call402 — x402 Agent Services
REMOTE · CALL402.COM
x402 pay-per-call APIs for agents: web search, wallet/token checks, text structuring.
Available components
Last scanned (22 hours ago)
Scores higher than 45% of remote servers
Reachable. Last reached 22 Oct 2026.
Category Crypto and Web3
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 Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 12 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port answered with HTTP 404, 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 Usability68
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 1053 tokens (~87/item across 12 items; 12 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
- Stability check failed: schema churn in the 3 days we've observed: 7 tool removals, 0 breaking changes, 0 auth/transport breaks, 9 additions. See how to fix → Fail
Tool Coverage67
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 0% of tool parameters carry a description.Fail
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 12 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 12 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.
- 22 Oct 26 0
- Schema quality: 99 → 87 ▲ functional
- New tool “hash-tools” functional
- New tool “language-detect” functional
- New tool “sec-company-facts” functional
- New tool “timestamp-convert” functional
- 21 Oct 26 0
- A breaking change shipped without a version bump: still 1.0.0 ▼ security
- Tool “token-quotes” was removed ▼ security
- Tool “token-risk-summary” was removed ▼ security
- Tool “trending-pools” was removed ▼ security
- Tool “wallet-activity-summary” was removed ▼ security
- Tool “weather” was removed ▼ security
- Tool “fx-rates” rewrote its description, which is the text the model reads security
- Schema quality: 110 → 99 ▲ functional
- New tool “domain-lookup” functional
- New tool “fear-greed-index” functional
- New tool “qr-code” functional
- New tool “ssl-check” functional
- New tool “text-extract” functional
- 20 Oct 26 0
- Stability: unverified → fail ▼ security
- A breaking change shipped without a version bump: still 1.0.0 ▼ security
- Tool “web-answer” was removed ▼ security
- Tool “web-search” was removed ▼ security
- Schema quality: 1088 → 884 ▲ functional
- 19 Oct 26 56
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 22 Oct 2026 · Probed https://call402.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=call402.com | CN=YE2,O=Let's Encrypt,C=US | 18 Oct 2026 | 16 Jan 2027 | ECDSA 256 | ECDSA-SHA384 | 56e16440d239df2473efe1b9bd9e31b220d |
| SANs: *.call402.com, call402.com | ||||||
| CN=YE2,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 4df3b15dd6c0784c507cd37b58e6f115 |
| 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 call402.com. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| call402.com. | 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 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://call402.com/mcp | Verified | 200 | |
| http (plaintext) | http://call402.com/mcp | Inconclusive | 404 |
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 →
domain-lookup ~91
Domain one-stop lookup: live DNS records (A, AAAA, CNAME, MX, NS, TXT via DNS-over-HTTPS) plus RDAP registration data (registrar, creation and expiry dates, status, nameservers) assembled from public protocol endpoints on our servers. For domain due diligence, phishing-site checks, counterparty infrastructure review and integration pre-checks.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | – |
No output schema declared.
No examples provided.
email-verify ~94
Email address validation for signup screening, lead cleanup and form verification: syntax check, disposable/temporary-domain detection and a live MX-record lookup for the domain. Returns a deliverability verdict (likely_deliverable, risky, undeliverable, invalid_format) with the MX hosts found. Does not probe individual mailboxes, so catch-all domains may still accept addresses that do not exist.
| Name | Type | Req | Description |
|---|---|---|---|
| string | yes | – |
No output schema declared.
No examples provided.
fear-greed-index ~102
Crypto Fear & Greed Index by alternative.me: current value (0-100) and classification (Extreme Fear, Fear, Neutral, Greed, Extreme Greed) plus optional daily history. The most-cited single market-sentiment gauge for crypto trading agents: position sizing, risk checks and regime detection before trading. Data published by alternative.me for free commercial use with attribution; served from a 30-minute cache.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
No output schema declared.
No examples provided.
fx-rates ~134
Daily foreign-exchange reference rates for the major fiat currencies (USD, EUR, CNY, GBP, JPY, HKD and more) from the European Central Bank via Frankfurter: convert amounts, price in a local currency, or sanity-check a rate before a payment. Give a base currency and optional symbols and amount. Reference rates are published once per working day; they are not live trading quotes. Source: ECB statistics via Frankfurter; the same reference rates are published free of charge by the European Central
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | – | – |
| base | string | – | – |
| symbols | array | – | – |
No output schema declared.
