Alternatives
10 best Stigg alternatives
Tools that cover the same task as Stigg (billing), ranked by how completely their pricing, free tier and API access are documented. Checked Oct 4, 2026.
- Stigg starts at
- $399/mo
- Free plan
- Free plan
- API
- API available
- 01
Autumn
Autumn is billing infrastructure for AI startups that syncs Stripe payments with usage limits, credits, entitlements, and subscription state through one API. It targets teams tired of rebuilding metering, access control, and webhook logic by hand.
Best for: AI startups and SaaS teams that need usage-based billing, credits, and entitlements without maintaining custom Stripe webhook plumbing.
- 02
Hook Relay
Hook Relay provides webhooks-as-a-service with reliable delivery, retries, payload logging, SSRF protections, and debugging for outbound webhook integrations. It targets teams that want Stripe-quality webhook infrastructure without building a custom backend.
Best for: SaaS vendors and integrators adding customer-facing webhooks with observability and retry policies.
- 03
WorkOS
WorkOS helps SaaS companies add enterprise-ready authentication features such as SSO, Directory Sync, MFA, Audit Logs, and AuthKit user management with minimal integration code. The platform targets staging and production environments with modular APIs for B2B customer IT requirements.
Best for: B2B software vendors selling to enterprise customers who need SSO, SCIM, compliance logging, and self-serve IT onboarding.
- 04
Agno
Agno is a self-driving agent platform with an open Agent SDK, AgentOS runtime, and control plane that runs in your cloud. Teams build and serve customer-facing or internal agents with sessions, traces, memory, knowledge, evals, and integrations to Claude Code, Codex, and Cursor.
Best for: Platform engineers owning agent infrastructure in their own cloud who want a control plane without usage-based egress fees.
- 05
Voker
Voker is an analytics platform for AI agents in production, capturing intents, corrections, and resolutions from live conversations. SDKs wrap popular LLM providers so teams can monitor agent quality without digging through raw logs.
Best for: Product and engineering teams shipping customer-facing AI agents who need usage analytics and optimization signals.
- 06
Bubble
Bubble is a visual no-code platform for building web and mobile applications with databases, workflows, design tools, and AI-assisted development in a hosted workspace.
Best for: Founders and product teams shipping full-stack apps without traditional code who need Bubble-hosted infrastructure.
- 07
AilaFlow
AilaFlow is a self-hosted AI workspace where administrators define workflows, permissions, and human approval gates while teams execute work through chat and forms. It targets business processes such as purchase approvals, onboarding, invoice review, and incident response with optional Docker-based installation.
Best for: Teams that need governed AI automation on their own infrastructure without per-execution SaaS metering.
- 08
Doppio
Doppio is a managed HTML-to-PDF and screenshot API that renders documents without self-hosting Puppeteer. It offers Chromium-based rendering, direct S3 upload, webhooks, templates, and EU-hosted infrastructure for production PDF and PNG generation at scale.
Best for: SaaS teams and agencies that need reliable PDF or screenshot generation from HTML templates in production.
- 09
Vendo
Vendo embeds an open-source agent inside SaaS products so end users can automate work, build views, and connect tools under tenant guardrails. Pricing includes a free developer tier with included usage credits and paid Pro or Teams plans with publishing, tenant orgs, governance, and published token rates.
Best for: Product teams adding in-app AI copilots, automations, and tenant-scoped integrations without rebuilding agent infrastructure.
- 10
PropelAuth
PropelAuth provides authentication and org management built for B2B and AI-native products. The platform covers hosted login UIs, SAML and enterprise SSO, RBAC, API keys, and MCP authentication so teams can ship secure multi-tenant apps faster.
Best for: B2B SaaS and AI-native companies that need multi-tenant auth, enterprise SSO, and org management without building it in-house.
Stigg alternatives: common questions
What is the best free alternative to Stigg?
Autumn has an ongoing free plan. Free tier includes 8K monthly billing volume, 10,000 customers and entities, and 10M API requests with CLI, MCP, and community support. Free plans change, so check the vendor before relying on one.
What is the cheapest Stigg alternative?
Doppio has the lowest listed starting price at $16/mo, compared with $399/mo for Stigg.
Which Stigg alternatives have an API?
Autumn, Hook Relay, WorkOS, Agno, Bubble mention API or developer access.