x402 Oracle
REMOTE · X402ORCLE.VERCEL.APP
Paid x402 help: debug 402 errors, review MCP manifests, rewrite Bazaar listings. USDC on Base.
Available components
Last scanned (6 hours ago)
Scores higher than 45% of remote servers
Reachable. Last reached 18 Oct 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
- Authorisation not fully verified: no authorisation is required to call this server, and 7 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 is enforced; there's no plaintext access path. View diagnostics → Pass
- The HSTS (Strict-Transport-Security) header is present. View diagnostics → Pass
- 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 Usability49
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 326 tokens (~46/item across 7 items; 7 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management3
- Stability observed for 1 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
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 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities40
- Spec-recency check failed: implements MCP spec 2025-03-26; the latest is 2026-07-28. See how to fix → Fail
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.
- 18 Oct 26 0
- Tool “complete_oracle_task” rewrote its description, which is the text the model reads security
- Tool “oracle_ask” rewrote its description, which is the text the model reads security
- Stability: unverified → 0.03 ▲ functional
- 17 Oct 26 57
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 18 Oct 2026 · Probed https://x402orcle.vercel.app/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=*.vercel.app | CN=WR1,O=Google Trust Services,C=US | 29 Aug 2026 | 27 Nov 2026 | RSA 2048 | SHA256-RSA | f7911168ffa7d0f4135e24792e7a52a8 |
| SANs: *.vercel.app | ||||||
| CN=WR1,O=Google Trust Services,C=US (CA) | CN=GTS Root R1,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | RSA 2048 | SHA256-RSA | 7fd9e2c2d2048a0474b627a26d0868a7 |
| CN=GTS Root R1,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 19 Jun 2020 | 28 Jan 2028 | RSA 4096 | SHA256-RSA | 77bd0d6cdb36f91aea210fc4f058d30d |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of x402orcle.vercel.app. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| app. | present | 23684 | 8 | Verified |
| vercel.app. | 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 |
|---|---|
| strict-transport-security | max-age=63072000; includeSubDomains; preload |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://x402orcle.vercel.app/mcp | Verified | 200 | |
| http (plaintext) | http://x402orcle.vercel.app/mcp | HTTPS enforced | 308 | https://x402orcle.vercel.app/mcp |
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 →
complete_oracle_task ~51
Outcome A2A task: typed diffs, operator handoff notes, and revenue/risk for a concrete x402 shipping goal.
| Name | Type | Req | Description |
|---|---|---|---|
| constraints | string | – | – |
| goal | string | yes | – |
No output schema declared.
No examples provided.
oracle_ask ~54
Paid x402/MCP/A2A/Bazaar consult. JSON wisdom envelope: verdict, wisdom, developer build notes, risk, citations, receipt.
| Name | Type | Req | Description |
|---|---|---|---|
| audience | string | – | – |
| question | string | yes | – |
No output schema declared.
No examples provided.
oracle_bazaar_rewrite ~59
Rewrite serviceName (≤32), description (≤500), tags (≤5) for buyer-query rank. Warns on first-index freeze.
| Name | Type | Req | Description |
|---|---|---|---|
| buyer_phrases | array | – | – |
| current_description | string | yes | – |
No output schema declared.
No examples provided.
oracle_diagnose_402 ~57
Post-mortem a 402 handshake: PAYMENT-REQUIRED shape, bazaar extension, network, asset, resource.url.
| Name | Type | Req | Description |
|---|---|---|---|
| challenge_b64_or_json | string | yes | – |
| resource_url | string | – | – |
No output schema declared.
No examples provided.
oracle_health ~28
Free liveness + seller posture (payTo configured, no spend key, network, demo/live).
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
oracle_pricing ~30
Free menu of paid consults, A2A tasks, and connect how-to. No keys requested.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
oracle_review_mcp ~47
Review an MCP paid-tool server for createPaymentWrapper, free health tool, discovery extension, burner isolation.
| Name | Type | Req | Description |
|---|---|---|---|
| mcp_url | string | yes | – |
| notes | string | – | – |
No output schema declared.
No examples provided.
How do I install the x402 Oracle MCP server?
x402 Oracle is a hosted endpoint at https://x402orcle.vercel.app/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 · x402orcle.vercel.app
claude mcp add --transport http kwizzlesurp10-ctrl-x402orcle 'https://x402orcle.vercel.app/mcp'
What is the x402 Oracle MCP server?
x402 Oracle is an MCP server listed in the public MCP registry as io.github.kwizzlesurp10-ctrl/x402orcle. Paid x402 help: debug 402 errors, review MCP manifests, rewrite Bazaar listings. USDC on Base. This page covers its hosted endpoint (https://x402orcle.vercel.app/mcp).
Is the x402 Oracle MCP server safe to use?
x402 Oracle scores 57 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 Oracle MCP server expose?
x402 Oracle exposes 7 tools: oracle_health, oracle_pricing, oracle_ask, oracle_diagnose_402, oracle_review_mcp, and 2 more. Their descriptions and schemas cost roughly 326 tokens of context every time the server is loaded.
Does the x402 Oracle MCP server require authentication?
No. We connected to x402 Oracle without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the x402 Oracle MCP server still maintained?
x402 Oracle is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.