# PairRail

> Make your pricing quotable by AI agents. Publish governed, machine-readable pricing. Buyer agents get deterministic, bounded quotes, and know exactly when a human needs to approve.

PairRail is seller-side pricing infrastructure. PairRail Atlas turns a seller's pricing page or CSV (plans, meters and discounts) into governed, versioned rules and serves them to buyer agents on the protocols they already use. PairRail publishes prices and approval rules; payments keep running through the seller's existing billing.

## How it works

1. Publish: import your pricing page or CSV. PairRail turns plans, meters and discounts into governed, versioned rules.
2. Agents quote: buyer agents browse offers and get deterministic quotes with explicit price bounds.
3. Humans approve: above your thresholds, the quote is flagged for a human. Agents never commit on their own.

Example: A100 80GB at 500 hrs × $1.89 = $945.00, reserved commitment −10% = −$94.50, egress 2 TB × $0.05/GB = $100.00. Total $950.50, price bounds $930.00 – $960.00, rule tier.verified / volume ≥ 400 hrs, catalog v42. This quote is below the seller's $5,000 threshold; above it, a person approves first.

## For agents

- Developer docs and API reference: https://www.pairrail.com/docs
- OpenAPI spec: https://www.pairrail.com/openapi.yaml
- MCP endpoint: POST https://www.pairrail.com/mcp?sellerId={sellerId} (JSON-RPC 2.0)
- Public catalog: GET https://www.pairrail.com/v1/public/catalog?sellerId={sellerId}
- Browsing, search and indicative pricing need no credentials. Quotes need a key the seller approved (POST /v1/access-requests, then poll with the pickup token).
- Quotes stay indicative and non-binding until approved and handed to the seller's own billing.

## Site

- Homepage: https://www.pairrail.com/
- Product: https://www.pairrail.com/product
- Protocols: https://www.pairrail.com/protocols
- Documentation: https://www.pairrail.com/docs
- Pricing: https://www.pairrail.com/pricing
- Interactive example: https://www.pairrail.com/demo
- Market shift: https://www.pairrail.com/market-shift
- About: https://www.pairrail.com/about
- FAQ: https://www.pairrail.com/faq
- Agent readiness score: https://www.pairrail.com/score
- Verify badge: https://www.pairrail.com/verify

## Protocols

Speaks the protocols agents already use. One catalog, served on MCP, UCP, ACP, A2A and UAP (Sandbox: MCP only, watermarked). AP2, MPP and x402 are on the roadmap; PairRail does not advertise a payable x402 route.

## Pricing (self-serve)

- Sandbox: $0. One catalog, watermarked MCP, a mock rehearsal of the billing handoff (no live payment rails).
- Pro: $59/month, or $49/month billed yearly ($588/year). India: ₹3,999/month or ₹39,999/year.
- Pro includes 25,000 queries/month, then $2 per 1,000 extra.
- Enterprise: custom contract. Signed DPA and questionnaires on request. SSO, residency and SLA terms are scoped in the order form.
- Source of truth: https://www.pairrail.com/pricing

## Works with your stack

PairRail does not replace CRM, CPQ, CLM or ERP. Atlas sends the approved quote to the seller's billing system: Stripe or Chargebee natively, or any other system through one signed webhook. Billing docs: https://www.pairrail.com/docs/billing. The seller's processor charges the buyer, exactly as it does today. Stripe or Chargebee products can be pulled into a catalog draft, and HubSpot gets quote writeback plus eligibility. Salesforce is next. Enterprise can honor signed contract pricing.

## Score your pricing, free

Paste a pricing page or price book. See what an agent can and can't quote in under a minute: https://www.pairrail.com/score

## Trust

- Support: https://www.pairrail.com/support
- Security: https://www.pairrail.com/legal/security
- Subprocessors: https://www.pairrail.com/legal/subprocessors
- Data processing terms: https://www.pairrail.com/legal/dpa

## Contact

- support@pairrail.com
- security@pairrail.com