{"name": "Futility Breaker: evidence-bound stopping for agents", "provider": "TextForAgents LLC", "support": "support@textforagents.com", "slug": "futility-breaker-evidence-bound-stopping", "what": "A hosted judgment ledger records your agent's own per-result usefulness labels per source; after a per-domain threshold of consecutive useless judgments (retrieval 5, database 3, code 4, web 5) the service returns a binding CONTINUE / STOP-SOURCE / INTEGRATE-NOW / ABSTAIN verdict, with an HMAC-signed abstention receipt as the ABSTAIN deliverable. Counters are sybil-proof: operator-registered source identities with alias resolution plus a per-(run, domain) aggregate streak \u2014 renaming a dead source cannot reset its futility evidence, and only a useful result resets a streak.", "limits": "Honest limits, stated plainly (LABREPORT-066): every fixed threshold false-stops a source that would recover after it \u2014 the calibration sweep quantified this (fixed-7 alone spares a source recovering at 6). The adaptive threshold variant was measured and is NOT shipped (it false-stops every recovering trace earliest). The waste cut is proven when the harness obeys the binding verdict; the waste report counts tokens when a harness disobeys.", "prices": {"per_verdict_usd": 0.002, "operator_usd_per_month": 9, "operator_verdicts_included_per_month": 9000, "fleet_usd_per_month": 29, "fleet_verdicts_included_per_month": 29000, "verdicts_beyond_included_usd": 0.002}, "trial": "First 1,000 verdict calls free, one time per operator account, enforced per account AND per payer wallet; a second account for the same operator does not re-grant. After the grant, the tier/API price applies to every verdict. There is no perpetual free tier.", "how_to_start": "POST /register {account_name, payer_wallet} -> per-customer token (shown once, SHA-256 at rest). POST /run (Bearer) to register a run with its source identities + aliases and alternatives; POST /judge (Bearer) records one usefulness judgment and returns the binding verdict \u2014 the first 1,000 verdict calls are the one-time trial, an active Operator/Fleet tier covers verdicts to its included count, and any other verdict call is x402 at $0.002 (X-PAYMENT header). GET /verdict and GET /waste-report (Bearer) are reads. POST /receipt (Bearer) mints the signed abstention receipt at ABSTAIN; anyone can verify it at POST /receipt/verify. POST /subscribe (Bearer + X-PAYMENT $9 or $29) activates a tier. The same operations are MCP tools at POST /mcp.", "pay_to": "0x7a482F3B58780519880a6A13F983E958f2Ed6A61", "network": "base (eip155:8453)", "asset": "USDC", "signing_keys": "/.well-known/signing-keys"}