Singular Server-to-Server (S2S) API

Server-side ingestion endpoints for reporting sessions/launches and in-app events without a client SDK — used for PC, console, CTV, web, and server-authoritative mobile integrations. Session notification at /api/v1/launch and event notification at /api/v2/evt. Responses always return HTTP 200; success is signalled by a body status field.

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/singular-server-to-server-s2s-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
name: Singular Server-to-Server (S2S) API
description: Server-side ingestion endpoints for reporting sessions/launches and in-app events without
  a client SDK — used for PC, console, CTV, web, and server-authoritative mobile integrations. Session
  notification at /api/v1/launch and event notification at /api/v2/evt. Responses always return HTTP 200;
  success is signalled by a body status field.
humanURL: https://support.singular.net/hc/en-us/articles/17499952586779-PC-Console-API-Endpoint-Reference
baseURL: https://s2s.singular.net
tags:
- Server-to-Server
- Event
- Attribution
tags_raw:
- Server-to-Server
- Events
- Attribution
properties:
- type: Documentation
  url: https://support.singular.net/hc/en-us/articles/31394799175963-Server-to-Server-SESSION-Endpoint-API-Reference
- type: APIReference
  url: https://support.singular.net/hc/en-us/articles/31496864868635-Server-to-Server-EVENT-Endpoint-API-Reference
- type: ErrorCatalog
  url: errors/singular-error-codes.yml
- type: Authentication
  url: authentication/singular-authentication.yml