Pack local or remote codebases into AI-friendly files that LLMs and coding agents can read or search
Nothing to run from here
FactGrid (Renamed to FactReason) is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
11
tools declared
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trust score
remote
at its publisher
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calls last 7d
What it does
Renamed to FactReason. Now published as io.github.factreason/factreason — please use that entry.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http factgrid-renamed-to-factreason-mcp https://factgrid.co.uk/mcp
# 2 — ask your agent for something these tools do
# factreason_package_upgrade_advisory, factreason_api_breaking_changes, factreason_api_schema and 8 more
FactGrid (Renamed to FactReason) costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Publishernot claimed
FAAll 1 server
factgridai1 server
1 category
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Installation
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
Claude Codedeclared by this listing
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http factgrid-renamed-to-factreason-mcp https://factgrid.co.uk/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
Free on mcprush, and it answers at its publisher’s own address: this marketplace is not in the path, so there is no key of ours to hold and no card to add.
What it writes
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
What you approve
11 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Compare two exact published npm or PyPI versions and return publisher-declared registry metadata changes, including yanks, exports, module format, runtime floors, peers, and licences, with before/after evidence. Set responseFormat="compact" for tokenizer-measured context savings; the backward-compatible default is "full". This is a read-only metered lookup; misses are never billed and every API ke
| Parameter | Type | Required | Notes |
|---|---|---|---|
| registry | string | yes | Registry containing both package versions |
| name | string | yes | Exact package name, e.g. "chalk" or "urllib3" |
| from | string | yes | Exact currently installed version, e.g. "4.1.2" |
| to | string | yes | Exact target version, e.g. "5.0.0" |
| responseFormat | string | no | Use compact to remove repeated prose and fields while retaining evidence; full preserves the legacy response contract |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Compare two versions of a third-party API and return breaking changes, including removed endpoints, parameter type changes, removed request body fields, and migration guides. Use factreason_package_upgrade_advisory for npm or PyPI packages.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| service | string | yes | Third-party API service, e.g. "Stripe" or "OpenAI" |
| fromVersion | string | no | Optional exact version currently targeted |
| toVersion | string | no | Optional exact version being evaluated |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Search exact request and response schemas for third-party API endpoints. Pass service alone to list its indexed endpoints, add query to narrow by path or operation, or use query alone across services; returns matches or nearest services. Uses metered access and does not modify source data. Prefer factreason_integration_brief for one callable request.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| service | string | no | Optional service filter, e.g. "Stripe" |
| query | string | no | Optional endpoint path or operation, e.g. "payment_intents" |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Compile one callable third-party API brief: base URL, auth scheme, required parameters and types, request body, and documented response codes. Service is required and endpoint optionally narrows the operation. Set responseFormat="compact" for tokenizer-measured context savings; the backward-compatible default returns the full brief plus compact form. Uses metered access. Prefer factreason_api_sche
| Parameter | Type | Required | Notes |
|---|---|---|---|
| service | string | yes | Third-party API service, e.g. "Stripe" or "Twilio" |
| endpoint | string | no | Optional path or operation fragment used to select one call |
| responseFormat | string | no | Use compact for the callable facts only; full preserves the legacy brief response |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Find third-party APIs for a capability when the provider is unknown. Supply a concise capability such as "sms" or "manage DNS"; returns ranked services, example endpoints, and a next step. Uses metered access. When the provider is already known, call factreason_integration_brief instead.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| capability | string | yes | Capability to search for, e.g. "send an SMS" or "charge a card" |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Get a FactReason API key for yourself, instantly, with no human, no signup and no card. Returns a key carrying one-off trial credit that you can spend immediately on any tool. CALL THIS FIRST if you have no key, or as soon as any FactReason tool returns HTTP 402 Payment Required — then retry the original call with the key, passed as that tool's apiKey argument (or as an Authorization: Bearer heade
| Parameter | Type | Required | Notes |
|---|---|---|---|
| string | no | Optional contact address for the key owner. Improves the chance of receiving trial credit and lets the operator reach you about corrections. Never send a human's address without their agreement. |
Create a Stripe Checkout URL for adding prepaid credit to the calling Bearer API key. This creates an external checkout session but does not charge a card. You CANNOT COMPLETE THE PAYMENT YOURSELF, so return the URL to a human, and credit is applied only after they complete payment. Use after HTTP 402 or when balance is low; the tool itself is not metered.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| amountUsd | number | yes | Credit amount in USD; common blocks are 10, 50, and 200 |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Look up electronics component pin assignments, voltage range, package, and alternatives. Pass exact partNumber for one component or query for a capability search; partNumber takes precedence if both are supplied. For exact lookups, set responseFormat="compact" for tokenizer-measured context savings; the backward-compatible default is "full". Uses metered access and returns matches or suggestions.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| partNumber | string | no | Exact part number, e.g. "STM32F401RE" |
| query | string | no | Free-text capability search, e.g. "3.3V ARM MCU with SPI" |
| responseFormat | string | no | Use compact for an exact part lookup; full preserves the legacy data response |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Scan publisher specifications for deprecated endpoints or parameters, sunset dates, and replacement operations. Omit filters for the catalogue-wide view, pass service to limit one API, and add endpoints to check selected paths. Uses metered access when findings exist. Use factreason_api_breaking_changes for broader version-to-version changes.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| service | string | no | Optional service filter, e.g. "Stripe" or "Twilio" |
| endpoints | array | no | Optional endpoint paths to check within the selected service |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Get publisher-declared authentication schemes, scopes, rate-limit headers, and error codes for one third-party API. Returns a structured playbook or nearest service suggestions, and marks undocumented details as unstated rather than guessing. Uses metered access. Prefer factreason_integration_brief when assembling a complete API call.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| service | string | yes | Third-party API service, e.g. "Stripe", "Twilio", or "Cloudflare" |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Create a persistent specification watch for one service; a Bearer API key is required and each key may hold up to 50 watches. Without webhookUrl, read future events from the polling endpoint; with a public HTTP(S) URL, FactReason sends signed POST callbacks after later spec changes. Duplicate or unsafe webhook registrations are rejected. This does not ingest a specification immediately.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| serviceName | string | yes | Service name to watch, e.g. "Stripe" or "SendGrid" |
| webhookUrl | string | no | Optional public HTTP(S) URL for signed change callbacks; omit to poll |
| apiKey | string | no | Your FactReason API key, from factreason_create_key. Pass it here when your MCP client cannot set the Authorization: Bearer header on this connection; if the header is set, omit this. Never pass a key |
Free
$0 forever
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install FactGrid (Renamed to FactReason) or to call it, at any volume.
Call allowance · this installenforced at the gateway
Monthly allowance, in calls
—
—
Alert at 80% · then the tool returns a normal MCP error
Used this month: —
—Grade not published
No rule-by-rule report on file for this release
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
This listing is an address its publisher runs, and you connect to it directly — this marketplace is not in the path. The scanner reads packages and public source, and an address is neither: the repository linked on this page is where this record was collected from, not a copy of what the address serves, so it is not graded in its place. So there is no grade — not a withheld one, an unmeasured one.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 2.0.1.
2.0.1
undated
latestNo release note was published with this version.
—
no reviews yet
Who can review
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Sign in to write one
Any signed-in account that does not publish FactGrid (Renamed to FactReason) can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
No reviews yet
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.