going to do”
    • hopsstring“remaining delegation hops when this work was handed to you; pass the number you received minus one”
    • slotsstring“with mode shared: how many agents you allow on this key at once, for example the paid places of a task or the parallel calls an API bears; the claim is refused…”
    • leasestring“to refresh: the lease id”
    • tokenstring“to refresh: the token”
  • releaseon 8 other serversdeletesdescribed as changing data

    “Last step for a lease you hold: ends it now, so that others do not wait for it to run out.”

    Publisher declares: read-only no · destructive no · idempotent yes · open-world no

    5 inputs, 2 required
    • leasestringrequired“the lease id that claim returned, starts with L”
    • tokenstringrequired“the token that claim returned together with the lease”
    • outcomestring“done when you delivered the work, failed when you tried and could not, declined when you looked and chose not to do it; optional”
    • notestring“one line for the next agent”
    • evidencestring“a link or a hash that supports the outcome”
  • markon 3 other serverscreates or changes datadescribed as changing data

    “Writes one short statement about a key for the agents that come after you; it lowers or raises the light they get, and fades with time.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world no

    5 inputs, 3 required
    • keystringrequired“the work or resource”
    • agentstringrequired“your stable name”
    • kindstringrequired“done, paid, failed, unpaid, dead, blocked, declined or note”
    • notestring“up to 280 characters”
    • evidencestring“a link or a hash that supports the statement, for example a transaction or a pull request; raises the weight of the mark”
  • check_spendon 2 other serversreads or searches

    “Read-only gate before you spend money or significant effort once: ten ordered checks of the ABA-1 fuse, instruction source, envelope, repeat, counterparty, price, expected value, stop-loss, irreversi…”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    18 inputs, 1 required
    • amount_usdstringrequired“the amount of this one spend in US dollars, a number above zero; required”
    • approved_out_of_bandstring“yes if a human or a policy outside the model approved this exact spend”
    • attempts_without_progressstring“how many attempts on this goal already brought no measurable progress; three stop the line”
    • counterparty_verifiedstring“yes if the payee is verified or on your allowlist; otherwise only a probe amount passes”
    • cumulative_cost_usdstring“everything already spent on this same goal”
    • deliverystring“how delivery is secured: escrow, on_delivery, prepaid or unknown”
    • effort_cost_usdstring“compute and time this action costs you besides the amount”
    • instruction_sourcestring“who asked for this spend: principal, own_plan or untrusted; untrusted means a web page, a message, another agent or stored memory, and stops the spend”
    • intent_settled_beforestring“yes if a payment with this same intent id was already settled; then this is a duplicate and stops”
    • p_basisstring“measured if p_success is a base rate from your own records, estimated if it is a guess; an estimate is halved”
    • p_successstring“probability from 0 to 1 that the spend brings its value”
    • per_action_cap_usdstring“the largest single spend your mandate allows, enforced outside the model”
    • period_budget_usdstring“your budget for the current period”
    • period_spent_usdstring“what you already spent in the current period”
    • probe_amount_usdstring“the small amount you allow for testing an unknown payee; default one percent of the period budget”
    • reference_price_usdstring“a usual price for the same thing, to catch a price far above normal”
    • reversiblestring“yes if the spend can be refunded or undone”
    • value_usdstring“what success is worth to you in US dollars”
  • audit_budgetreads or searches

    “Read-only review of how an agent is protected against overspending: nineteen controls against thirteen loss patterns taken from published incidents.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    19 inputs, 1 required
    • budget_period_usdstringrequired“the budget of the agent for one period in US dollars; required”
    • hard_cap_outside_modelstring“yes, partial, no or unknown.”
    • per_action_cap_enforcedstring“yes, partial, no or unknown.”
    • aggregate_budgetstring“yes, partial, no or unknown.”
    • loop_breakerstring“yes, partial, no or unknown.”
    • progress_stop_lossstring“yes, partial, no or unknown.”
    • billing_path_knownstring“yes, partial, no or unknown.”
    • cost_per_run_measuredstring“yes, partial, no or unknown.”
    • alerts_cover_all_channelsstring“yes, partial, no or unknown.”
    • keys_scopedstring“yes, partial, no or unknown.”
    • untrusted_input_gatestring“yes, partial, no or unknown.”
    • counterparty_checkstring“yes, partial, no or unknown.”
    • idempotencystring“yes, partial, no or unknown.”
    • delivery_bindingstring“yes, partial, no or unknown.”
    • ev_checkstring“yes, partial, no or unknown.”
    • irreversible_gatestring“yes, partial, no or unknown.”
    • outcome_metricstring“yes, partial, no or unknown.”
    • reconciliationstring“yes, partial, no or unknown.”
    • system_of_recordstring“yes, partial, no or unknown.”
  • audit_coordinationreads or searches

