Navan

Navan's Expense API is documented in HTML only (https://developer.navan.com/api/), with no machine-readable spec. developer.navan.com also hosts an MCP page (/mcp/).

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Navan Booking Data API

Verified

Format: OpenAPI 3.0 · 3.0.0
Source: Vendor
URL: https://app.navan.com/api/public-api.yml
Server: https://api.navan.com
Operations: 1
API version: 1
Last changed: 2 Nov 2026
sha256: d69399ae36acef2b… · 20 KB
Overlay: overlays/navan.yaml fixes 60 mistakes in the vendor's spec

Served behind Navan's Swagger UI (https://app.navan.com/swagger-ui/index.html, listed in /v3/api-docs/swagger-config). The spec declares no servers; calls go to api.navan.com with an OAuth 2.0 client-credentials token from https://app.navan.com/ta-auth/oauth/token (scope bookings:read). Date filters are Unix timestamps.