generated: '2026-09-19'
method: probed
status: published
source: https://aiagent.tessa.tech/mcp/ (initialize + tools/list, 2026-09-19) + https://aiagent.tessa.tech/.well-known/mcp/server.json
  + https://aiagent.tessa.tech/ (root document)
summary: 'TESSA Marketing & Technology runs a hosted, anonymous MCP server on its own agent host: Streamable HTTP
  at https://aiagent.tessa.tech/mcp/, serverInfo name tessa-mcp-server version 1.30.0, protocolVersion 2025-06-18,
  ten tools, no resources and no prompts. It is advertised three ways from the same host — an MCP server.json at
  /.well-known/mcp/server.json (2025-12-11 registry schema, remotes[] streamable-http), the did:web document''s
  MCPServer service entry, and the root document''s mcp_endpoint field — and the A2A agent card''s nine skills map
  one-to-one onto nine of the ten tools. A second, separate MCP server runs on the WordPress apex behind OAuth 2.1
  and could not be introspected anonymously; it is recorded below as gated.'
server:
  name: tessa-mcp-server
  title: TESSA Marketing & Technology
  registry_name: tech.tessa/tessa-mcp-server
  transport: streamable-http
  url: https://aiagent.tessa.tech/mcp/
  server_info:
    name: tessa-mcp-server
    version: 1.30.0
  server_json_version: 1.0.1
  protocol_version: '2025-06-18'
  capabilities:
    tools:
      listChanged: false
    resources:
      subscribe: false
      listChanged: false
    prompts:
      listChanged: false
    experimental: {}
  manifest: well-known/tessa-tech-mcp-server.json
  did_document: well-known/tessa-tech-did.json
  hosting: 'Railway (server: railway-hikari; x-railway-request-id on every response)'
  listings:
  - a2aregistry.org (as the A2A agent, which advertises this MCP server in its skill text)
deployment:
  mode: remote
  endpoint: https://aiagent.tessa.tech/mcp/
  auth: none
  verified: probed
  checked: '2026-09-19'
  probe:
    note: 'Session-based Streamable HTTP. A bare POST tools/list returns 400 {"error":{"code":-32600,"message":"Bad
      Request: Missing session ID"}}; a POST without Accept: text/event-stream returns 406 -32600 "Client must accept
      text/event-stream". After initialize (200, text/event-stream, mcp-session-id header issued) and notifications/initialized,
      tools/list returned 200 with ten tools and full inputSchema objects — no credential was sent at any step.'
    requests:
    - method: initialize
      http_status: 200
      content_type: text/event-stream
      session_header: mcp-session-id
    - method: tools/list
      http_status: 200
      tools: 10
      saved: mcp/tessa-tech-mcp-tools-list.json
    - method: resources/list
      http_status: 200
      resources: 0
    - method: prompts/list
      http_status: 200
      prompts: 0
    no_side_effects: Only initialize, notifications/initialized, tools/list, resources/list and prompts/list were
      issued. No tools/call. No lead, booking, claim or quote was created.
auth:
  methods:
  - none
  note: Anonymous. No WWW-Authenticate challenge, no RFC 9728 protected-resource metadata on aiagent.tessa.tech
    (/.well-known/oauth-protected-resource 404). The four lead-creating tools rely on the caller-supplied prospect_email
    as the only identity signal.
tool_count: 10
tools:
- name: get_services
  category: catalog
  description: 'Returns TESSA''s full service catalog (SEO, paid media, web/app development, AI agent readiness,
    accessibility, and more). Each service includes its live per-service A2A card URL (`agent_card`) and JSON-RPC
    endpoint (`a2a_endpoint`), so you can discover a service here and then talk to its dedicated A2A agent. Optional
    filters: category_slug: marketing | web-development | ai-experiences service_slug: filter to one specific service'
  input_schema:
    required: []
    properties:
      category_slug:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      service_slug:
        anyOf:
        - type: string
        - type: 'null'
        default: null
  side_effects: none (read-only)
  a2a_skill: tessa-services
- name: get_case_studies
  category: catalog
  description: 'Returns TESSA''s portfolio of project results. Optional filters: industry: industry name keyword
    (case-insensitive contains) service_slug: filter to studies that used a given service'
  input_schema:
    required: []
    properties:
      industry:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      service_slug:
        anyOf:
        - type: string
        - type: 'null'
        default: null
  side_effects: none (read-only)
  a2a_skill: tessa-case-studies
- name: assess_ai_readiness
  category: assessment
  description: Given a website URL, returns a 0-100 AI Agent Readiness score with category breakdowns (structured
    data, metadata quality, agent discoverability, AI-bot friendliness) and concrete recommendations. Pure deterministic
    check, fast, no LLM call.
