# Services from verity-suite.onrender.com on Zero > verity-suite.onrender.com serves 45 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero. Canonical page: https://www.zero.xyz/host/verity-suite.onrender.com Live health (JSON, refreshed every minute): https://www.zero.xyz/host/verity-suite.onrender.com/health.json ## Services - [Verity Suite Freshness Check](https://www.zero.xyz/c/verity-suite-freshness-check-171b33b9/llms.txt): $0.25/call via x402. Checks whether a given claim or fact is still current by evaluating it against provided evidence snippets, returning a calibrated staleness probability and a fail-closed verdict. - [Verity Suite Provenance Pro — AI vs Human Authorship Detector](https://www.zero.xyz/c/verity-suite-provenance-pro-ai-vs-human-authorship-detector-6a1c6268/llms.txt): $0.15/call via x402. Analyzes a passage of text and returns a calibrated probability and verdict indicating whether it was written by an AI or a human, with grounded textual signals and explicit limitations. - [Verity Suite Arbiter](https://www.zero.xyz/c/verity-suite-arbiter-45ebef7d/llms.txt): $0.25/call via x402. Adjudicates between two or more conflicting claims by evaluating provided evidence and returning a calibrated verdict with confidence score and supporting reasons. - [Verity Suite Compass — AI Decision Arbiter](https://www.zero.xyz/c/verity-suite-compass-ai-decision-arbiter-8afb2764/llms.txt): $0.06/call via x402. Evaluates a set of candidate options against stated constraints and evidence to produce a calibrated, structured verdict recommending the best choice or explaining why no pick is possible. - [Verity Suite — PII & Secret Redaction](https://www.zero.xyz/c/verity-suite-pii-secret-redaction-74f6f59f/llms.txt): $0.06/call via x402. Scans a text payload for PII, secrets, and credentials, returns a verdict, severity score, findings list, and a redacted version of the payload calibrated to the destination context - [Verity Suite Citation & Fact-Check Endpoint](https://www.zero.xyz/c/verity-suite-citation-fact-check-endpoint-fbd83c7d/llms.txt): $0.25/call via x402. Searches for and returns calibrated citations that support or contradict a factual claim, returning a verdict, support score, and source list - [Verity Suite Distill](https://www.zero.xyz/c/verity-suite-distill-bba5caa6/llms.txt): $0.06/call via x402. Extracts structured, verbatim-grounded facts from a source text with calibrated fidelity scores and fail-closed status reporting - [Verity Suite Faithful Pro — Faithfulness Checker](https://www.zero.xyz/c/verity-suite-faithful-pro-faithfulness-checker-2fe29027/llms.txt): $0.15/call via x402. Checks whether a summary or translation faithfully preserves the source text, returning a calibrated faithfulness probability, verdict, hallucinations, and omissions. - [Verity Suite Faithful — Faithfulness Checker](https://www.zero.xyz/c/verity-suite-faithful-faithfulness-checker-1ae4f402/llms.txt): $0.06/call via x402. Checks whether a candidate summary or translation faithfully preserves the meaning of a source text, returning a calibrated verdict and claim-level evidence. - [Verity Suite Compass Pro — AI Decision Advisor](https://www.zero.xyz/c/verity-suite-compass-pro-ai-decision-advisor-e778cb7d/llms.txt): $0.15/call via x402. Evaluates a set of candidate options against stated constraints and evidence, returning a calibrated verdict (recommend, tentative, gather_more_info, or no_viable_option) with confidence score and reasons. - [Verity Suite Arbiter Pro](https://www.zero.xyz/c/verity-suite-arbiter-pro-68af7592/llms.txt): $0.35/call via x402. Adjudicates between two or more conflicting claims by evaluating provided evidence and returning a calibrated, fail-closed verdict with confidence score. - [Verity Suite Freshness Pro](https://www.zero.xyz/c/verity-suite-freshness-pro-636f9de4/llms.txt): $0.35/call via x402. Checks whether a specific claim or fact is still current by evaluating it against provided evidence snippets, returning a calibrated staleness score and verdict. - [Verity Suite Quick Cite](https://www.zero.xyz/c/verity-suite-quick-cite-fa1f47c6/llms.txt): $0.03/call via x402. Finds and returns calibrated supporting citations for a factual statement, with a graded verdict on how strongly the retrieved sources establish the claim - [Verity Suite Sentinel Quick Scan](https://www.zero.xyz/c/verity-suite-sentinel-quick-scan-28a13d07/llms.txt): $0.02/call via x402. Scans untrusted text or tool output for prompt injection, jailbreak attempts, and manipulation techniques, returning a calibrated threat verdict and recommended action. - [Verity Suite Redact Pro](https://www.zero.xyz/c/verity-suite-redact-pro-05a8a5c8/llms.txt): $0.15/call via x402. Scans text payloads for PII, secrets, and credentials, returning a calibrated verdict, severity score, masked findings, and redacted payload — tuned to the destination context. - [Verity Suite Sentinel Pro](https://www.zero.xyz/c/verity-suite-sentinel-pro-2c92d18e/llms.txt): $0.15/call via x402. Scans untrusted text or tool output for prompt injection, jailbreak attempts, and manipulation techniques, returning a calibrated threat verdict and recommended action. - [Verity Suite Concord Pro — Policy Compliance Checker](https://www.zero.xyz/c/verity-suite-concord-pro-policy-compliance-checker-8d855feb/llms.txt): $0.15/call via x402. Checks whether a given text complies with a specified policy, contract, or spec, returning a calibrated verdict, compliance probability, and per-clause violation details. - [Verity Suite Sentinel](https://www.zero.xyz/c/verity-suite-sentinel-74514ec1/llms.txt): $0.06/call