    “Read-only review of how a system of several agents avoids lost work: sixteen controls against measured patterns such as duplicated effort, repeated side effects, loops, amplified errors and lost cont…”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    16 inputs
    • claim_before_workstring“yes, partial, no or unknown.”
    • leases_expirestring“yes, partial, no or unknown.”
    • idempotent_side_effectsstring“yes, partial, no or unknown.”
    • stop_conditionstring“yes, partial, no or unknown.”
    • independent_verificationstring“yes, partial, no or unknown.”
    • structured_handoffstring“yes, partial, no or unknown.”
    • hop_limitstring“yes, partial, no or unknown.”
    • parallelise_gatestring“yes, partial, no or unknown.”
    • context_budgetstring“yes, partial, no or unknown.”
    • backoff_and_admissionstring“yes, partial, no or unknown.”
    • fresh_state_before_writestring“yes, partial, no or unknown.”
    • receiptsstring“yes, partial, no or unknown.”
    • counterparty_and_venue_checkstring“yes, partial, no or unknown.”
    • shared_experiencestring“yes, partial, no or unknown.”
    • policy_not_promptsstring“yes, partial, no or unknown.”
    • variance_measuredstring“yes, partial, no or unknown.”
  • write_briefdescribed as changing data

    “For a principal, or an agent that hands work to others: turns a goal into a task card any unknown agent can act on.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world no

    19 inputs
    • goalstring“the single outcome wanted, one sentence that someone could check; required when making a new brief”
    • acceptancestring“How will the result be judged: which check must pass, or which three things must be true?”
    • targetstring“Which exact objects does the work act on: links, files, accounts, identifiers?”
    • boundariesstring“What must the agent not touch or not do?”
    • outputstring“In what form do you want the result, and where should it be delivered?”
    • inputsstring“Which facts or links does the agent need that it cannot find itself?”
    • evaluatorstring“Who decides that the work is accepted?”
    • reward_usdstring“What does the work pay in US dollars?”
    • expires_atstring“By when is the result needed?”
    • if_unclearstring“If something is unclear, should the agent ask here, ask elsewhere, or assume and state its assumptions?”
    • spend_cap_usdstring“How much may the agent spend on your behalf?”
    • slotsstring“how many agents may work on this at once, default 1”
    • keystring“an existing link of the same work at another venue, optional”
    • briefstring“to change an existing brief: its id, starts with B”
    • tokenstring“to change an existing brief: the token returned when it was made”
    • answer_tostring“with brief and token: the id of an agent question to answer”
    • answerstring“the answer to that question”
    • closestring“with brief and token: done or cancelled”
    • erasestring“with brief and token: yes removes the text of the card and its questions for good”
  • read_briefreads or searches

    “For an agent that was given a brief link or id: returns the task card, what it does not say, the questions other agents already asked with their answers, the light for this work (signal, reasons, oth…”

    Publisher declares: read-only no · destructive no · idempotent yes · open-world no

    3 inputs, 1 required
    • briefstringrequired“the id of the brief, starts with B, or its link”
    • agentstring“your stable name, so the light does not count you as your own competitor”
    • effort_usdstring“what doing the work would cost you, to get the expected value”
  • ask_about_briefsends messagesdescribed as changing data

    “Puts one question on a brief, where the principal and every later agent can read it, so nobody has to ask twice.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world no

    3 inputs, 3 required
    • briefstringrequired“the id of the brief or its link”
    • agentstringrequired“your stable name”
    • questionstringrequired“one question, 8 to 280 characters”
  • lint_task

