# BIG Machine Market — Machine-native primitives

Machine-native checks from $0.001 USDC per successful execution. No subscription required for S0.1 primitives.
Full-product validation cohorts may offer free completed validations only while their individual slots remain open and evidence requirements are met. Availability is unknown and requires manual review; S0.1 primitives are not free.
Founding pricing applies only to the first 50 qualifying paid Product 001 full-capability transactions, subject to remaining cohort capacity, validation release and the existing contract.
When a primitive flags a meaningful delta, choose the next deeper offer only if needed. Higher stages retain their own availability, pricing and validation gates.
Newly launched; internally tested. External generalization evidence is still being collected.

State: VALIDATION_LAUNCH
Paid execution enabled: true
Browse the $0.001 primitive catalog. Create a purchase intent and pay only when /market.primitive_entry.paid_execution_enabled is true; otherwise paid execution is unavailable.
Buyer type: AI agents / autonomous software actors
Payment: x402 on Base mainnet, exact USDC price $0.001 per successful primitive execution
Rule: semantic eligibility is checked before billing; undecidable input returns 422 and is not quoted.
Purchase flow: POST /market/purchase-intents/{offer_id} first, retain purchase_intent_id + recovery token, then POST /market/primitives/{offer_id} with those credentials. Reloads/retries reuse that same intent.

For an existing episode, retain the original purchase_intent_id, secret recovery token and quote/payment lineage. GET /market/purchase-intents/status/{purchase_intent_id} with X-BIG-Purchase-Intent-Token or the original HttpOnly cookie; never put tokens in URLs or discovery. Status is authenticated, no-store and read-only, including while execution is disabled. Uncertain or stranded settlement requires reconciliation of the original episode, never another intent or payment. Polling status does not reconcile records. PAYMENT_REJECTED is terminal; do not retry payment.
Quickstart and stock x402 client integration: https://market.bruengerinvestmentgroup.com/market/quickstart
## Offers
### Check whether an AI interpretation differs from a human message; compare allowed versus not allowed permission values
Check whether an agent's current interpretation materially differs from the original human message. Bounded instruction comparison: exact text equality or explicit boolean and permission polarity mismatch. Binary 0/1 when decidable; abstains before billing otherwise.
Current deterministic scope: exact normalized text equality returns 0; true/false, yes/no, enabled/disabled, present/absent, required/not required and allowed/not allowed return 1. Other inputs abstain before billing. This is not general language interpretation, diagnosis or a similarity score.
Example input: {"HUMAN_MESSAGE":"allowed","CURRENT_INTERPRETATION":"not allowed"}
- P001-S0.1: INTERPRETATION_DELTA_EXISTENCE_CHECK; create intent: POST https://market.bruengerinvestmentgroup.com/market/purchase-intents/P001-S0.1; execute: POST https://market.bruengerinvestmentgroup.com/market/primitives/P001-S0.1; input=HUMAN_MESSAGE,CURRENT_INTERPRETATION; output=MATERIAL_INTERPRETATION_DELTA_EXISTS; next=P001-S1
### Check whether observed state differs from expected state; compare expected versus actual system state and enabled/disabled configuration values
Check whether an observed state materially differs from an expected state. Compare expected versus actual system state for exact text equality or explicit boolean and configuration polarity mismatch, such as enabled versus disabled. Binary 0/1 when decidable; abstains before billing otherwise.
Current deterministic scope: exact normalized text equality returns 0; true/false, yes/no, enabled/disabled, present/absent, required/not required and allowed/not allowed return 1. Other inputs abstain before billing. This is not general language interpretation, diagnosis or a similarity score.
Example input: {"EXPECTED_STATE":"enabled","OBSERVED_STATE":"disabled"}
- P002-S0.1: STATE_DELTA_EXISTENCE_CHECK; create intent: POST https://market.bruengerinvestmentgroup.com/market/purchase-intents/P002-S0.1; execute: POST https://market.bruengerinvestmentgroup.com/market/primitives/P002-S0.1; input=EXPECTED_STATE,OBSERVED_STATE; output=MATERIAL_STATE_DEVIATION_EXISTS; next=P002-S1

Catalog: https://market.bruengerinvestmentgroup.com/market/primitives
x402 manifest: https://market.bruengerinvestmentgroup.com/.well-known/x402
OpenAPI: https://market.bruengerinvestmentgroup.com/openapi.json
MCP manifest: https://market.bruengerinvestmentgroup.com/.well-known/mcp.json
MCP server: https://market.bruengerinvestmentgroup.com/mcp