generated: '2026-09-02'
method: probed
source: https://www.vergentbio.com/_api/mcp
description: >-
  Cross-cutting runtime semantics for the only callable surface Vergent Bioscience serves —
  the anonymous Wix Site MCP endpoint on www.vergentbio.com. Derived from the probed
  tools/list manifest, the observed response headers, and the provider's published llms.txt.
  There is no REST/GraphQL API, so most conventions below are recorded as not-applicable
  rather than guessed.
surface: https://www.vergentbio.com/_api/mcp

auth_style:
  model: anonymous
  detail: >-
    No credentials to connect. Two write-capable tools require a visitorToken minted
    anonymously on the same endpoint. See authentication/vergent-bioscience-authentication.yml.

transport:
  protocol: JSON-RPC 2.0 over HTTPS POST
  content_type: application/json; charset=utf-8
  accept: 'application/json, text/event-stream'
  session: >-
    Server issues an Mcp-Session-Id response header (observed on the tools/list probe,
    2026-09-02).

error_envelope:
  style: json-rpc-2.0
  shape: '{"jsonrpc":"2.0","id":<id>,"error":{"code":<int>,"message":<string>}}'
  rfc9457: false
  note: >-
    No error catalog is published and no error responses were deliberately induced, so
    errors/ is not emitted. Recording the envelope shape only, which the JSON-RPC 2.0
    conformance entry establishes.

idempotency:
  supported: unknown
  header: null
  note: >-
    Nothing in the probed manifest or in the provider's published text documents an
    idempotency key, replay window, or retry semantics. No Idempotency pointer is emitted.

pagination:
  applicable: false
  note: 'No collection-returning REST operations exist on any company host.'

versioning:
  scheme: none-published
  note: >-
    The MCP endpoint carries no version path segment and the manifest declares no protocol
    version. Wix versions the platform; Vergent publishes no versioning policy of its own.

rate_limit_signaling:
  headers_observed: none
  note: >-
    The tools/list and tools/call responses carried no X-RateLimit-*, RateLimit-* or
    Retry-After headers. See rate-limits/vergent-bioscience-rate-limits.yml.

request_tracing:
  header: x-wix-request-id
  note: >-
    Observed on the probed responses. It is a Wix platform request id, useful for correlating
    with the platform rather than with Vergent.

reversibility:
  grade: na
  rationale: >-
    The surface Vergent exposes is effectively read-only. Seven of the nine probed tools are
    read/search/documentation tools with no side effects. The two that can write —
    CallWixSiteAPI and ExecuteWixAPI — are generic Wix platform passthroughs, and this site
    installs no bookings, ecommerce, or forms solution whose writes an anonymous visitor could
    perform; it is a static marketing and investor site for a clinical-stage biotech.
  reversal_operations: []
  windows_documented: false
  note: >-
    No cancel/refund/void/undo/restore operation, and no reversal window, is documented
    anywhere on the provider's surface. Nothing is asserted here that the docs do not state.
    ExecuteWixAPI does carry an explicit `hasMutations` boolean in its required inputSchema,
    which lets a caller declare intent before acting — recorded as an observation, not as a
    reversal path, because it does not undo anything.

dry_run_mode:
  grade: na
  note: 'No write surface to rehearse.'

cross_links:
  authentication: authentication/vergent-bioscience-authentication.yml
  conformance: conformance/vergent-bioscience-conformance.yml
  mcp: mcp/vergent-bioscience-mcp.yml
  rate_limits: rate-limits/vergent-bioscience-rate-limits.yml
  well_known: well-known/vergent-bioscience-well-known.yml