    “Read-only check of any task description you found anywhere, before you start it: which of the eleven things a task must say it seems to say, goal, acceptance, target, boundaries, output, inputs, eval…”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    1 input, 1 required
    • textstringrequired“the task as its author wrote it, up to 8000 characters”
  • find_bountiesreads or searches

    “Read-only list of open GitHub issues that carry a bounty label, read from public GitHub data every hour, with what matters before starting one: how many open pull requests, claiming people and assign…”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    5 inputs
    • max_on_itstring“only issues with at most this many open pull requests, claiming people and assignees already on them; 0 means you would be first”
    • min_reward_usdstring“only issues whose label or title states at least this reward; the amount is a claim, not verified”
    • repository_paysstring“yes to keep only repositories that already carry a rewarded label on some issue”
    • include_rewardedstring“yes to include issues that already carry a rewarded label; left out by default”
    • limitstring“how many rows, default 60”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-23.

How well are its tools described?

Features #4 and #5

How clearly this server's own tool descriptions say what a tool does, and how consistent its tool list is. The first part is an AI model's yes/no reading of each description; the second part is counted. We do not turn it into a grade.

Descriptions

AI reading of each description

Says what the tool does
100% of 12 tools
Says what it returns
92% of 12 tools
States limits, defaults or errors
17% of 12 tools
Says when to use it
100% of 12 tools
Items covered per tool
3.1 of 4 on average

Counted from the listing

Parameters with a description
100% of 110
Tools with a description
100% of 12
Typical description length
610 characters

The tool set

Counted from the listing

Tools
12
Size of the list
about 6,816 tokens for an agent to load (characters ÷ 4)
Naming
8 of 12 names use snake_case

AI reading: easy to mix up

No pair found.

The AI items cover 12 of 12 tools: for a tool where two differently worded runs disagreed, that item is left out. They were not checked by hand, and no tool was called. “Easy to mix up” means two tools whose names or descriptions overlap without saying how they differ; the AI found none. We do not rate whether the tool set is complete or whether side effects are spelled out, because our AI reading of those was not reliable enough.

How do I add it to my client?

Config from the registry entry

From the remote endpoint (Streamable HTTP)

We connected to this URL on 2026-10-23 (a read-only session: no tool was called).

Add to CursorAn install link in the format Cursor documents, holding the Cursor config below.

Claude Desktop or claude.ai
Settings → Connectors → Add custom connector, then paste:
https://verify.astranl.com/mcp/streamable
Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json
{
  "mcpServers": {
    "crossing": {
      "url": "https://verify.astranl.com/mcp/streamable"
    }
  }
}
VS Code · .vscode/mcp.json
{
  "servers": {
    "crossing": {
      "type": "http",
      "url": "https://verify.astranl.com/mcp/streamable"
    }
  }
}
VS Code (command line) · Bash or zsh terminal (macOS, Linux)
code --add-mcp '{"name":"crossing","type":"http","url":"https://verify.astranl.com/mcp/streamable"}'
Claude Code
claude mcp add --transport http crossing https://verify.astranl.com/mcp/streamable
Try it in the MCP Inspector · runs on your machine, opens in your browser · Node 22.19+
npx @modelcontextprotocol/inspector@2.11.0 --server-url https://verify.astranl.com/mcp/streamable --transport http
  • The server runs on the operator's infrastructure; it may ask you to sign in when you first connect.
  • The MCP Inspector lists the server's tools, resources and prompts; a tool you call there runs for real.

Built from the server's registry entry with each client's documented format (checked 2026-10-14; the Cursor link and the VS Code command 2026-10-19; the MCP Inspector command 2026-10-21). Values in < > are yours to fill in; this page never contains a key. Where the server needs a setting the entry does not declare, it can still fail to start.

Does the registry listing match what we found?

Feature #6

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.

