{"protocol":"mpp","version":"1.0","scheme":"Payment","spec":"https://paymentauth.org","provider":{"name":"Kevros Runtime Intelligence","organization":"TaskHawk Systems","url":"https://governance.taskhawktech.com"},"payment_methods":["tempo","stripe","lightning","solana"],"primary_method":"tempo","methods":{"tempo":{"description":"pathUSD stablecoin on Tempo  -  sub-second settlement, no minimum","intent":"charge","currency":"0x20c0000000000000000000000000000000000000","chain_id":4217,"recipient":"0xCDA1a331C72bd45E4700B18b5311AA459D13d3E3","minimum_amount":"0"},"stripe":{"description":"Card/bank payments via Stripe","intent":"charge","currency":"usd","minimum_amount":"50","challenge_url":"https://governance.taskhawktech.com/stripe/mpp-challenge"},"lightning":{"description":"Bitcoin micropayments via Lightning Network","intent":"charge","currency":"BTC","minimum_amount":"0"},"solana":{"description":"USDC on Solana  -  SPL token payments","intent":"charge","currency":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","recipient":"","minimum_amount":"0"}},"challenge_flow":{"description":"1. POST to any paid endpoint without Authorization -> 402 with WWW-Authenticate: Payment challenge(s). 2. Agent chooses a method and fulfills payment off-band. 3. Re-POST with Authorization: Payment <credential>. 4. Server verifies and returns 200 with Payment-Receipt.","auth_header":"Authorization","auth_scheme":"Payment","receipt_header":"Payment-Receipt","challenge_ttl_seconds":600},"credits_url":"https://governance.taskhawktech.com/stripe/checkout?tier=credits","resources":[{"url":"https://governance.taskhawktech.com/governance/verify","method":"POST","x-payment-info":{"intent":"charge","method":"tempo","amount":"10000","currency":"0x20c0000000000000000000000000000000000000","description":"Action verification  -  signed ALLOW/CLAMP/DENY"},"price_usd":0.01,"description":"Action verification  -  signed ALLOW/CLAMP/DENY","stripe_note":"Stripe batched: $0.50 charge = 50 calls @ $0.01 each. Tempo and Lightning handle single-call micro-payments."},{"url":"https://governance.taskhawktech.com/governance/attest","method":"POST","x-payment-info":{"intent":"charge","method":"tempo","amount":"20000","currency":"0x20c0000000000000000000000000000000000000","description":"Provenance attestation  -  hash-chained evidence"},"price_usd":0.02,"description":"Provenance attestation  -  hash-chained evidence","stripe_note":"Stripe batched: $0.50 charge = 25 calls @ $0.02 each. Tempo and Lightning handle single-call micro-payments."},{"url":"https://governance.taskhawktech.com/governance/bind","method":"POST","x-payment-info":{"intent":"charge","method":"tempo","amount":"20000","currency":"0x20c0000000000000000000000000000000000000","description":"Intent binding  -  cryptographic intent-to-command proof"},"price_usd":0.02,"description":"Intent binding  -  cryptographic intent-to-command proof","stripe_note":"Stripe batched: $0.50 charge = 25 calls @ $0.02 each. Tempo and Lightning handle single-call micro-payments."},{"url":"https://governance.taskhawktech.com/governance/bundle","method":"POST","x-payment-info":{"intent":"charge","method":"tempo","amount":"50000","currency":"0x20c0000000000000000000000000000000000000","description":"Compliance bundle  -  portable evidence package"},"price_usd":0.05,"description":"Compliance bundle  -  portable evidence package","stripe_note":"Stripe batched: $0.50 charge = 10 calls @ $0.05 each. Tempo and Lightning handle single-call micro-payments."},{"url":"https://governance.taskhawktech.com/governance/batch","method":"POST","x-payment-info":{"intent":"charge","method":"tempo","amount":"10000","currency":"0x20c0000000000000000000000000000000000000","description":"Batch operations  -  multiple governance calls"},"price_usd":0.01,"description":"Batch operations  -  multiple governance calls","stripe_note":"Stripe batched: $0.50 charge = 50 calls @ $0.01 each. Tempo and Lightning handle single-call micro-payments."},{"url":"https://governance.taskhawktech.com/media/attest","method":"POST","x-payment-info":{"intent":"charge","method":"tempo","amount":"50000","currency":"0x20c0000000000000000000000000000000000000","description":"Media attestation  -  PQC-signed certificate"},"price_usd":0.05,"description":"Media attestation  -  PQC-signed certificate","stripe_note":"Stripe batched: $0.50 charge = 10 calls @ $0.05 each. Tempo and Lightning handle single-call micro-payments."},{"url":"https://governance.taskhawktech.com/shield/scan","method":"POST","x-payment-info":{"intent":"charge","method":"tempo","amount":"10000","currency":"0x20c0000000000000000000000000000000000000","description":"Prompt injection detection  -  DeBERTa classifier"},"price_usd":0.01,"description":"Prompt injection detection  -  DeBERTa classifier","stripe_note":"Stripe batched: $0.50 charge = 50 calls @ $0.01 each. Tempo and Lightning handle single-call micro-payments."}],"also_accepts":["x402","L402"],"discovery":{"openapi":"https://governance.taskhawktech.com/openapi.json","agent_card":"https://governance.taskhawktech.com/.well-known/agent.json","x402":"https://governance.taskhawktech.com/.well-known/x402","l402":"https://governance.taskhawktech.com/.well-known/l402","mpp":"https://governance.taskhawktech.com/.well-known/mpp","llms":"https://governance.taskhawktech.com/for-agents.txt"}}