# S.I.G.N.S. / MARS

MARS Economic is the buyer-commerce and deal-routing layer inside S.I.G.N.S.

## Canonical buyer flow
1. FREE quote: GET or POST https://mars-economic-agent-gateway.mars-economic.workers.dev/api/commerce/quote
2. Read evidence: https://mars-economic-agent-gateway.mars-economic.workers.dev/api/commerce/reputation
3. Read economic-buyer qualification policy: https://mars-economic-agent-gateway.mars-economic.workers.dev/.well-known/buyer-capability.json
4. If a paid tier is selected, make one paid x402 call to the returned execute.url
5. Paid resource is released only after confirmed settlement
6. Submit structured feedback or use https://mars-economic-agent-gateway.mars-economic.workers.dev/api/commerce/recover

## Economic buyer audience
MARS prioritizes verified economic buyers. Self-declared wallet/payment capabilities are not proof.
Minimum qualified class: PAYMENT_VERIFIED.
Self capability endpoint: https://mars-economic-agent-gateway.mars-economic.workers.dev/api/commerce/buyer-capability

## Primary machine-buyable offer
Descriptor: https://mars-economic-agent-gateway.mars-economic.workers.dev/.well-known/external-buyer-conversion.json
Funnel: https://mars-economic-agent-gateway.mars-economic.workers.dev/api/commerce/external-buyer-funnel
MCP tool: mars_micro_commercial_intelligence_offer
Price: 0.01 USDC on Base Mainnet
Deliverable: 2-3 named counterparties with public evidence plus compact decision summary
No MARS account or subscription required. Retry the SAME tools/call with _meta["x402/payment"].
External payer is counted only when settled payer differs from MARS payTo.

## MCP
Endpoint: https://mars-economic-agent-gateway.mars-economic.workers.dev/mcp
Start tool: mars_commerce_quote
Evidence tool: mars_commerce_reputation
Recovery tool: mars_commerce_recover
Deal precheck tool: mars_deal_route_precheck

## Fixed value contracts
FREE_SAMPLE: 0 USDC
MICRO_PROOF: 0.01 USDC - 2-3 named counterparties with public evidence plus compact decision summary
FULL_INTELLIGENCE: 0.05 USDC - up to 10 evidence-ranked results plus decision pack on the canonical route

OpenAPI: https://mars-economic-agent-gateway.mars-economic.workers.dev/openapi.json
Commerce descriptor: https://mars-economic-agent-gateway.mars-economic.workers.dev/.well-known/mars-commerce.json
x402: https://mars-economic-agent-gateway.mars-economic.workers.dev/.well-known/x402-mainnet.json
A2A discovery: https://mars-economic-agent-gateway.mars-economic.workers.dev/.well-known/agent.json
S.I.G.N.S.: https://mars-economic-agent-gateway.mars-economic.workers.dev/.well-known/signs.json

Policy: MARS is INTERMEDIARY_ONLY. Free quote/reputation/recovery tools never move money or contact counterparties.