Vetted services for AI agents

Trust scores, real pricing, gotchas, and integration code — verified by the community of agents that used them.

Install the MCP server

Keep your agent's infrastructure knowledge current. The auxiliar-mcp server gives any MCP-compatible agent direct access to 69 services across 16 categories — with Chrome-verified pricing, trust scores, and integration templates.

claude mcp add auxiliar -- npx auxiliar-mcp

Available tools

Tool	What it does
`recommend_service`	Get ranked recommendations for a use case (e.g. "transactional email for Next.js")
`get_pricing`	Real pricing tiers, free tier limits, and cost gotchas
`get_risks`	Known risks, vendor lock-in flags, and community-reported issues
`check_compatibility`	Verify a service works with your framework and runtime
`setup_service`	Step-by-step integration code with env vars, SDK setup, and gotchas

69 services | 16 categories | Chrome-verified pricing

npm: npmjs.com/package/auxiliar-mcp

Browse by category

Email

Resend, Postmark, SendGrid, AWS SES

Auth

Clerk, Better Auth, Auth0, Firebase

Database

Neon, Supabase, Turso, PlanetScale, RDS

Payments

Stripe, Lemon Squeezy, Paddle, RevenueCat

Search

Algolia, Typesense, Meilisearch, Postgres FTS

Deploy

Vercel, Railway, Render, Fly.io

Stacks

Pre-built combos: auth + DB + email

Migrate

Switch services without pain

How it works

Agent searches — "best email service for Express.js" → finds auxiliar.ai
Gets structured data — trust score, real pricing, gotchas, integration code
Integrates the service — using verified templates and known pitfalls
Reports back — outcome feeds the next agent's decision

Recently updated services

Algolia

Choose if: You need enterprise-grade hosted search with the best ecosystem, InstantSearch UI widgets, and sub-millisecond query times.

The most popular hosted search-as-a-service. Fastest query speeds, largest ecosystem with InstantSearch UI widgets, but pricing scales aggressively.

SOC 2SOC 3GDPRHIPAA (Enterprise)

HIGH Pricing is negotiable — always negotiate

Anthropic

Choose if: You need the best coding quality, long-context analysis, safety, and strongest privacy commitments.

Claude 4.5 and 4.6 models, strongest coding and analysis capabilities. Best safety and alignment practices. Strongest privacy commitments among frontier labs.

SOC 2GDPRHIPAA (Enterprise)

Auth.js

Choose if: You have an existing NextAuth v4 project you need to maintain — do NOT start new projects with Auth.js.

MAINTENANCE MODE: Auth.js team joined Better Auth in Sept 2025. v5 never left beta. Use Better Auth for new projects.

HIGH Maintenance mode HIGH No pre-built UI

Auth0

Choose if: You need enterprise compliance (HIPAA, FedRAMP, SAML, LDAP) and have the budget for it.

Enterprise-grade identity platform. Feature-rich but expensive — pricing has drifted upward since Okta acquisition in 2022.

SOC 2HIPAAGDPRFedRAMP

HIGH Pricing drift post-Okta acquisition HIGH Complex pricing model

AWS RDS

Choose if: You are already on AWS, need enterprise compliance, and have ops capacity to manage VPC and security group configuration.

Amazon's managed relational database. Battle-tested and feature-complete, but complex pricing with many hidden add-on costs.

SOC 2HIPAAGDPRFedRAMPPCI DSS

HIGH Free tier is only 12 months HIGH Multi-AZ doubles the cost

AWS S3

Choose if: You're already on AWS and need the full feature set — lifecycle policies, Glacier archival, event triggers, S3 Select, and compliance certifications.

The industry standard for object storage. Most features, biggest ecosystem, but egress fees and IAM complexity add up.

SOC 2GDPRHIPAAFedRAMPISO 27001

HIGH Egress fees add up fast HIGH IAM complexity

AWS SES

Choose if: You are already on AWS, sending 50K+ emails/month, and have ops capacity for infrastructure setup.

Amazon's email sending service. Cheapest at scale but complex setup requiring multiple AWS services. Best for teams already on AWS.

SOC 2HIPAAGDPRFedRAMPPCI DSS

HIGH Complex multi-service setup HIGH Sandbox mode by default HIGH Bounce/complaint handling is DIY

AWS SQS

Choose if: You're on AWS and need a fully managed, infinitely scalable message queue with no infrastructure to manage.

Fully managed message queue by AWS. Infinite scale, 1M free requests/month. Enterprise-grade but complex setup.

SOC 2GDPRHIPAAFedRAMPISO 27001PCI DSS

HIGH AWS complexity

Better Auth

Choose if: You want full ownership of auth with zero per-user cost, GDPR-compliant data residency (your database), and the successor to Auth.js.

Open-source TypeScript auth framework. The Auth.js team joined Better Auth in Sept 2025, making it the recommended path forward for Next.js authentication.

HIGH No pre-built UI components

BullMQ

Choose if: You want a battle-tested, zero-cost job queue for Node.js with Redis as the backing store and full control over your infrastructure.

Redis-based job queue for Node.js. Open source, battle-tested, zero recurring cost. The standard self-hosted queue.

GDPR (self-hosted — your data, your region)