x402 Toolbox
REMOTE · X402-TOOLBOX.SWIFTBOTLAB.WORKERS.DEV
62 pay-per-call web, DNS, EVM and data tools. x402 USDC on Base, $0.003-$0.02 per call, no signup.
Available components
Last scanned (6 hours ago)
Scores higher than 52% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Developer Tools
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security63
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one. See how to fix → View diagnostics → Partial
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 405, which proves neither a plaintext path nor enforcement. View diagnostics → Unverified
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability64
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 8018 tokens (~129/item across 62 items; 62 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management30
- Stability observed for 9 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage77
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 30% of tool parameters carry a description.Partial
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "cidr_aggregate" implies "merge" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
- An AI judge read all 63 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 5 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Oct 26 +1
- Stability: unverified → 0.03 ▲ functional
- 27 Oct 26 61
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://x402-toolbox.swiftbotlab.workers.dev/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=swiftbotlab.workers.dev | CN=YE1,O=Let's Encrypt,C=US | 19 Oct 2026 | 17 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 662875c942ee25dc5ba72d7ad82445b00c6 |
| SANs: *.swiftbotlab.workers.dev, swiftbotlab.workers.dev | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of x402-toolbox.swiftbotlab.workers.dev. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| dev. | present | 60074 | 8 | Verified |
| workers.dev. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| x-content-type-options | nosniff |
| referrer-policy | no-referrer |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://x402-toolbox.swiftbotlab.workers.dev/mcp | Verified | 200 | |
| http (plaintext) | http://x402-toolbox.swiftbotlab.workers.dev/mcp | Inconclusive | 405 |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
unit_convert Convert between units: length, mass, volume, area, speed, time, data, pressure, energy, power, temperature, angle ~134
Convert between units: length, mass, volume, area, speed, time, data, pressure, energy, power, temperature, angle. Exact-factor conversion across 12 dimensions and 140+ units (SI, imperial, US customary, IEC binary data sizes). Temperature handles offsets (C, F, K, R). Pass to=all to get every unit of the same dimension. Price: $0.003 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | – |
| to | string | yes | Target unit, or "all" |
| value | number | yes | – |
No output schema declared.
No examples provided.
url_parse Parse, normalize and clean a URL (components, query params, punycode, tracking params removed) ~121
Parse, normalize and clean a URL (components, query params, punycode, tracking params removed). Splits a URL into scheme, host (Unicode and punycode), port, path, query parameters and fragment; returns a normalized form (lowercase host, default port dropped, sorted query) and a clean form with tracking parameters (utm_*, fbclid, gclid, ...) removed. No network access. Price: $0.003 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | – |
No output schema declared.
No examples provided.
user_agent Parse a User-Agent: browser, engine, OS, device type, and known bots / AI crawlers ~126
Parse a User-Agent: browser, engine, OS, device type, and known bots / AI crawlers. Identifies browser and version, rendering engine, OS and version, device class (desktop, mobile, tablet, tv) and 35+ known bots: search engines, AI crawlers (GPTBot, ClaudeBot, PerplexityBot, CCBot, ...), social preview fetchers, SEO tools, monitors and HTTP libraries. Price: $0.003 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| ua | string | yes | – |
No output schema declared.
No examples provided.
uuid Generate UUIDs (v4 random, v7 time-ordered) or parse/validate one ~129
Generate UUIDs (v4 random, v7 time-ordered) or parse/validate one. With no "uuid" parameter: generates up to 100 UUIDs of version 4 or 7 using a CSPRNG. With "uuid": validates it and returns the canonical form, version, variant and embedded timestamp (v1, v6, v7). Price: $0.003 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | – |
| uuid | string | – | UUID to parse (optional) |
| version | integer | – | – |
No output schema declared.
No examples provided.
web_extract Fetch a web page and return clean main text and Markdown plus title and metadata ~153
Fetch a web page and return clean main text and Markdown plus title and metadata. Fetches a public URL (redirects followed and re-checked) and converts the HTML to clean text and Markdown: main/article content first, navigation/footers/scripts removed, links made absolute. Also returns title, description, language, canonical URL, headings and word count. Plain-text and JSON responses are returned as-is. Price: $0.01 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | – |
| maxChars | integer | – | – |
| mode | string | – | "main" keeps the article/main region and drops nav/header/footer |
| url | string | yes | – |
No output schema declared.