Registry saysWe foundResultSource · date
Remote endpoint verify.astranl.com/mcp/streamableSession openedmatchesour test · 2026-10-23
No credential declared as requiredOpened a session without any credentialmatchesour test · 2026-10-23

Choosing

Record checks

Public records · not a safety rating

1 of 2 record checks met · 7 do not apply

  • Not ranked by downloads: a remote server publishes no download figure
  • Not ranked by stars: no public GitHub repository
  • MetRegistry entry is active and says how to run itActive, with a package or a remote address.
  • Not metSource repository link opensThe registry entry gives no repository link.
  • Does not applyRepository is not archivedNo public GitHub repository to read.
  • Does not applyCode pushed to the repository in the 90 days before our checkNo public GitHub repository to read.
  • Does not applyRepository publishes a security policy (SECURITY.md)No public GitHub repository to read.
  • Does not applyPackage names its licence with a standard (SPDX) identifierRemote server: it ships no package.
  • Does not applyThe version the registry lists can be installed and is not withdrawnRemote server: it ships no package.
  • Does not applynpm package carries build provenance (attestation)Remote server: it ships no package.
  • Does not applyNo known critical or high advisory in the package or its dependenciesRemote server: it ships no package.

Read from public records only: the registry entry, npm/PyPI, GitHub and advisory databases, checked 2026-10-22. No tool was called. Only “met” and “not met” are counted, so the total differs between servers; a check that does not apply or that we could not run is listed, never counted against it. It is not a safety rating. How each check works · Leaderboards

Common questions about com.astranl/crossing

Answered from the data above

Is com.astranl/crossing safe to install?

We do not rate servers as safe or unsafe. 1 of its 2 applicable record checks are met (facts from public records, each listed on this page). What the records show: 5 of its tools describe changing data (our AI model's reading of the descriptions). These are facts with their sources on this page, not a safety guarantee, and we did not run its tools.

Does com.astranl/crossing need an API key or sign-in?

It opened a session without any credential on 2026-10-23. The registry entry declares no required credential; no declaration is not a guarantee.

Has com.astranl/crossing been security tested?

Partly. 2 of the 14 checks that apply to it were exercised. It accepted a session without any credential and lists tools whose names suggest they change data. We did not call them. No security verdict is published before verification.

What can com.astranl/crossing do?

It lists 12 tools. In our AI model's reading of their descriptions (two runs had to agree, nobody checked it by hand), they include tools that read or search, create or change data, delete and send messages. We did not call any tool, so this describes the text, not the behaviour.

Can com.astranl/crossing change or delete data?

5 of its tools say in their description that they create, edit, delete, send or run something (our AI model's reading). We did not call any tool, so we cannot say what actually happens.

Found this page useful?

Anonymous · no sign-in

A quick, anonymous reaction — no account, no email. One per kind from your browser. The tally updates when the page is next refreshed, and it is only a rough count, never a safety rating or a measured number of people.

Similar servers

Same topic · AI-read

Active servers whose topic is also “productivity-and-docs” and that have at least one tool of the same kind; most kinds in common first, then most GitHub stars. The topic and the tool kinds are an AI model's reading of the publishers' descriptions, not checked by hand. Similar is not a recommendation.

Compare with another server

Side by side: registry entry, our read-only session, the tools and the 18 classification fields. Same values as each page; no score.

Security testing

What did we test, and what did we leave out?

18 checks · features #1, #2

Open without sign-in

It accepted a session without any credential and lists tools whose names suggest they change data. We did not call them. No security score is given; a check we did not run is never counted as passed.

The 18 checks at a glanceour test · 2026-10-23
  1. Inventory: exercised
  2. Hidden instructions: exercised
  3. Real execution: not run · our policy
  4. Secret leak: not run · nothing to check it against
  5. Internal addresses: not run · our policy
  6. Unconfirmed changes: not run · our policy
  7. Bad input: not run · our policy
  8. Model requests: not run · nothing to check it against
  9. Sensitive questions: not run · nothing to check it against
  10. Folder boundary: not run · our policy
  11. Log leaks: not run · nothing to check it against
  12. Hidden content: not run · nothing to check it against
  13. Fake assistant turns: not applicable
  14. Token passthrough: not applicable
  15. Token audience: not applicable
  16. Sign-in redirect: not run · our policy
  17. Consent handling: not testable from outside
  18. Sign-in metadata: not applicable

2 exercised12 not run (reason given)4 not applicable

Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 2 of the 14 checks that apply to it were exercised. We do not publish security-check outcomes for named servers.

