Off-Nadir Delta MCP

From first signal to satellite evidence. Give an AI agent a live intelligence workflow: discover an event, verify the reporting, identify what evidence is missing, determine whether a satellite can actually resolve it, and produce a collection-ready plan.

Real-time event and geospatial intelligence for OSINT, geopolitical risk, and GEOINT work — source-linked, geolocated, and current, not a training snapshot.

22 tools · MCP server version 5.1.0 · full reference

What it does

Seeing the event is easy. Knowing what you can prove — and what evidence is still missing — is the product. Delta:

• monitors emerging world events and geolocates them
• checks claims against source-linked open data, and reports the source breadth behind each one
• assesses whether the event is observable from space, at what resolution, and by which sensor
• returns a collection-ready recommendation: what to collect, where, and when

Connect

Hosted server — recommended

No install. Point any MCP client at the remote endpoint and approve once over OAuth 2.1 (Dynamic Client Registration is supported, so most clients need only the URL):

https://offnadir-delta.com/api/v1/mcp

In the Claude or ChatGPT apps: Settings → Connectors → Add custom connector, paste that URL. Cursor and VS Code have one-click installs on the docs page.

Claude Code:

claude mcp add --transport http off-nadir-delta https://offnadir-delta.com/api/v1/mcp

This package — local stdio

Use this when your client cannot do remote OAuth, or you would rather hold an API key in an environment variable and pin a version. Get a key at offnadir-delta.com/account/api.

{
  "mcpServers": {
    "off-nadir-delta": {
      "command": "npx",
      "args": ["-y", "offnadir-delta-mcp"],
      "env": { "OFFNADIR_DELTA_API_KEY": "ond_..." }
    }
  }
}

Docker:

docker run -i --rm -e OFFNADIR_DELTA_API_KEY=ond_... offnadir-delta-mcp

The package forwards tools/call to the hosted server with your key. tools/list answers locally from a generated catalog, so registries can introspect it without credentials.

First call — free

11 of the 22 tools cost nothing, so the first thing you run is free:

Give me the latest Daily World Brief. Lead with the three most significant developments, explain why each matters, and cite the supporting signals.

Then try the full signal-to-satellite workflow:

Find the highest-priority observable event from the last 24 hours, verify the reporting, and recommend the best available satellite collection plan.

Tools

Discover

What is happening, what changed, and what today looks like.

Plan

Whether a satellite can resolve it, which one, and when it next passes.

Analyze

Turn reporting into a cited assessment you can audit afterwards.

Watch

Stand up continuous coverage and be told only when the answer changes. Creating and listing cost nothing — you are metered only when a check actually fires, or a new acquisition is actually measured.

Account

Pre-flight your token balance before a metered call.

Pricing and metering

Usage-based Delta tokens, identical over REST and MCP. Costs above are generated from the same constant the biller reads, and every metered result carries the exact charge it incurred — so you never have to trust a number in a README. Free tools never touch the balance.

ask_analyst is hybrid-async: it enqueues a run and returns a job_id immediately; poll get_analyst_job (free — the run is charged once, on completion). Most questions finish in ~30–90s; a brief with satellite-imagery lookups or many sources can take 2–3 minutes.

The API and the MCP server are available on every plan, including Free — the only gate is your token balance. Call get_usage (free) to pre-flight. Current limits and package prices: offnadir-delta.com/pricing.

Authentication

Two credentials are accepted on the hosted endpoint:

• OAuth 2.1 with PKCE and Dynamic Client Registration — for interactive clients
• Bearer API key (Authorization: Bearer ond_...) — for servers, CI, and this stdio package

Keys are shown once at creation, hashed at rest, and revocable at any time from /account/api.

Resources

Links

• Tool reference, setup, and one-click installs
• REST API reference · OpenAPI
• Changelog and compatibility policy
• Live server version probe (no auth, no tokens)

License

Apache-2.0