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Xynthera AI — JSON invoice, OpenAPI and event checks

R1· needs a key

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

v2026.10.14 · active · website · descriptor JSON · versions

An agent can connect on its own if it already holds XYNTHERA_AI_PREPAID_TOKEN.Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.
Quality73new
Trust83of 100
Uptime, 30 days100%
Latency p50280 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "xynthera-ai-prepaid": {
      "type": "http",
      "url": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp",
      "headers": {
        "Authorization": "Bearer ${XYNTHERA_AI_PREPAID_TOKEN}"
      }
    }
  }
}
claude mcp add --transport http xynthera-ai-prepaid https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp --header "Authorization: Bearer ${XYNTHERA_AI_PREPAID_TOKEN}"
[mcp_servers.xynthera-ai-prepaid]
url = "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp"
bearer_token_env_var = "XYNTHERA_AI_PREPAID_TOKEN"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "xynthera-ai-prepaid": {
      "type": "remote",
      "url": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:XYNTHERA_AI_PREPAID_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "xynthera-ai-prepaid": {
      "type": "http",
      "url": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp",
      "headers": {
        "Authorization": "Bearer ${XYNTHERA_AI_PREPAID_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=xynthera-ai-prepaid&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vcGZ4eHpzbmJvZWh4c2VmeWFqbWwuc3VwYWJhc2UuY28vZnVuY3Rpb25zL3YxL3h5bnRoZXJhLWFpLXBheWctbWNwL21jcCIsImhlYWRlcnMiOnsiQXV0aG9yaXphdGlvbiI6IkJlYXJlciAke1hZTlRIRVJBX0FJX1BSRVBBSURfVE9LRU59In19"
}
{
  "servers": {
    "xynthera-ai-prepaid": {
      "type": "http",
      "url": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp",
      "headers": {
        "Authorization": "Bearer ${XYNTHERA_AI_PREPAID_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "xynthera-ai-prepaid": {
      "httpUrl": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp",
      "headers": {
        "Authorization": "Bearer ${XYNTHERA_AI_PREPAID_TOKEN}"
      }
    }
  }
}
extensions:
  "xynthera-ai-prepaid":
    enabled: true
    name: "xynthera-ai-prepaid"
    type: streamable_http
    uri: "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp"
    headers:
      "Authorization": "Bearer ${XYNTHERA_AI_PREPAID_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${XYNTHERA_AI_PREPAID_TOKEN}. The registry never accepts secret values.

Quality 73 / 100new

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene71 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • fail
    tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_budget_status (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); reconcile_invoice (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); check_contract (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
  • pass
    tools.token_costabout 2,769 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stabilityn/a · weight 15
  • n/a
    stability.changes, stability.rug_pulltool history recorded for 4 of the 7 days needed
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

6 tools, about 2,769 tokens to load them all · tool set 35226634bb32 · tools last changed 2026-10-15 · checked 2026-10-19 12:00 UTC

Tool changes

  • spend_truthadded

    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.

  • effect_guardadded

    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.

  • check_contractchangeddescription
    before

    Paid EUR 0.010 excluding tax per new signed contract consistency check; checks supplied declarations only. 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.

    after · 65% of words in common

    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.

  • get_budget_statuschangeddescriptionmeaning changed
    before

    Read paid prepaid balance and state; free. The initial purchase amount is the hard server-side total spending limit. No automatic recharge.

    after · 41% of words in common

    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.

Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 83 / 100

no-repository
provenance55
liveness100
freshness100
hygiene80

+dns-namespace +website +reachable +uptime-100% +updated-5d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp streamable-httpapi_key ${XYNTHERA_AI_PREPAID_TOKEN}yes100%280 ms2025-11-252026-10-19

Tools (6)

check_contractPaid 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.
check_eventsPaid 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.
effect_guardGuard 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.
get_budget_statusRead 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.
reconcile_invoicePaid 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_truthCreate/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.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "site.chatgpt.toasty-seal-8877.xynthera-ai/xynthera-ai-prepaid",
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "tools": [
        {
          "name": "get_budget_status",
          "authentication_required": true,
          "unit_price_micro_eur_ht": 0
        },
        {
          "name": "reconcile_invoice",
          "unit_price_micro_eur_ht": 5000
        },
        {
          "name": "check_contract",
          "unit_price_micro_eur_ht": 10000
        },
        {
          "name": "check_events",
          "max_events_per_batch": 200,
          "unit_price_micro_eur_ht": 2000
        }
      ],
      "pricing": {
        "currency": "EUR",
        "consumption_basis": "excluding_taxes",
        "automatic_purchase": false,
        "automatic_recharge": false,
        "budget_amount_basis": "including_applicable_taxes",
        "budget_max_total_minor": 1000000,
        "budget_min_total_minor": 1000
      },
      "reports": {
        "customer_must_save": true,
        "server_report_archive": false,
        "reconstruction_metadata_days": 30
      },
      "limitations": [
        "Checks caller-supplied structured data; no OCR, live endpoint audit or banking connection.",
        "Does not perform supplier payments, certification or autonomous purchases.",
        "Other suite APIs are not granted by this prepaid code."
      ],
      "privacy_url": "https://xynthera-ai.toasty-seal-8877.chatgpt.site/privacy.html",
      "purchase_url": "https://xynthera-ai.toasty-seal-8877.chatgpt.site/payg.html",
      "authentication": {
        "type": "bearer_prepaid_capability",
        "oauth_supported": false,
        "customer_credentials_required_for_paid_tools": true
      },
      "commercial_status": "three_prepaid_operations_available",
      "documentation_url": "https://xynthera-ai.toasty-seal-8877.chatgpt.site/prepaid-api.html",
      "publication_status": "published"
    }
  },
  "title": "Xynthera AI — JSON invoice, OpenAPI and event checks",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://pfxxzsnboehxsefyajml.supabase.co/functions/v1/xynthera-ai-payg-mcp/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "isRequired": true,
          "description": "Full Bearer header using your own private prepaid budget code. Keep it secret.",
          "placeholder": "Bearer YOUR_PRIVATE_BUDGET_CODE"
        }
      ]
    }
  ],
  "version": "2026.10.14",
  "websiteUrl": "https://xynthera-ai.toasty-seal-8877.chatgpt.site/ai-connect.html",
  "description": "Signed deterministic checks for supplied JSON invoices, OpenAPI API contracts and JSON events."
}