  input_schema:
    required:
    - url
    properties:
      url:
        type: string
  side_effects: none (read-only)
  a2a_skill: ai-readiness-assessment
- name: find_professional_services_firm
  category: directory
  description: 'Search the TESSA Professional Services Directory. industry: segment slug (''marketing'' | ''compliance'')
    or free-text keyword region: city or state name (case-insensitive contains) capability: keyword to match against
    firm descriptions and service names limit: max results'
  input_schema:
    required: []
    properties:
      industry:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      region:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      capability:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      limit:
        default: 20
        type: integer
  side_effects: none (read-only)
  a2a_skill: find-professional-services-firm
- name: get_firm_profile
  category: directory
  description: 'Returns the full dossier for a single firm in the directory: description, headquarters, founded
    year, employee band, services, locations, and directory meta (publisher, claim URL, takedown URL).'
  input_schema:
    required:
    - slug
    properties:
      slug:
        type: string
  side_effects: none (read-only)
  a2a_skill: null
  note: 'MCP-only: no A2A skill; backed by the REST firm profile route (see the crosswalk).'
- name: get_wcag_audit
  category: catalog
  description: 'Returns the structured offering for TESSA''s WCAG 2.2 AA Accessibility Audit: scope, deliverables,
    timeline, pricing bands (hourly + engagement range), paired service-type slugs, and the URL of TESSA''s profile
    in the TESSA Compliance Registry. Use this when a buyer agent needs TESSA''s accessibility audit offering in
    structured form.'
  input_schema:
    required: []
    properties: {}
  side_effects: none (read-only)
  a2a_skill: get-wcag-audit
- name: request_strategy_session
  category: lead
  description: Book a 30-minute strategy session with TESSA on Kevin Callen's calendar. Finds an open slot in the
    requested window (or the next 5 business days), creates a Google Calendar event with a Google Meet link, and
    emails the prospect the invite. If no slot is available, captures the lead and Kevin follows up manually. TESSA-only
    tool — directory firms use request_introduction instead. requested_window accepts ISO 8601 ranges ('2026-04-30T13:00/2026-04-30T17:00'),
    single dates ('2026-04-30'), or English ('tomorrow', 'next week').
  input_schema:
    required:
    - prospect_email
    properties:
      prospect_email:
        type: string
      prospect_name:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      prospect_org:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      project_brief:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      requested_window:
        anyOf:
        - type: string
        - type: 'null'
        default: null
  side_effects: Creates a Google Calendar event with a Google Meet link on Kevin Callen's calendar and emails the
    prospect; falls back to capturing a lead when no slot is free.
  a2a_skill: request-strategy-session
- name: request_introduction
  category: lead
  description: Request an informational introduction — to TESSA itself, or to any directory firm if you pass target_firm_slug.
    TESSA logs the lead and either notifies sales@tessa.tech + kevincallen@tessa.tech (TESSA leads) or forwards
    a warm intro email to the firm with TESSA Cc'd (directory leads). No calendar booking — use request_strategy_session
    to book a meeting with TESSA.
  input_schema:
    required:
    - prospect_email
    properties:
      prospect_email:
        type: string
      prospect_name:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      prospect_org:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      project_brief:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      requested_window:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      target_firm_slug:
        anyOf:
        - type: string
        - type: 'null'
        default: null
  side_effects: Logs a lead; notifies sales@tessa.tech + kevincallen@tessa.tech (TESSA leads) or forwards a warm
    intro email to the target firm with TESSA Cc'd.
