diff --git a/api/admin/publish-agent-cards.js b/api/admin/publish-agent-cards.js
new file mode 100644
index 0000000..c2fdd87
--- /dev/null
+++ b/api/admin/publish-agent-cards.js
@@ -0,0 +1,116 @@
+'use strict';
+
+const db = require('../../lib/db');
+const { requireAdminAuth } = require('./_auth');
+
+const BASE_URL = 'https://www.commandlayer.org';
+const CARD_VERSION = '1.1.0';
+
+module.exports = async function handler(req, res) {
+  res.setHeader('Content-Type', 'application/json; charset=utf-8');
+  res.setHeader('Cache-Control', 'no-store');
+
+  if (req.method !== 'POST') {
+    res.setHeader('Allow', 'POST');
+    return res.status(405).json({ ok: false, status: 'METHOD_NOT_ALLOWED' });
+  }
+  if (!requireAdminAuth(req, res)) return;
+
+  const claimId = typeof req.body?.claimId === 'string' ? req.body.claimId.trim() : '';
+  if (!claimId) return res.status(400).json({ ok: false, status: 'INVALID_CLAIM_ID' });
+
+  try {
+    const claimRows = db.normalizeRows(await db.query('select * from claim_requests where claim_id = $1 limit 1', [claimId]));
+    if (!claimRows.length) return res.status(404).json({ ok: false, status: 'CLAIM_NOT_FOUND' });
+    if (claimRows[0].status !== 'approved' && claimRows[0].status !== 'cards_published') {
+      return res.status(409).json({ ok: false, status: 'INVALID_STATUS', error: 'Claim must be approved before publishing cards.' });
+    }
+
+    const agents = db.normalizeRows(await db.query('select * from claim_agents where claim_id = $1 order by capability asc', [claimId]));
+    if (!agents.length) return res.status(409).json({ ok: false, status: 'NO_AGENTS_FOR_CLAIM' });
+
+    const existing = db.normalizeRows(await db.query('select * from agent_cards where claim_id = $1 order by ens asc', [claimId]));
+    if (existing.length) {
+      return res.status(200).json({ ok: true, claimId, status: 'CARDS_ALREADY_PUBLISHED', cards: existing.map((r) => ({ ens: r.ens, cardUrl: r.card_url })) });
+    }
+
+    const cards = [];
+    for (const agent of agents) {
+      const ens = String(agent.ens || '').trim();
+      const capability = String(agent.capability || '').trim();
+      const cardPath = `/agent-cards/agents/v${CARD_VERSION}/trust/${ens}.json`;
+      const cardUrl = `${BASE_URL}${cardPath}`;
+      const cardJson = buildCardJson(agent, ens, capability);
+
+      await db.query(
+        `insert into agent_cards (claim_id, ens, card_url, card_json, version, status)
+         values ($1, $2, $3, $4::jsonb, $5, 'published')
+         on conflict (card_url)
+         do update set
+           claim_id = excluded.claim_id,
+           ens = excluded.ens,
+           card_json = excluded.card_json,
+           version = excluded.version,
+           status = 'published',
+           updated_at = now()`,
+        [claimId, ens, cardUrl, JSON.stringify(cardJson), CARD_VERSION]
+      );
+
+      await db.query(
+        `update claim_agents
+         set card_url = $3,
+             card_status = 'published',
+             card_published_at = now()
+         where claim_id = $1 and id = $2`,
+        [claimId, agent.id, cardUrl]
+      );
+      cards.push({ ens, cardUrl });
+    }
+
+    await db.query("update claim_requests set status = 'cards_published' where claim_id = $1", [claimId]);
+    await db.query(
+      `insert into claim_events (claim_id, event_type, actor, message, event_json)
+       values ($1, 'agent_cards.published', 'admin', 'Agent cards published', $2::jsonb)`,
+      [claimId, JSON.stringify({ count: cards.length, cards })]
+    );
+    await db.query(
+      `insert into claim_status_transitions (claim_id, from_status, to_status, action, actor, reason, metadata_json)
+       values ($1, 'approved', 'cards_published', 'publish_agent_cards', 'admin', null, $2::jsonb)`,
+      [claimId, JSON.stringify({ cardCount: cards.length })]
+    );
+
+    return res.status(200).json({ ok: true, claimId, status: 'CARDS_PUBLISHED', cards });
+  } catch (error) {
+    console.error('ADMIN_PUBLISH_AGENT_CARDS_FAILED', { message: error.message, code: error.code, claimId });
+    const payload = { ok: false, status: 'ADMIN_PUBLISH_AGENT_CARDS_FAILED', error: 'Failed to publish agent cards.' };
