g2.com
G2 is a B2B software marketplace and review platform that publishes software category rankings, product comparisons, reports, and verified peer reviews. It also offers partner-facing data access for product, review, and buyer-intent information.
G2 exposes a documented REST API with an OpenAPI spec at data.g2.com and a streamable-HTTP MCP server at mcp.g2.com, both authenticated via G2-issued tokens/OAuth.
- G2 MCP Serverdiscovered
- G2 APIdiscovered
Create or log into your organization in the G2 Developer Portal. To mint a token, open the Access Tokens tab, choose Generate Token, name the token, choose a Resource Owner (User or Organization), assign endpoint permissions, and save. The portal reveals the token once; copy it and store it securely. G2's docs say you can then use it against the G2 API reference.
Create or log into your organization in the G2 Developer Portal. In OAuth Apps, select New OAuth App, enter the app name, privacy-policy URL, terms-of-service URL, and redirect URL, optionally mark it Confidential if it can store a secret, choose endpoint Permissions, and save. Open the app's Details view to copy the Client ID and Secret. Use those with G2's OAuth flow (https://www.g2.com/oauth/authorize and https://www.g2.com/oauth/token) and request only scopes matching the permissions enabled for the app. Example documented scopes include openid, profile, products.read, and products.reviews.read.
conventions · 2/8 published
- integrations.json✗
/.well-known/integrations.json - llms.txt✓https://g2.com/llms.txt
- API catalog✗
/.well-known/api-catalog - OpenAPI document✗
/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json - MCP server card✗
/.well-known/mcp/server-card.json - OAuth protected resource✓https://g2.com/.well-known/oauth-protected-resource
- Agent card✗
/.well-known/agent-card.json - Agent skills✗
/.well-known/agent-skills/index.json
Publish these signals → /publishing