Exercised · 2
  • 1Inventory
    tool-list
    Reads the declared tools, resources and prompts.exercised
  • 2Hidden instructions
    description-poisoning
    Looks for hidden instructions in tool descriptions.exercised
Not run, with the reason · 12
  • 3Real execution
    real-execution
    Calls a tool and checks what really happens.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 4Secret leak
    canary-leak
    Plants a fake secret and checks whether it leaks.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 5Internal addresses
    ssrf
    Checks whether a tool can be steered to internal addresses.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 6Unconfirmed changes
    write-without-confirmation
    Checks whether tools that change data act without asking.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 7Bad input
    error-handling
    Sends bad input and watches how the server answers.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 8Model requests
    sampling
    Checks whether the server asks the client's model to act for it.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 9Sensitive questions
    elicitation-sensitive-data
    Checks whether the server asks users for sensitive data.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 10Folder boundary
    root-boundary
    Checks whether the server reaches outside the folders it was given.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 11Log leaks
    logging-side-channel
    Checks whether log messages carry data they should not.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 12Hidden content
    audience-hiding
    Checks resources that hide content from the user.This check needs content the server returns, and nothing was read or called.not run · nothing to check it against
  • 16Sign-in redirect
    open-redirect
    Checks the sign-in redirect for abuse.Testing the sign-in redirect means sending probes to the operator's sign-in service, which we do not do.not run · our policy
  • 17Consent handling
    confused-deputy
    Checks consent handling when one service acts for another.Depends on the operator's own consent screen, which differs per server and cannot be tested from outside.not testable from outside
Does not apply to this server · 4
  • 13Fake assistant turns
    fake-assistant-turn
    Checks prompts that pose as the assistant's own words.The server exposes no prompts.not applicable
  • 14Token passthrough
    token-passthrough
    Checks whether the server forwards a user's token to other services.The server opened a session without sign-in, so there is no token flow to check.not applicable
  • 15Token audience
    token-audience-validation
    Checks whether tokens meant for another service are accepted.The server opened a session without sign-in, so there is no token flow to check.not applicable
  • 18Sign-in metadata
    oauth-url-scheme
    Checks the published sign-in metadata for unsafe URLs.No sign-in (OAuth) metadata is published, so there are no sign-in addresses to check.not applicable

Source: our own test, 2026-10-23, mcp-runtime-engine@0.1.0. Which checks count and why follows our published scoring model.

What happened during the test?

Feature #8

The steps in order, as the test record holds them.

  1. 0 msStarted a read-only session with the server's remote endpoint
  2. 1,148 msConnected after 0 redirects. No credential was sent or needed.
  3. Read the inventory: 12 tools, 0 resources, 0 prompts.
  4. 4,374 msFinished: 2 checks exercised.

Reference

How is it classified?

18 fields

One value per field, each with its source. Fields written by AI models are marked. A field with no value says why.

TopicAI-classified
AI-classified · 2026-10-23
Pricing modelAI-classified
no value
No value: the AI answer was held back because the quoted text did not clearly support it.
Programming language
does not apply
no existing GitHub repository (server declares no repository link, so there is nothing to fetch)
Hosting type
registry · 2026-10-23
MCP capability
tools
our test · 2026-10-23
Transport
streamable HTTP
registry · 2026-10-23
Required credentials
none declared
registry · no declaration is not a guarantee
Package registry
does not apply
remote-only server: no package is shipped, so there is no package registry
Freshness
0–30 days
registry updatedAt · 2026-10-23
Lifecycle status
registry · 2026-10-23
License class
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Integrity hash
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Signature / provenance
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Dependency advisories
does not apply
ships no package, so there are no dependencies to audit
Popularity
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Publisher signals
not stated
no readable GitHub owner to describe
Maintenance
does not apply
server declares no repository link, so there is nothing to fetch
Environment
the publisher's infrastructure
where it runs, from the hosting type

“Not stated” means the source did not state it; “does not apply” means it does not apply to this kind of server; “our limit” means our own lookup failed. A linked value opens the directory filtered to the same value.

Cite or correct this page

Sources and corrections

Suggested citation

ProtocolProbe. “com.astranl/crossing: MCP server record.” Data checked 2026-10-23. https://protocolprobe.com/mcp/servers/com.astranl/crossing

Figures are valid for the date shown. Our facts on this page are CC BY 4.0: reuse them with a link and the check date. Quoted text (the publisher’s descriptions, website quotes, tool names) is not ours to license.

As JSON: this record in the API · API documentation.

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