+    if (process.env.NODE_ENV !== 'production') payload.debug = { message: error.message, code: error.code };
+    return res.status(500).json(payload);
+  }
+};
+
+function buildCardJson(agent, ens, capability) {
+  return {
+    type: 'erc8004/registration/v1',
+    name: ens,
+    description: `CommandLayer Trust Verification agent for ${capability}.`,
+    image: 'https://www.commandlayer.org/icon2.png',
+    services: [
+      { type: 'ens', endpoint: ens },
+      { type: 'commandlayer_runtime', endpoint: 'https://runtime.commandlayer.org' },
+      { type: 'commandlayer_verifier', endpoint: 'https://runtime.commandlayer.org/verify' }
+    ],
+    commandlayer: {
+      version: CARD_VERSION,
+      tenant: agent.tenant,
+      capability,
+      canonicalParent: agent.canonical_parent,
+      skill: agent.skill,
+      skillFamily: agent.skill_family,
+      kid: agent.kid,
+      publicKey: agent.public_key,
+      runtime: 'https://runtime.commandlayer.org',
+      verifier: 'https://runtime.commandlayer.org/verify'
+    },
+    registrations: []
+  };
+}
diff --git a/api/agent-cards/card.js b/api/agent-cards/card.js
new file mode 100644
index 0000000..4437824
--- /dev/null
+++ b/api/agent-cards/card.js
@@ -0,0 +1,29 @@
+'use strict';
+
+const db = require('../../lib/db');
+
+module.exports = async function handler(req, res) {
+  if (req.method !== 'GET') {
+    res.setHeader('Allow', 'GET');
+    return res.status(405).json({ ok: false, status: 'METHOD_NOT_ALLOWED' });
+  }
+
+  const ens = typeof req.query?.ens === 'string' ? req.query.ens.trim() : '';
+  const path = typeof req.query?.path === 'string' ? req.query.path.trim() : '';
+
+  if (!ens && !path) return res.status(400).json({ ok: false, status: 'INVALID_CARD_LOOKUP' });
+
+  try {
+    const rows = db.normalizeRows(await db.query(
+      'select card_json from agent_cards where ens = $1 or card_url like $2 limit 1',
+      [ens, `%${path}`]
+    ));
+    if (!rows.length) return res.status(404).json({ ok: false, status: 'CARD_NOT_FOUND' });
+    res.setHeader('Content-Type', 'application/json; charset=utf-8');
+    res.setHeader('Cache-Control', 'public, max-age=300');
+    return res.status(200).json(rows[0].card_json);
+  } catch (error) {
+    console.error('PUBLIC_AGENT_CARD_LOOKUP_FAILED', { message: error.message, code: error.code });
+    return res.status(500).json({ ok: false, status: 'PUBLIC_AGENT_CARD_LOOKUP_FAILED' });
+  }
+};
diff --git a/db/migrations/003_agent_cards.sql b/db/migrations/003_agent_cards.sql
new file mode 100644
index 0000000..7fa3d56
--- /dev/null
+++ b/db/migrations/003_agent_cards.sql
@@ -0,0 +1,20 @@
+alter table if exists claim_agents
+  add column if not exists card_url text,
+  add column if not exists card_status text,
+  add column if not exists card_published_at timestamptz;
+
+create table if not exists agent_cards (
+  id uuid primary key default gen_random_uuid(),
+  claim_id text not null references claim_requests(claim_id) on delete cascade,
+  ens text not null,
+  card_url text unique not null,
+  card_json jsonb not null,
+  version text not null default '1.1.0',
+  status text not null default 'published',
+  published_at timestamptz not null default now(),
+  updated_at timestamptz not null default now()
+);
+
+create index if not exists idx_agent_cards_claim_id on agent_cards (claim_id);
+create index if not exists idx_agent_cards_ens on agent_cards (ens);
+create index if not exists idx_agent_cards_card_url on agent_cards (card_url);
diff --git a/public/admin/claims.html b/public/admin/claims.html
index c951bdd..0529904 100644
--- a/public/admin/claims.html
+++ b/public/admin/claims.html
@@ -67,6 +67,19 @@ <h1>CommandLayer Claims Admin</h1>
     await loadDetail(selectedClaimId);
     await loadClaims();
   }
+  async function publishAgentCards() {
+    const res = await fetch('/api/admin/publish-agent-cards', { method: 'POST', headers: authHeaders(), body: JSON.stringify({ claimId: selectedClaimId }) });
+    const data = await res.json();
+    if (!res.ok || !data.ok) {
+      claimActionError = { status: data.status || 'REQUEST_FAILED', error: data.error || 'Request failed.', debug: data.debug || null };
+      await loadDetail(selectedClaimId);
+      return;
+    }
+    claimActionError = null;