No examples provided.
web_headers HTTP status, response headers, redirect chain, timing and a security-header audit ~141
HTTP status, response headers, redirect chain, timing and a security-header audit. Requests a URL (HEAD or GET) and returns the final status, every redirect hop, response headers, latency and an audit of security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/CORP) with a grade, plus cookie flags (Secure, HttpOnly, SameSite) without cookie values. Price: $0.005 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| method | string | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
web_links All links on a page, absolute, de-duplicated, split into internal and external ~121
All links on a page, absolute, de-duplicated, split into internal and external. Fetches a page and returns every <a href> as an absolute URL with its anchor text and rel, de-duplicated, marked internal or external (same registrable host), plus counts of nofollow links, mailto/tel links and images. Price: $0.008 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| filter | string | – | – |
| limit | integer | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
web_metadata Page metadata for link previews and SEO: title, description, OpenGraph, Twitter card, JSON-LD, favicon ~118
Page metadata for link previews and SEO: title, description, OpenGraph, Twitter card, JSON-LD, favicon. Fetches a URL and returns title, meta description, canonical, language, robots, OpenGraph and Twitter-card tags, JSON-LD blocks, favicon, RSS/Atom feeds, hreflang alternates and a short SEO checklist (title/description length, canonical, h1 count). Price: $0.008 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | – |
No output schema declared.
No examples provided.
web_robots Is a URL allowed for a crawler by robots.txt? Rules, crawl-delay and sitemaps ~131
Is a URL allowed for a crawler by robots.txt? Rules, crawl-delay and sitemaps. Fetches the site's /robots.txt and evaluates a URL path for a user-agent with RFC 9309 matching (longest match wins, * and $ wildcards). Returns allowed/disallowed, the deciding rule, crawl-delay, declared sitemaps and the agent groups present. Price: $0.005 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | Page URL (its origin's robots.txt is read) |
| userAgent | string | – | – |
No output schema declared.
No examples provided.
web_sitemap Read a sitemap.xml (or a site's default sitemap): URLs with lastmod, child sitemaps ~131
Read a sitemap.xml (or a site's default sitemap): URLs with lastmod, child sitemaps. Fetches a sitemap URL, or for a bare site URL tries the sitemaps declared in robots.txt and then /sitemap.xml. Returns page URLs with lastmod/changefreq/priority, or the child sitemaps of a sitemap index. Up to 5,000 entries; gzip sitemaps are not decoded. Price: $0.008 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
x402_check Probe an x402 endpoint: alive? what does it charge, on which chain, to whom? Is its 402 valid? ~133
Probe an x402 endpoint: alive? what does it charge, on which chain, to whom? Is its 402 valid?. Calls a paid URL without paying and inspects the 402 challenge: x402 version, every accepted payment option (scheme, network, asset, USDC price in dollars, payTo, timeout), resource description, Bazaar discovery metadata, latency, and a list of spec problems that break clients. Nothing is paid. Price: $0.01 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| method | string | – | – |
| url | string | yes | – |
No output schema declared.
No examples provided.
x402_search Search the x402 Bazaar catalogs for paid APIs by keyword, with prices ~133
Search the x402 Bazaar catalogs for paid APIs by keyword, with prices. Searches the public discovery catalogs of the Coinbase CDP facilitator and the PayAI facilitator, merges and de-duplicates the results and returns each resource URL with its description, method, network and USD price. Filter by network or maximum price. Price: $0.01 USDC per call via x402 (eip155:8453).
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| maxPriceUsd | number | – | – |
| network | string | – | e.g. eip155:8453 or base |
| query | string | yes | – |
No output schema declared.
No examples provided.
How do I install the x402 Toolbox MCP server?
x402 Toolbox is a hosted endpoint at https://x402-toolbox.swiftbotlab.workers.dev/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · x402-toolbox.swiftbotlab.workers.dev
claude mcp add --transport http swiftbotlab-x402-toolbox 'https://x402-toolbox.swiftbotlab.workers.dev/mcp'
What is the x402 Toolbox MCP server?
x402 Toolbox is an MCP server listed in the public MCP registry as io.github.swiftbotlab/x402-toolbox. 62 pay-per-call web, DNS, EVM and data tools. x402 USDC on Base, $0.003-$0.02 per call, no signup. This page covers its hosted endpoint (https://x402-toolbox.swiftbotlab.workers.dev/mcp).
Is the x402 Toolbox MCP server safe to use?
x402 Toolbox scores 66 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the x402 Toolbox MCP server expose?
x402 Toolbox exposes 62 tools: dns_lookup, dns_mx, dns_reverse, dns_spf, dns_dmarc, and 57 more. Their descriptions and schemas cost roughly 7,918 tokens of context every time the server is loaded.
Does the x402 Toolbox MCP server require authentication?
No. We connected to x402 Toolbox without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the x402 Toolbox MCP server still maintained?
x402 Toolbox is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.