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AgentLedger

warnings

agent-ledger-production-0ff8.up.railway.app

Per-agent spend management: x402/MPP/API-key rails, budget caps, anomaly alerts, audit trails.

https://agent-ledger-production-0ff8.up.railway.app/mcp/WebsiteNo authMCP 2025-11-25v0.4.7last checked 22 Oct 2026spoke MCP on 98.9% of 88 checks (30 days)initialize in 275 ms

Last checked 22 Oct 2026

  • ✓Answered the MCP handshake (MCP 2025-11-25)
  • ✓Auth detected: No auth
  • ✓Lists 18 tools
  • !1 warning
  • !Spoke MCP on 87 of 88 checks (30 days)

Will my client connect?

Decided from what the probe found at the endpoint, and from what each client's own documentation says it can complete. Every row carries the day that documentation was read.

✓Claude CodeConnects

The endpoint answers an anonymous handshake, so no credential is needed.

claude mcp add --transport http agentledger https://agent-ledger-production-0ff8.up.railway.app/mcp/

Claude Code docs · read on 2026-08-30

✓Claude (claude.ai & Desktop)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Connectors → Add custom connector, then paste https://agent-ledger-production-0ff8.up.railway.app/mcp/.

Claude (claude.ai & Desktop) docs · read on 2026-08-30

✓ChatGPTConnects

The endpoint answers an anonymous handshake, so no credential is needed.

Settings → Apps → Advanced settings → Developer mode, then create a connector pointing at https://agent-ledger-production-0ff8.up.railway.app/mcp/.

ChatGPT docs · read on 2026-08-30

✓CursorConnects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "mcpServers": {
    "agentledger": {
      "url": "https://agent-ledger-production-0ff8.up.railway.app/mcp/"
    }
  }
}

Cursor docs · read on 2026-08-30

✓VS Code (Copilot)Connects

The endpoint answers an anonymous handshake, so no credential is needed.

{
  "servers": {
    "agentledger": {
      "type": "http",
      "url": "https://agent-ledger-production-0ff8.up.railway.app/mcp/"
    }
  }
}

VS Code (Copilot) docs · read on 2026-08-30

How to authenticate

Checked against the endpoint by our probe on 22 Oct 2026. These are the capabilities the server advertises, not a prediction about any particular client.

Scheme
No auth
Protected-resource metadata
✕Not found

Without it a client has to guess where the authorization server lives.

Anonymous access
Handshake succeeds; 18 tools listable
Credentials demanded in prose
✕ledger_rotate_secret, ledger_revoke_secret, ledger_report, ledger_alerts, ledger_wait_events, ledger_approval_decide, ledger_start

These tools are listed anonymously and their own descriptions ask for an account or key, but no challenge is issued — so a client has nothing to act on and the refusal arrives as a tool error.

What the probe found

warningTools needing credentials are listed without a challenge

7 of the 18 tools listed anonymously say in their own descriptions that they need an account or a key (ledger_rotate_secret, ledger_revoke_secret, ledger_report, ledger_alerts, ledger_wait_events, ledger_approval_decide, ledger_start), but the endpoint issued no WWW-Authenticate challenge. The requirement is stated only in prose, so a call reaches the tool and comes back as a tool error instead of an authorization step.

No CORS headers for browser-based clients

A cross-origin preflight came back without Access-Control-Allow-Origin, so the endpoint is reachable from native clients only — code running in a web page is stopped by the browser before a request is ever sent.

Tools

ledger_alertsledger_api_docsledger_approval_decideledger_approvalsledger_check_spendledger_examplesledger_priceledger_proxy_attachledger_reportledger_request_approvalledger_revoke_secretledger_rotate_secretledger_set_budgetledger_startledger_trackledger_wait_eventsread_skillskills_list_tool

Contract history

12 Oct 2026v0.4.71 cosmeticinstructions rewritten

Instructions rewritten: ledger_start. The description an agent follows changed; the callable contract may not have.

11 Oct 2026v0.4.71 compatible1 cosmetic
10 Oct 2026v0.4.6no contract changes
10 Oct 2026v0.4.51 cosmeticinstructions rewritten

Instructions rewritten: ledger_set_budget. The description an agent follows changed; the callable contract may not have.

9 Oct 2026v4.1.03 compatible
5 Oct 2026v4.0.11no contract changes
2 Oct 2026v4.0.101 cosmeticinstructions rewritten

Instructions rewritten: ledger_track. The description an agent follows changed; the callable contract may not have.

27 Sep 2026v4.0.101 breaking2 compatible

Breaking: ledger_list_agents

27 Sep 2026v4.0.101 compatible
24 Sep 2026v4.0.9no contract changes
19 Sep 2026v4.0.51 compatible
17 Sep 2026v4.0.5no contract changes
17 Sep 2026v4.0.31 compatible
15 Sep 2026v4.0.31 breaking

Breaking: skill://agent-ledger/agent-ledger/SKILL.md

14 Sep 2026v4.0.33 compatible
13 Sep 2026v4.0.32 compatible
12 Sep 2026v4.0.34 compatible1 cosmeticinstructions rewritten

Instructions rewritten: ledger_alerts, ledger_list_agents, ledger_report, ledger_set_budget, ledger_track. The description an agent follows changed; the callable contract may not have.

10 Sep 2026v4.0.31 compatible1 cosmeticinstructions rewritten

Instructions rewritten: ledger_api_docs, ledger_set_budget. The description an agent follows changed; the callable contract may not have.

10 Sep 2026v4.0.32 compatible
8 Sep 2026v4.0.33 compatibleinstructions rewritten

Instructions rewritten: ledger_list_agents, ledger_set_budget, ledger_track. The description an agent follows changed; the callable contract may not have.

8 Sep 2026v4.0.31 compatibleinstructions rewritten

Instructions rewritten: ledger_track. The description an agent follows changed; the callable contract may not have.

7 Sep 2026v4.0.35 cosmeticinstructions rewritten

Instructions rewritten: ledger_alerts, ledger_list_agents, ledger_report, ledger_set_budget, ledger_track. The description an agent follows changed; the callable contract may not have.

7 Sep 2026v4.0.3first recorded contract

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Status badge

Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.

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