+    await loadDetail(selectedClaimId);
+    await loadClaims();
+  }
+
   async function loadDetail(claimId) {
     selectedClaimId = claimId;
     const res = await fetch(`/api/admin/claim?claimId=${encodeURIComponent(claimId)}`, { headers: { Authorization: authHeaders().Authorization } });
@@ -94,8 +107,23 @@ <h3>Agents</h3><pre>${JSON.stringify(data.agents || [], null, 2)}</pre>`;
     }
     const mk = (label, cb) => { const b = document.createElement('button'); b.textContent = label; b.addEventListener('click', cb); actionRow.appendChild(b); };
     if (status === 'created') { mk('Approve', () => claimAction('approve', { notes: document.getElementById('notesInput').value })); mk('Reject', () => claimAction('reject', { reason: document.getElementById('reasonInput').value })); mk('Mark failed', () => claimAction('mark_failed', { reason: document.getElementById('reasonInput').value })); }
-    if (status === 'approved') { document.getElementById('nextStep').textContent = 'Next: Publish agent cards (placeholder)'; mk('Mark failed', () => claimAction('mark_failed', { reason: document.getElementById('reasonInput').value })); }
+    if (status === 'approved') { document.getElementById('nextStep').textContent = 'Next: Publish agent cards'; mk('Publish agent cards', () => publishAgentCards()); mk('Mark failed', () => claimAction('mark_failed', { reason: document.getElementById('reasonInput').value })); }
     if (status === 'rejected') { mk('Reopen / Approve (override)', () => claimAction('approve', { override: true, reason: document.getElementById('reasonInput').value, notes: document.getElementById('notesInput').value })); mk('Mark failed', () => claimAction('mark_failed', { reason: document.getElementById('reasonInput').value })); }
+    if (status === 'cards_published') {
+      const urls = (data.agents || []).map((a) => a.card_url).filter(Boolean);
+      document.getElementById('nextStep').textContent = 'Next: Stripe checkout / payment placeholder';
+      if (urls.length) {
+        const wrap = document.createElement('div');
+        wrap.innerHTML = `<h3>Published card URLs</h3><pre>${JSON.stringify(urls, null, 2)}</pre>`;
+        const row = document.createElement('div'); row.className = 'row';
+        const copyBtn = document.createElement('button'); copyBtn.textContent = 'Copy all card URLs';
+        copyBtn.addEventListener('click', async () => { await navigator.clipboard.writeText(urls.join('\n')); statusEl.textContent = 'Card URLs copied.'; });
+        const openBtn = document.createElement('button'); openBtn.textContent = 'Open first card';
+        openBtn.addEventListener('click', () => window.open(urls[0], '_blank'));
+        row.appendChild(copyBtn); row.appendChild(openBtn); wrap.appendChild(row);
+        detail.appendChild(wrap);
+      }
+    }
     if (status === 'failed') { document.getElementById('nextStep').textContent = 'Failed status: auto-retry is not enabled yet.'; }
     document.getElementById('saveNoteBtn').addEventListener('click', () => claimAction('add_note', { notes: document.getElementById('notesInput').value, reason: document.getElementById('reasonInput').value }));
     document.getElementById('refreshBtn').addEventListener('click', () => loadDetail(claimId));
diff --git a/tests/api-admin-publish-agent-cards.test.js b/tests/api-admin-publish-agent-cards.test.js
new file mode 100644
index 0000000..d8d8110
--- /dev/null
+++ b/tests/api-admin-publish-agent-cards.test.js
@@ -0,0 +1,92 @@
+'use strict';
+
+const test = require('node:test');
+const assert = require('node:assert/strict');
+
+function makeRes() { return { statusCode: 200, headers: {}, body: null, setHeader(n,v){this.headers[n.toLowerCase()]=v;}, status(c){this.statusCode=c;return this;}, json(p){this.body=p;return this;} }; }
+function normalizeRows(result) { if (Array.isArray(result)) return result; if (result && Array.isArray(result.rows)) return result.rows; return []; }
+
+function load(modulePath, mockQuery) {
+  const handlerPath = require.resolve(modulePath);
+  const dbPath = require.resolve('../lib/db');
+  delete require.cache[handlerPath]; delete require.cache[dbPath];
+  require.cache[dbPath] = { exports: { query: mockQuery, normalizeRows, getDatabaseUrl: () => process.env.DATABASE_URL } };