  a2a_skill: request-introduction
- name: claim_listing
  category: directory
  description: Record a firm's intent to claim its directory listing. Pre-OAuth this does NOT automatically grant
    control of the listing. TESSA logs the claim and a representative reaches out via email within one business
    day to verify the claimant and switch the listing's verification status to 'claimed'. The full self-service
    OAuth-2.1 claim flow lands in a follow-up plan.
  input_schema:
    required:
    - firm_slug
    - claim_email
    properties:
      firm_slug:
        type: string
      claim_email:
        type: string
      claimant_name:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      claimant_role:
        anyOf:
        - type: string
        - type: 'null'
        default: null
  side_effects: Logs a claim intent; a representative verifies by email within one business day. Does NOT grant
    listing control (pre-OAuth stub, per the tool description).
  a2a_skill: claim-listing
- name: request_quote
  category: lead
  description: 'Request a quote from a directory firm. Lighter-weight than request_introduction — explicitly framed
    as a budget+scope inquiry. firm_slug: directory slug for the target firm prospect_email: caller''s email for
    the firm''s reply scope_summary: one-paragraph description of the work budget_band: ''under_5k'' | ''5k_25k''
    | ''25k_100k'' | ''100k_plus'' | ''open'' — or any free-text dollar figure'
  input_schema:
    required:
    - firm_slug
    - prospect_email
    - scope_summary
    properties:
      firm_slug:
        type: string
      prospect_email:
        type: string
      scope_summary:
        type: string
      budget_band:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      prospect_name:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      prospect_org:
        anyOf:
        - type: string
        - type: 'null'
        default: null
      requested_window:
        anyOf:
        - type: string
        - type: 'null'
        default: null
  side_effects: Records the request to directory_leads and emails the firm with the prospect's reply-to address.
  a2a_skill: request-quote
resources: []
prompts: []
additional_servers:
- name: WordPress MCP (mcp-oauth-server)
  host: tessa.tech
  url: https://tessa.tech/wp-json/mcp/mcp-oauth-server
  transport: http (WordPress REST route, methods POST/GET/DELETE)
  deployment:
    mode: remote
    endpoint: https://tessa.tech/wp-json/mcp/mcp-oauth-server
    auth: oauth
    verified: probed
    probe: gated
  auth:
    methods:
    - oauth2
    oauth2:
      issuer: https://tessa.tech
      authorization_endpoint: https://tessa.tech/oauth/authorize
      token_endpoint: https://tessa.tech/oauth/token
      revocation_endpoint: https://tessa.tech/oauth/revoke
      grant_types:
      - authorization_code
      - refresh_token
      pkce: S256
      scopes_supported:
      - mcp
      token_endpoint_auth_methods_supported:
      - none
      client_id_metadata_document_supported: true
      discovery: well-known/tessa-tech-oauth-authorization-server.json
      protected_resource_metadata: well-known/tessa-tech-oauth-protected-resource.json
  probe:
    tools_list_anonymous:
      http_status: 401
      body: '{"code":"mcp_unauthorized","message":"MCP authentication required.","data":{"status":401}}'
    www_authenticate: absent (the 401 body carries the challenge; no WWW-Authenticate header with resource_metadata
      was returned, so an MCP client must find the RFC 9728 document by convention at /.well-known/oauth-protected-resource)
  tools: unknown — tools/list is OAuth-gated; input schemas require authenticated introspection. Not derived.
  note: The WordPress REST index lists namespace 'mcp' with routes /mcp/mcp-oauth-server and /mcp/mcp-adapter-default-server
    (the latter answers 401 rest_forbidden), alongside a 'wp-abilities/v1' namespace — the WordPress MCP Adapter
    / Abilities API stack. This is the resource the apex's RFC 9728 document names.
- name: Registry-host mounts of the same server
  urls:
  - https://complianceregistry.net/mcp/
  - https://marketingregistry.org/mcp/
  note: The Compliance Registry agent card (https://complianceregistry.net/.well-known/agent-card.json, provider
    TESSA) states 'Powered by TESSA's MCP server, served via Streamable HTTP at /mcp/' and both registry hosts serve
    the byte-identical OpenAPI. Not introspected in this pass; recorded as declared by the provider.