# BillGO

> BillGO is a Fort Collins, Colorado bill-payment technology company founded in 2015 that
> operates a real-time payments network connecting financial institutions, fintechs and
> billers. Its BillGO Exchange platform lets billers of any size receive electronic
> payments over ACH and one-time-use virtual cards instead of paper checks, and lets banks
> and credit unions embed real-time bill pay into their own applications.

Generated by API Evangelist on 2026-08-07 from the public BillGO surface. BillGO does not
publish an llms.txt of its own — /llms.txt returns 404 on billgo.com and a soft-404 HTML
shell on exchange.billgo.com and start.billgo.com.

## APIs

- [BillGO Exchange GraphQL API](https://exchange.billgo.com/graphql): Live GraphQL endpoint
  behind the BillGO Exchange biller portal. POST returns spec-shaped GraphQL responses; GET
  returns 405. Schema introspection is disabled by the server, so no SDL is available.

## Specs

BillGO publishes no OpenAPI, AsyncAPI, GraphQL SDL, JSON Schema or Postman collection at any
public URL. The developer reference is a private ReadMe project: https://docs.billgo.com/
returns HTTP 302 to https://dash.readme.com/to/billgo-group for anonymous visitors.

## Authentication

- [OpenID Connect discovery](https://exchange-login.billgo.com/oauth2/default/.well-known/openid-configuration):
  Okta-hosted OIDC for BillGO Exchange. Authorization Code with PKCE (S256), refresh tokens,
  RS256 ID tokens.
- [OAuth 2.0 authorization server metadata](https://exchange-login.billgo.com/.well-known/oauth-authorization-server): RFC 8414.

## Docs

- [BillGO](https://billgo.com/)
- [Developer documentation (login required)](https://docs.billgo.com/)
- [BillGO Exchange portal](https://exchange.billgo.com/login)
- [BillGO Exchange resource hub](https://billgo.com/billgo-exchange-resource-hub)
- [BillGO Exchange FAQ](https://lp.billgo.com/exchange-faq)
- [Get started](https://start.billgo.com/)
- [Security](https://billgo.com/security)
- [Status](https://billgo.statuspage.io/)
- [Blog](https://billgo.com/blog)
- [Contact](https://billgo.com/contact)
- [Terms and conditions](https://billgo.com/terms-and-conditions)
- [Privacy policy](https://billgo.com/privacy-policy)

## API Evangelist artifacts

- [apis.yml](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/apis.yml)
- [Authentication profile](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/authentication/billgo-authentication.yml)
- [OAuth scopes](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/scopes/billgo-scopes.yml)
- [API conventions](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/conventions/billgo-conventions.yml)
- [Conformance](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/conformance/billgo-conformance.yml)
- [Lifecycle](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/lifecycle/billgo-lifecycle.yml)
- [Well-known index](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/well-known/billgo-well-known.yml)
- [Domain security](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/security/billgo-domain-security.yml)
- [Trust and compliance](https://raw.githubusercontent.com/api-evangelist/billgo/refs/heads/main/security/billgo-trust-center.yml)

## Not published

No MCP server, no A2A agent card (/.well-known/agent-card.json and /.well-known/agent.json
miss on every BillGO host), no security.txt, no public changelog, no CLI, no first-party SDK
on npm, PyPI or any other registry, and no first-party GitHub organization.