+  return require(modulePath);
+}
+
+test('publish cards missing ADMIN_API_KEY', async () => {
+  delete process.env.ADMIN_API_KEY;
+  const handler = load('../api/admin/publish-agent-cards', async () => []);
+  const res = makeRes();
+  await handler({ method: 'POST', headers: {}, body: { claimId: 'clm_1' } }, res);
+  assert.equal(res.statusCode, 503);
+});
+
+test('publish cards unauthorized', async () => {
+  process.env.ADMIN_API_KEY = 'secret';
+  const handler = load('../api/admin/publish-agent-cards', async () => []);
+  const res = makeRes();
+  await handler({ method: 'POST', headers: {}, body: { claimId: 'clm_1' } }, res);
+  assert.equal(res.statusCode, 401);
+});
+
+test('non-approved claim cannot publish cards', async () => {
+  process.env.ADMIN_API_KEY = 'secret';
+  const handler = load('../api/admin/publish-agent-cards', async (text) => String(text).includes('from claim_requests') ? [{ claim_id: 'clm_1', status: 'created' }] : []);
+  const res = makeRes();
+  await handler({ method: 'POST', headers: { authorization: 'Bearer secret' }, body: { claimId: 'clm_1' } }, res);
+  assert.equal(res.statusCode, 409);
+});
+
+test('approved claim publishes cards and updates status/event/transition', async () => {
+  process.env.ADMIN_API_KEY = 'secret';
+  const calls = [];
+  const handler = load('../api/admin/publish-agent-cards', async (text, params) => {
+    calls.push({ text: String(text), params });
+    if (String(text).includes('from claim_requests')) return [{ claim_id: 'clm_1', status: 'approved' }];
+    if (String(text).includes('from claim_agents')) return [{ id: 'a1', claim_id: 'clm_1', ens: 'a.signagent.eth', capability: 'trust-verification', tenant: 'commandlayer', canonical_parent: 'x', skill: 's', skill_family: 'sf', kid: 'k', public_key: 'pk' }];
+    if (String(text).includes('from agent_cards')) return [];
+    return [];
+  });
+  const res = makeRes();
+  await handler({ method: 'POST', headers: { authorization: 'Bearer secret' }, body: { claimId: 'clm_1' } }, res);
+  assert.equal(res.statusCode, 200);
+  assert.equal(res.body.status, 'CARDS_PUBLISHED');
+  assert.ok(calls.some((c) => c.text.includes('insert into agent_cards')));
+  assert.ok(calls.some((c) => c.text.includes('update claim_agents')));
+  assert.ok(calls.some((c) => c.text.includes("update claim_requests set status = 'cards_published'")));
+  assert.ok(calls.some((c) => c.text.includes("insert into claim_events") && c.text.includes('agent_cards.published')));
+  assert.ok(calls.some((c) => c.text.includes('insert into claim_status_transitions')));
+});
+
+test('idempotent publish returns existing cards', async () => {
+  process.env.ADMIN_API_KEY = 'secret';
+  const calls = [];
+  const handler = load('../api/admin/publish-agent-cards', async (text) => {
+    calls.push(String(text));
+    if (String(text).includes('from claim_requests')) return [{ claim_id: 'clm_1', status: 'approved' }];
+    if (String(text).includes('from claim_agents')) return [{ id: 'a1', ens: 'a.signagent.eth' }];
+    if (String(text).includes('from agent_cards')) return [{ ens: 'a.signagent.eth', card_url: 'https://www.commandlayer.org/agent-cards/agents/v1.1.0/trust/a.signagent.eth.json' }];
+    return [];
+  });
+  const res = makeRes();
+  await handler({ method: 'POST', headers: { authorization: 'Bearer secret' }, body: { claimId: 'clm_1' } }, res);
+  assert.equal(res.statusCode, 200);
+  assert.equal(res.body.status, 'CARDS_ALREADY_PUBLISHED');
+  assert.equal(calls.some((q) => q.includes('insert into agent_cards')), false);
+});
+
+test('public card route returns JSON', async () => {
+  const handler = load('../api/agent-cards/card', async () => [{ card_json: { ok: true } }]);
+  const res = makeRes();
+  await handler({ method: 'GET', query: { ens: 'a.signagent.eth', path: '/agent-cards/agents/v1.1.0/trust/a.signagent.eth.json' } }, res);
+  assert.equal(res.statusCode, 200);
+  assert.deepEqual(res.body, { ok: true });
+});
+
+test('public card route missing card returns 404', async () => {
+  const handler = load('../api/agent-cards/card', async () => []);
+  const res = makeRes();
+  await handler({ method: 'GET', query: { ens: 'missing.signagent.eth' } }, res);
+  assert.equal(res.statusCode, 404);
+});