Xynthera AI — JSON invoice, OpenAPI and event checks MCP Server

by chatgpt-toasty-seal-8877-xynthera-ai Your server? Claim it

answering

Xynthera AI — JSON invoice, OpenAPI and event checks is answering right now. Last checked moments ago. It exposes 6 tools.

Signed deterministic checks for supplied JSON invoices, OpenAPI API contracts and JSON events.

Uptime history 20 days of history

20 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

160 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Xynthera AI — JSON invoice, OpenAPI and event checks every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 0 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add xynthera-ai-prepaid --transport http https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp

Settings → Connectors → Add custom connector, then paste this address

https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp

~/.codex/config.toml

[mcp_servers.xynthera-ai-prepaid]
url = "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "xynthera-ai-prepaid": {
      "url": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "xynthera-ai-prepaid": {
      "type": "http",
      "url": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

budget

get_budget_status

Read authenticated prepaid balance and state; free, with no debit. Before funding, the buyer manually purchases a budget at https://xynthera-ai.toasty-seal-8877.chatgpt.site/payg.html. Requires a private budget code in Authorization: Bearer; no OAuth. The initial purchase amount is the hard server-side total spending limit. No automatic recharge.

contract

check_contract

Paid EUR 0.010 excluding tax per new signed consistency report for a supplied OpenAPI JSON API contract only, with optional supplied offer/observation comparisons. No legal contract analysis, runtime endpoint testing, security audit or full OpenAPI standard certification. Identical request_id and body avoid a second debit. Report reconstruction is available for 30 days; save the original report. After that the request may be refused, never automatically retried with a new ID.

effect

effect_guard

Guard one logical external effect. The prepare operation costs 390 micro-EUR excluding tax only when a new logical decision is successfully created; exact prepare replays and get/claim/settle/reconcile/cancel are free. This service grants one opaque execution authority but never performs the external action. Before settle, register the tenant-scoped ES256 outcome verifier described by the hosted OpenAPI. Reuse the same logical_identity and exact body after an unknown transport outcome; changed content conflicts. Keep claim capabilities private and never retry with a new identity merely because a response was lost.

events

check_events

Paid EUR 0.002 excluding tax per signed event batch of up to 200 supplied events, no actual delivery attestation. Identical request_id and body avoid a second debit. Report reconstruction lasts 30 days; retain the returned report. No automatic retries.

reconcile

reconcile_invoice

Paid EUR 0.005 excluding tax per new, successful signed invoice consistency check. Supply the entire documented JSON input and a stable unique request_id. Analysis of supplied data only, no bank validation. Exact same-body retries avoid a second debit; report reconstruction lasts 30 days, so retain reports.

spend

spend_truth

Create/read a resource budget and reserve or reconcile an agent action against it. A successful new reserve costs 290 micro-EUR excluding tax; exact reserve replays and create_budget/get_budget/get_reservation/begin/settle/release/mark_unknown/reconcile are free. Reservation is the only billable operation and performs no provider action. Each budget accepts at most 128 reservations; a 129th new logical reservation is rejected before billing. Before settle, register the tenant-scoped ES256 outcome verifier described by the hosted OpenAPI. Reuse logical_identity and the exact body after an unknown outcome; keep capabilities private and use the stable provider idempotency key returned by begin.

Endpoints

URL	Transport	State	Latency	Checked
https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp	streamable-http	answering	169 ms	0 min ago

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Xynthera AI — JSON invoice, OpenAPI and event checks — questions

Answers built from our own checks of this server.

What can Xynthera AI — JSON invoice, OpenAPI and event checks do?

It exposes 6 tools, read directly from the server on our last check. Among them: check_contract, check_events, effect_guard, get_budget_status, reconcile_invoice, spend_truth. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Xynthera AI — JSON invoice, OpenAPI and event checks working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 160 ms. The bar chart above shows every period we have measured.

How do I connect Xynthera AI — JSON invoice, OpenAPI and event checks?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Xynthera AI — JSON invoice, OpenAPI and event checks need an API key?

No. Xynthera AI — JSON invoice, OpenAPI and event checks completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Xynthera AI — JSON invoice, OpenAPI and event checks?

It answers our handshake in 160 ms on average, which is faster than 80% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.