Headless Oracle

Cryptographically signed market state verification for autonomous financial agents.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

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Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "headless-oracle": {
      "command": "npx",
      "args": [
        "-y",
        "headless-oracle-mcp"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

Headless Oracle

Ed25519-signed market-state attestations for 28 global exchanges.

What It Does

Autonomous trading agents need to know if an exchange is open before executing trades. Headless Oracle answers that question with a cryptographically signed receipt that any agent can verify independently — no trust in the operator required. UNKNOWN states are always treated as CLOSED (fail-closed).

Quick Start

bash

# MCP (Claude Desktop, Cursor, any MCP client)
npx headless-oracle-mcp

# REST API — demo receipt (no auth required)
curl https://headlessoracle.com/v5/demo?mic=XNYS

# Sandbox key (200 calls, 7 days, no card) - POST with an email
curl -X POST https://headlessoracle.com/v5/sandbox \
  -H 'Content-Type: application/json' \
  -d '{"email":"you@example.com"}'

Architecture

Single TypeScript Cloudflare Worker. Ed25519 signing via @noble/ed25519. Three KV namespaces (overrides, API keys, telemetry). Two Durable Objects (webhooks, SSE streams). Runs on Cloudflare's edge network - no origin server.

4-tier fail-closed: KV override check -> schedule engine -> UNKNOWN fallback -> unsigned critical failure.

See docs/architecture/overview.md for the full architecture.

API

Four MCP tools - get_market_status, get_market_schedule, list_exchanges, get_payment_options. Receipt verification is REST-only (POST /v5/verify) or offline with @headlessoracle/verify.

The REST surface is enumerated in the OpenAPI 3.1 spec, which is served live and is the list of record. Full references:

Exchanges

23 traditional markets (XNYS, XNAS, XLON, XJPX, XPAR, XHKG, XSES, XASX, XBOM, XNSE, XSHG, XSHE, XKRX, XJSE, XBSP, XSWX, XMIL, XIST, XSAU, XDFM, XNZE, XHEL, XSTO) plus 5 extended (XCBT, XNYM, XCBO, XCOI, XBIN). DST handled automatically via IANA timezone names. Lunch breaks, half-days, and holidays for 2026-2027.

Testing

Terminal

npm test              # the full unit/integration suite
npm run test:smoke    # 11 smoke tests against live production

The passing count is published by the worker itself at /v5/metrics/public as tests_passing, and CI fails if that number and the suite disagree. It is not restated here, because a number in a README is a number nothing checks.

Security

Ed25519 signatures on every response. 60-second receipt TTL. Fail-closed architecture (UNKNOWN = CLOSED). Security headers on all responses (HSTS, CSP, X-Content-Type-Options, X-Frame-Options).

See SECURITY.md for the responsible disclosure policy.

Documentation

Full documentation organized by audience:

Engineers: Architecture, API Reference, ADRs
Operations: Deployment, Monitoring, SLA
Legal: Terms of Service, Privacy Policy, IP Ownership
Business: Pricing, Competitive Analysis

See docs/README.md for the full index.

License

MIT — see LICENSE

Read the full README →View source on GitHub →

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Adoption & maintenance

Factual signals from GitHub, npm, and our automated checks — not a rating.

npm downloads

228

Package downloads in the last 30 days.

Last commit

1mo ago

Most recent push to the default branch.

Directory activity

1 views

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Frequently Asked Questions about Headless Oracle

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "headless-oracle": { "command": "npx", "args": ["-y","headless-oracle-mcp"] } }

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Technical Specs & Signals

CategoryFinance & Fintech

4/5 checks healthy over the last 45d

41Quality signal: Fair · 41/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools16/30

Adoption & activity5/15

Community engagement0/10

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Scanned 5d ago via OSV.dev · headless-oracle-mcp (npm)

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Documentation Overview

Headless Oracle

Ed25519-signed market-state attestations for 28 global exchanges.

What It Does

Quick Start

bash

# MCP (Claude Desktop, Cursor, any MCP client)
npx headless-oracle-mcp

# REST API — demo receipt (no auth required)
curl https://headlessoracle.com/v5/demo?mic=XNYS

# Sandbox key (200 calls, 7 days, no card) - POST with an email
curl -X POST https://headlessoracle.com/v5/sandbox \
  -H 'Content-Type: application/json' \
  -d '{"email":"you@example.com"}'

Architecture

4-tier fail-closed: KV override check -> schedule engine -> UNKNOWN fallback -> unsigned critical failure.

See docs/architecture/overview.md for the full architecture.

API

Four MCP tools - get_market_status, get_market_schedule, list_exchanges, get_payment_options. Receipt verification is REST-only (POST /v5/verify) or offline with @headlessoracle/verify.

The REST surface is enumerated in the OpenAPI 3.1 spec, which is served live and is the list of record. Full references:

Exchanges

Testing

Terminal

npm test              # the full unit/integration suite
npm run test:smoke    # 11 smoke tests against live production

Security

Ed25519 signatures on every response. 60-second receipt TTL. Fail-closed architecture (UNKNOWN = CLOSED). Security headers on all responses (HSTS, CSP, X-Content-Type-Options, X-Frame-Options).

See SECURITY.md for the responsible disclosure policy.

Documentation

Full documentation organized by audience:

Engineers: Architecture, API Reference, ADRs
Operations: Deployment, Monitoring, SLA
Legal: Terms of Service, Privacy Policy, IP Ownership
Business: Pricing, Competitive Analysis

See docs/README.md for the full index.

License

MIT — see LICENSE