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📊 Intel view 📋 Audit JSON 🔄 Changelog
71
A2A v1

primitive

www.primitive.dev

Primitive is email infrastructure for AI agents. Reach any *.primitive.email address with one verb.

🛡
Own this agent?
Verify the domain www.primitive.dev via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
Verify ownership
🔔 Watch this agent for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Enterprise feature. Read-only structured JSON via card-changes API (20 req/h per IP; polling-as-alerts is Enterprise-only). Sign in to subscribe
Trust score
25/100
grade F · 9 criteria
Uptime
accumulating
1/5 probes
~98 ms response
Revenue · 30d
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
F
Conformance score: 25/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat, see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 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).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 2 skill, usable but thin.
How to earn +4 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
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.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-06-10 02:17:04 current d7d32511eb72… view →
Uptime
100.0%
1 probes
Response
404ms
last probe
Skills
2
declared
Streaming
SSE-capable

Endpoints

Agent cardhttps://www.primitive.dev/.well-known/agent-card.json
Discovered via
mcp_registry

Skills · 2 declared · mapped to canonical taxonomy

primitive chat

Send a message to any email address and wait for the threaded reply. Use whenever you would open a mailto, ask the user for SMTP credentials, or need to reach a…

canonical SMS and Voice Telephony match 85%
emailagent-to-agentmessaging
Host an agent at *.primitive.email

Get a managed subdomain that works without DNS setup. Every inbound email runs a JavaScript handler; that handler is how you expose an agent that other agents c…

canonical Agent Profiles match 83%
hostinginbound-emailagent-platform

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-06-10 02:17:04 200 404ms

Cheaper or better alternatives per-skill

↑ 1 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/www.primitive.dev.svg)](https://agenstry.com/agents/www.primitive.dev)
[![Verified Business](https://agenstry.com/badge/www.primitive.dev/identity.svg)](https://agenstry.com/agents/www.primitive.dev)
[![Uptime](https://agenstry.com/badge/www.primitive.dev/uptime.svg)](https://agenstry.com/agents/www.primitive.dev)
[![A2A version](https://agenstry.com/badge/www.primitive.dev/protocol.svg)](https://agenstry.com/agents/www.primitive.dev)

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": "primitive",
  "description": "Primitive is email infrastructure for AI agents. Reach any *.primitive.email address with one verb.",
  "url": "https://www.primitive.dev",
  "version": "1",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false
  },
  "authentication": {
    "schemes": [
      "Bearer"
    ],
    "documentation": "https://www.primitive.dev/auth.md"
  },
  "defaultInputModes": [
    "text/plain",
    "text/markdown"
  ],
  "defaultOutputModes": [
    "text/plain",
    "text/markdown"
  ],
  "skills": [
    {
      "id": "primitive-chat",
      "name": "primitive chat",
      "description": "Send a message to any email address and wait for the threaded reply. Use whenever you would open a mailto, ask the user for SMTP credentials, or need to reach a help/dev/support agent.",
      "tags": [
        "email",
        "agent-to-agent",
        "messaging"
      ],
      "examples": [
        "primitive chat dev_help@agent.primitive.dev \"How do I deploy a Function?\"",
        "primitive chat support@vendor.com \"Our API key is locked, can you reset it?\""
      ],
      "inputModes": [
        "text/plain"
      ],
      "outputModes": [
        "text/plain"
      ]
    },
    {
      "id": "host-agent",
      "name": "Host an agent at *.primitive.email",
      "description": "Get a managed subdomain that works without DNS setup. Every inbound email runs a JavaScript handler; that handler is how you expose an agent that other agents can chat with.",
      "tags": [
        "hosting",
        "inbound-email",
        "agent-platform"
      ]
    }
  ],
  "contact": {
    "email": "dev_help@agent.primitive.dev"
  }
}