No examples provided.
hash-tools ~56
Run local cryptographic utilities: SHA-256 and SHA-512 hashes, Base64 encode/decode, or a random UUID v4. No upstream service is called.
| Name | Type | Req | Description |
|---|---|---|---|
| op | string | – | – |
| text | string | – | – |
No output schema declared.
No examples provided.
language-detect ~69
Detect the most likely language of text entirely on this server, with ISO 639-1 language code, language name, confidence and alternatives. Supports English, Chinese, Japanese, Korean, Spanish, French, German, Russian, Portuguese and Italian; no upstream request.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | – |
No output schema declared.
No examples provided.
qr-code ~86
Generate a QR code image for any text, URL or payment address: returns SVG markup or a base64-encoded PNG rendered on our own servers (qrcode library, MIT). For agents that produce scannable payment requests, links, addresses or tickets but cannot render images themselves.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | – |
| size | integer | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
sec-company-facts ~85
Summarize a US public company's latest SEC-reported Revenue, NetIncomeLoss and Assets from official EDGAR companyfacts. Look up by ticker, CIK or company name; returns filing dates and fiscal periods. Uses SEC public-domain data with a declared User-Agent.
| Name | Type | Req | Description |
|---|---|---|---|
| cik | string | – | – |
| name | string | – | – |
| ticker | string | – | – |
No output schema declared.
No examples provided.
ssl-check ~77
TLS/SSL certificate check for any public host: issuer, subject, SAN list, validity window, days until expiry, SHA-256 fingerprint and whether the certificate chain verified. Computed by a direct TLS handshake from our own servers. For uptime and security monitoring agents, vendor endpoint checks and integration pre-flight.
| Name | Type | Req | Description |
|---|---|---|---|
| host | string | yes | – |
No output schema declared.
No examples provided.
text-extract ~88
Extract the readable main content of any public web page as clean text: send a URL, get the page title, excerpt and body text with navigation, ads and boilerplate stripped (Mozilla Readability, computed on our own servers). For RAG ingestion, summarization, research and page monitoring. First-party extraction: no third-party reader service is resold.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | – |
No output schema declared.
No examples provided.
text-to-structure ~122
Turn unstructured text into strict, machine-readable JSON for agent pipelines: a deterministic, reproducible alternative to an LLM extraction call. Extracts emails, URLs, EVM wallet addresses, transaction hashes, ISO-normalized dates, money amounts, percentages, phone numbers and key:value pairs from invoices, emails, messages, logs or documents. Pass fields or a JSON schema to receive exactly the fields you need. Same input, same output, in milliseconds.
| Name | Type | Req | Description |
|---|---|---|---|
| fields | array | – | – |
| schema | object | – | – |
| text | string | yes | – |
No output schema declared.
No examples provided.
timestamp-convert ~49
Convert Unix seconds, Unix milliseconds or an ISO date to UTC and Asia/Shanghai timestamps. An empty object returns the current time.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | – | – |
| timestamp | number | – | – |
No output schema declared.
No examples provided.
How do I install the call402 — x402 Agent Services MCP server?
call402 — x402 Agent Services is a hosted endpoint at https://call402.com/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 · call402.com
claude mcp add --transport http lgs1520-call402 'https://call402.com/mcp'
What is the call402 — x402 Agent Services MCP server?
call402 — x402 Agent Services is an MCP server listed in the public MCP registry as io.github.lgs1520/call402. x402 pay-per-call APIs for agents: web search, wallet/token checks, text structuring. This page covers its hosted endpoint (https://call402.com/mcp).
Is the call402 — x402 Agent Services MCP server safe to use?
call402 — x402 Agent Services scores 56 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 call402 — x402 Agent Services MCP server expose?
call402 — x402 Agent Services exposes 12 tools: text-to-structure, fx-rates, email-verify, fear-greed-index, text-extract, and 7 more. Their descriptions and schemas cost roughly 1,053 tokens of context every time the server is loaded.
Does the call402 — x402 Agent Services MCP server require authentication?
No. We connected to call402 — x402 Agent Services without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the call402 — x402 Agent Services MCP server still maintained?
call402 — x402 Agent Services is still listed as active in the MCP registry. We last reached this channel on 22 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.