{"service":"Screwtape.ai","as_of":"2026-10","price_per_call_usd":"0.005","free_tier_calls_per_utc_day":100,"networks":[{"network":"eip155:8453","asset":"USDC","asset_address":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","rail":"x402"},{"network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","asset":"USDC","asset_address":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","rail":"x402"}],"auth":["Authorization: Bearer","PAYMENT-SIGNATURE"],"endpoints":["POST /v1/judge","POST /v1/consensus","POST /v1/signup"],"mcp_url":"https://screwtape.ai/mcp","input_limits":{"task_characters":8000,"output_characters":16000,"evidence_items":20,"evidence_item_characters":4000,"criteria_items":20,"criterion_characters":500,"answers_min":2,"answers_max":16,"agent_id_characters":80,"body_bytes":100000,"signup_name_characters":80,"signup_email_characters":200},"retention":{"opt_in":true,"requires_api_key":true,"duration_hours":24,"delete":"DELETE /v1/keys/me"},"priced_items":[{"id":"judge","name":"Judge","price_usd":"0.005","calls":1,"unit":"call","price_currency":"USD","availability":"https://schema.org/InStock","accepted_payment_method":["USDC on Base via x402","USDC on Solana via x402","PayPal"]},{"id":"consensus","name":"Consensus","price_usd":"0.005","calls":1,"unit":"call","price_currency":"USD","availability":"https://schema.org/InStock","accepted_payment_method":["USDC on Base via x402","USDC on Solana via x402","PayPal"]},{"id":"free","name":"Free","price_usd":"0","calls":100,"unit":"utc_day","price_currency":"USD","availability":"https://schema.org/InStock","accepted_payment_method":[]},{"id":"starter","name":"Starter","price_usd":"30","calls":10000,"unit":"pack","price_currency":"USD","availability":"https://schema.org/InStock","accepted_payment_method":["USDC on Base via x402","USDC on Solana via x402","PayPal"]},{"id":"builder","name":"Builder","price_usd":"100","calls":50000,"unit":"pack","price_currency":"USD","availability":"https://schema.org/InStock","accepted_payment_method":["USDC on Base via x402","USDC on Solana via x402","PayPal"]}],"facts":[{"key":"Price per call","value":"$0.005 USD for POST /v1/judge and POST /v1/consensus."},{"key":"Free tier","value":"100 calls per UTC day per key. FREE_DAILY_LIMIT defaults to 100."},{"key":"Networks and assets","value":"Base (eip155:8453) USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. Solana (solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp) USDC mint EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v."},{"key":"Auth","value":"Authorization: Bearer API key, or the x402 PAYMENT-SIGNATURE header. Signup is optional."},{"key":"Endpoints","value":"POST /v1/judge, POST /v1/consensus, and POST /v1/signup."},{"key":"MCP URL","value":"https://screwtape.ai/mcp"},{"key":"Input limits","value":"task 8000 characters; agent_output and consensus output 16000 characters; evidence up to 20 items of 4000 characters; criteria up to 20 items of 500 characters; answers 2 to 16; agent_id 80 characters; request body 100000 bytes; signup name 80 characters; signup email 200 characters."},{"key":"Data retention","value":"Judged content is not stored unless retain is true and the caller uses an API key. Keyless x402 calls cannot turn retention on. The default is 24 hours. A key can set retention_days to 0, 1, 30, or 90. Day 0 stores neither content nor receipts. DELETE /v1/keys/me deletes the key, its retained rows, and its receipt log."},{"key":"Independence","value":"Screwtape is not tied to an agent framework or a model provider. A successful judge or consensus call includes a signed receipt when receipt signing is configured. POST /v1/receipts/verify checks that receipt."},{"key":"Status","value":"GET /v1/status, /status.json, and /status/ report measured response time for judge and consensus. uptime is successful calls divided by successes, 5xx responses, and timeouts. It is null when that denominator is 0. Unpaid 402 responses are a separate count and are not failures. 401 and 429 responses are not failures either."}]}