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📊 Intel view 📋 Audit JSON 🔄 Changelog
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A2A live JSON-RPC A2A 0.3.0

TESSA Marketing & Technology

tessa.tech

Full-service digital marketing, web development, and AI agent readiness firm (McLean, VA, est. 2012). Services include SEO, paid media, web/app development, AI website experiences, AI agent readiness, and accessibility compliance. Operates the first vertical A2A registries in professional services (complianceregistry.net, marketingregistry.org).

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🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Structured JSON via card-changes API. Sign in to subscribe
Trust score
54/100
grade D · 9 criteria
Uptime
1.7%
59 probes
Revenue · 30d
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →
D
Conformance score: 54/100
D-grade: significant issues — auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
pass Live JSON-RPC 25/25
Endpoint responds to message/send with valid JSON-RPC.
partial Protocol version 5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
fail Uptime track record 0/15
1/59 probes succeeded (2% uptime).
How to earn +15 points
Stabilise uptime
We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or transient 5xx on cold start.
Docs →
pass Skill declaration 10/10
Declares 7 skills with structured metadata.
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
No securitySchemes declared (common for open agents — not penalised).
⚠ Card drift detected — this agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. Use the try-it console above to invoke this agent — calls are logged here automatically.

Uptime
1.7%
59 probes
Response
0ms
last probe
Skills
7
declared
Streaming
SSE-capable

Try it

Send a message to this agent live. Your prompt is proxied through Agenstry.

calling agent…

Endpoints

Agent cardhttps://tessa.tech/.well-known/agent-card.json
Discovered via
registry a2aregistry recrawl_warm

Health · last 30 probes

When HTTP Live JSON-RPC Latency
2026-05-22 12:01:46 403
2026-05-22 05:39:46 403
2026-05-21 15:36:51 403
2026-05-20 17:53:17 403
2026-05-20 16:49:53 403
2026-05-20 15:39:36 403
2026-05-20 12:46:17 403
2026-05-20 11:19:16 403
2026-05-20 09:26:21 403
2026-05-20 08:00:40 403

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Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/tessa.tech.svg)](https://agenstry.com/agents/tessa.tech)
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Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "name": "TESSA Marketing & Technology",
  "url": "https://tessa.tech/.well-known/agent-card.json",
  "description": "Full-service digital marketing, web development, and AI agent readiness firm (McLean, VA, est. 2012). Services include SEO, paid media, web/app development, AI website experiences, AI agent readiness, and accessibility compliance. Operates the first vertical A2A registries in professional services (complianceregistry.net, marketingregistry.org).",
  "version": "1.0.0",
  "documentationUrl": "https://tessa.tech/",
  "iconUrl": null,
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "tessa-services",
      "name": "TESSA Services Catalog",
      "description": "Returns TESSA's full service catalog: SEO, paid media, web/app development, AI website experiences, AI agent readiness, accessibility, and more. Includes pricing tiers and ideal client profiles per service.",
      "tags": [
        "services",
        "catalog",
        "marketing",
        "web-development",
        "ai"
      ],
      "examples": [],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "tessa-case-studies",
      "name": "TESSA Case Studies",
      "description": "Returns TESSA's project portfolio with industries, services used, and measurable outcomes. Includes SCS Engineers (240% traffic growth), Network for Good (357K monthly traffic), Gettysburg Museum (193% revenue YoY).",
      "tags": [
        "case-studies",
        "portfolio",
        "results",
        "proof"
      ],
      "examples": [],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "ai-readiness-assessment",
      "name": "AI Agent Readiness Assessment",
      "description": "Given a website URL, returns a structured score (0-100) of how ready that site is to be discovered and queried by AI agents. Checks JSON-LD/schema coverage, well-known agent card, llms.txt, robots.txt AI directives, and metadata quality.",
      "tags": [
        "ai-readiness",
        "agent-discovery",
        "audit",
        "schema"
      ],
      "examples": [],
      "inputModes": [
        "application/json"
      ],
      "outputModes": []
    },
    {
      "id": "find-professional-services-firm",
      "name": "Find a Professional Services Firm",
      "description": "Search the TESSA Professional Services Directory across all vertical registries TESSA operates. Filter by industry, region, or capability. Returns matching firms with their slugs, websites, and locations.",
      "tags": [
        "directory",
        "search",
        "firm-discovery"
      ],
      "examples": [],
      "inputModes": [
        "application/json"
      ],
      "outputModes": []
    },
    {
      "id": "get-wcag-audit",
      "name": "Get TESSA's WCAG 2.2 AA Accessibility Audit Offering",
      "description": "Returns TESSA's WCAG 2.2 AA accessibility audit offering in structured form: scope, deliverables (VPAT/ACR, findings report, remediation roadmap), typical timeline, pricing bands (hourly $150\u2013$225, project range $5K\u2013$25K), and the URL of TESSA's accessibility profile in the TESSA Compliance Registry.",
      "tags": [
        "accessibility",
        "wcag",
        "audit",
        "vpat",
        "ada",
        "section-508"
      ],
      "examples": [],
      "inputModes": [],
      "outputModes": []
    },
    {
      "id": "request-strategy-session",
      "name": "Book a Strategy Session with TESSA",
      "description": "Book a 30-minute strategy session with Kevin Callen on TESSA's calendar. Provide prospect contact info, project brief, and (optionally) a preferred window. TESSA's MCP server finds an open slot, creates a Google Calendar event with a Google Meet link, and sends the prospect the invite. Returns the scheduled time and Meet link to the calling agent.",
      "tags": [
        "lead",
        "booking",
        "strategy-session",
        "calendar"
      ],
      "examples": [],
      "inputModes": [
        "application/json"
      ],
      "outputModes": []
    },
    {
      "id": "request-introduction",
      "name": "Request an Introduction",
      "description": "Request an informational introduction to TESSA, or pass target_firm_slug to request an intro to any firm in the TESSA Professional Services Directory. TESSA logs the lead and forwards a warm intro email to the firm. Use request-strategy-session if you want to actually book a meeting with TESSA.",
      "tags": [
        "lead",
        "contact",
        "introduction"
      ],
      "examples": [],
      "inputModes": [
        "application/json"
      ],
      "outputModes": []
    }
  ],
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false,
    "extensions": null
  },
  "protocolVersion": "0.3.0",
  "provider": {
    "organization": "TESSA Marketing & Technology",
    "url": "https://tessa.tech/"
  }
}