KnownFix is a remote MCP server that gives an AI agent 17 tools, among them audit_endpoint, audit_theme, check_request. It answers at https://knownfix-backend-28.b-hash88.deno.net/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 11 September 2026; the last check, on 21 October 2026, succeeded.
Developer fixes, free skills, browser tools and scoped technical services over MCP.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
audit_endpoint | Readiness audit of any agent-facing URL: MCP handshake, CORS, discovery docs (llms.txt, mcp.json), and payment-offer behaviour. First call with url alone for the FREE grade and failing-check list. For the full findings and remediations, cal Inputs: paymentTx, paymentOffer, url |
audit_theme | Run a read-only theme audit on a public HTTP(S) page, free in full. Fetches but never modifies the page, then checks inline style CSS for brace errors, token gaps, incomplete dark themes, missing body backgrounds, and WCAG body-text contras Inputs: url |
check_request | Check a private ticket from request_fix. Returns pending, declined, not-eligible, redeemed, or the full fix free once an eligible new fix is stocked. This call may atomically consume the ticket's one-time delivery, so save the returned body Inputs: ticket |
check_service_order | Check a private service order by its svc_ ticket. With paymentTx and paymentOffer, atomically confirms exactly one matching Base payment and moves the order into review. Without payment fields, returns current status; once complete, it retu Inputs: ticket, paymentTx, paymentOffer |
check_submission | Check the private submissionId returned by submit_fix. Returns only pending-review, accepted, declined, or cataloged state and, when cataloged, the stocked fix id. It never returns submitted text or contributor details and creates no side e Inputs: submissionId |
get_fix | Get or redeem a fix after search_fixes or list_catalog identifies the id. Free samples return immediately. For a paid fix, call with the id alone to receive a free diagnosis preview, confidence and compatibility, dollar price, signed Base P Inputs: id, paymentTx, paymentOffer |
get_offer | Create or refresh a one-hour signed bearer offer for a chosen skill, bundle, audit, or fix. Do not call this after a paid search_fixes result or an unpaid get_fix/get_skill result because those responses already include both payment rails. Inputs: productType, productId, currency |
get_skill | Get or redeem a premium skill or multi-fix bundle after choosing with list_skills. Call with the id alone to receive the free outline, dollar price, signed Base Pay USDC and exact-ETH offers, and one pay-and-redeem action. After payment, ca Inputs: id, paymentTx, paymentOffer |
list_catalog | Browse every stocked error signature, title, tag, confidence label, and free-sample flag without ranking or creating an offer. Use search_fixes instead when diagnosing a specific error; it returns the best match and any purchase-ready check |
list_merch | Browse the KnownFix Merch Store. Returns fixed product ids, lines, formats, and privacy-safe tracked links to the human Fourthwall storefront. Fourthwall shows the current localized price, options, tax, shipping, and availability. This tool |
list_services | Compare KnownFix's $49 website first-look report and deeper website, public-codebase, agent-commerce, and release-pipeline reviews. Returns bounded scope, deliverables, delivery time, limitations, sample-report links where available, and ex |
list_skills | Compare premium skills and multi-fix bundles. Returns current ids, free outlines, provenance, formats, and exact prices while full bodies remain paid. Call get_skill with a chosen id for signed USDC and ETH checkout; use search_fixes for a |
order_service | Create a private ticket and signed Base USDC/ETH checkout for one published professional service. Accepts public HTTPS websites or public GitHub repositories only. Never include credentials, tokens, secrets, private repository URLs, or conf Inputs: serviceId, targetUrl, notes, publishTarget, authorizationConfirmed |
report_checkout_blocker | Use only after a signed KnownFix checkout cannot proceed before a payment hash exists. Reports one closed-vocabulary blocker tied to the valid offer; at most one aggregate count is accepted per offer. No wallet address, token, transaction h Inputs: productType, productId, paymentOffer, blocker |
request_fix | Ask for a fix this store does not have yet. If we already stock it (matched on either field) you get the id straight back and no ticket. Otherwise you get a ticket; when we stock THAT fix, check_request returns it to you FREE, once. A ticke Inputs: signature, context, publish |
search_fixes | Use this first for an exact error or distinctive symptom. Returns up to three confident ranked matches. A free top match includes the full fix. A paid top match includes a free diagnosis, confidence and compatibility, dollar price, signed U Inputs: query |
submit_fix | Offer a fix for the catalog. Submissions are reviewed by the operator before listing; include a reproduction so the fix can be verified rather than trusted. Returns a private submissionId; save it and call check_submission for pending, acce Inputs: title, signature, cause, fix, reproduction, contributor |
Every block below points at https://knownfix-backend-28.b-hash88.deno.net/mcp. Pick your client and copy.
claude mcp add --transport http knownfix https://knownfix-backend-28.b-hash88.deno.net/mcp
{
"mcpServers": {
"knownfix": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://knownfix-backend-28.b-hash88.deno.net/mcp"]
}
}
}{
"mcpServers": {
"knownfix": {
"url": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}{
"servers": {
"knownfix": {
"type": "http",
"url": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}{
"context_servers": {
"knownfix": {
"url": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}{
"mcpServers": {
"knownfix": {
"serverUrl": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}{
"mcpServers": {
"knownfix": {
"url": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}name: KnownFix
version: 0.0.1
schema: v1
mcpServers:
- name: KnownFix
type: streamable-http
url: https://knownfix-backend-28.b-hash88.deno.net/mcp{
"mcpServers": {
"knownfix": {
"httpUrl": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}{
"mcpServers": {
"knownfix": {
"type": "http",
"url": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}{
"mcpServers": {
"knownfix": {
"url": "https://knownfix-backend-28.b-hash88.deno.net/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fknownfix-backend-28.b-hash88.deno.net%2Fmcp&type=streamable_http&id=knownfix&name=KnownFix
It answered our last check on 21 October 2026 in 1353 ms. Over 6 checks since 11 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
17, as returned by the server's own tools/list on 13 September 2026: audit_endpoint, audit_theme, check_request, check_service_order, check_submission, get_fix, get_offer, get_skill, and 9 more.
It answered our last check on 21 October 2026 in 1353 ms. Over 6 checks since 11 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://knownfix-backend-28.b-hash88.deno.net/mcp. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.b-hash88. Endpoint host: knownfix-backend-28.b-hash88.deno.net. ARD identifier: urn:air:io.github.b-hash88:mcp:knownfix.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.