via x402. Scans untrusted text or tool output for prompt injection, jailbreak attempts, and manipulation, returning a calibrated threat verdict and recommended action. - [Verity Suite Arbiter Quick](https://www.zero.xyz/c/verity-suite-arbiter-quick-78d46c20/llms.txt): $0.03/call via x402. Adjudicates two or more conflicting claims against provided evidence, returning a calibrated verdict on which claim is better supported. - [Verity Suite Faithfulness Checker](https://www.zero.xyz/c/verity-suite-faithfulness-checker-bb23816e/llms.txt): $0.02/call via x402. Checks whether a summary or translation faithfully preserves the source text, returning a calibrated verdict and claim-level reasons. - [Verity Suite Quick Redact](https://www.zero.xyz/c/verity-suite-quick-redact-e50ec5e0/llms.txt): $0.02/call via x402. Scans a text payload for PII, secrets, and credentials, returning a verdict, severity score, masked findings, and a redacted version calibrated to the destination context. - [Verity Suite Sieve Quick — Content Moderation & Policy Screening](https://www.zero.xyz/c/verity-suite-sieve-quick-content-moderation-policy-screening-03c4ec44/llms.txt): $0.02/call via x402. Screens a piece of content against a moderation policy and returns a publish/review/block decision with calibrated violation risk score and reasons - [Verity Suite Sieve Pro — Content Moderation Screener](https://www.zero.xyz/c/verity-suite-sieve-pro-content-moderation-screener-1e620343/llms.txt): $0.15/call via x402. Screens text content against a configurable policy and returns a calibrated publish/review/block decision with violation risk score and concrete reasons - [Verity Suite Tally Quick — Arithmetic & Financial Figure Sanity Check](https://www.zero.xyz/c/verity-suite-tally-quick-arithmetic-financial-figure-sanity-check-04f3ab22/llms.txt): $0.02/call via x402. Validates numerical figures, arithmetic, and financial calculations in text, returning a calibrated verdict on whether the numbers are consistent, have minor issues, contain errors, or are unverifiable. - [Verity Suite Compass Quick — AI Decision Recommender](https://www.zero.xyz/c/verity-suite-compass-quick-ai-decision-recommender-7a6a0a30/llms.txt): $0.02/call via x402. Evaluates a set of candidate options against stated constraints and evidence, returning a calibrated verdict (recommend/tentative/gather_more_info/no_viable_option) with confidence score and reasons - [Verity Suite Provenance — AI vs Human Authorship Detection](https://www.zero.xyz/c/verity-suite-provenance-ai-vs-human-authorship-detection-72300c0e/llms.txt): $0.06/call via x402. Analyzes a text passage and returns a calibrated probability and verdict on whether it was AI-generated or human-authored, with grounded signal explanations. - [Verity Suite Sieve — Content Moderation & Policy Screening](https://www.zero.xyz/c/verity-suite-sieve-content-moderation-policy-screening-f0d30670/llms.txt): $0.06/call via x402. Screens user-generated or agent-generated content against a configurable policy and returns a publish/review/block decision with calibrated violation risk score and reasons - [Verity Suite Freshness Quick Check](https://www.zero.xyz/c/verity-suite-freshness-quick-check-8f026cd0/llms.txt): $0.03/call via x402. Checks whether a specific factual claim is still current by evaluating it against provided evidence snippets, returning a calibrated staleness probability and verdict. - [Verity Suite Tally — Arithmetic & Financial Figures Sanity Checker](https://www.zero.xyz/c/verity-suite-tally-arithmetic-financial-figures-sanity-checker-7efc9b1d/llms.txt): $0.06/call via x402. Validates numbers, math, and financial figures in text for arithmetic correctness, internal consistency, and plausibility, returning a calibrated verdict with per-issue findings. - [Verity Suite Provenance Quick Check](https://www.zero.xyz/c/verity-suite-provenance-quick-check-1fd3db3d/llms.txt): $0.02/call via x402. Analyzes a passage of text to determine whether it was likely written by a human or generated by AI, returning a calibrated probability and grounded signal explanations. - [Verity Suite Concord — Policy Compliance Checker](https://www.zero.xyz/c/verity-suite-concord-policy-compliance-checker-1fc5a184/llms.txt): $0.06/call via x402. Evaluates whether a given text complies with a specified policy, spec, or contract, returning a calibrated verdict and per-clause reasoning. - [Verity Suite Distill Quick](https://www.zero.xyz/c/verity-suite-distill-quick-b15a5956/llms.txt): $0.02/call via x402. Extracts structured, verbatim-grounded key-value facts from a text passage with calibrated fidelity scoring - [Verity Suite Distill Pro](https://www.zero.xyz/c/verity-suite-distill-pro-a7e99c14/llms.txt): $0.15/call via x402. Extracts calibrated, verbatim-grounded structured facts from source text, returning fidelity scores and status for each extraction - [Verity Suite Concord — Policy Compliance Checker](https://www.zero.xyz/c/verity-suite-concord-policy-compliance-checker-d5db2d93/llms.txt): $0.02/call via x402. Evaluates a text or AI-generated output against a provided policy, spec, or contract, returning a calibrated compliance verdict with per-clause reasoning and violation citations. - [Verity Suite Quick Guardrail Check](https://www.zero.xyz/c/verity-suite-quick-guardrail-check-73ad11e7/llms.txt): $0.02/call via x402. Evaluates an agent action against optional policy rules and context, returning a risk score and allow/review/block decision. - [Verity Suite Citation Pro](https://www.zero.xyz/c/verity-suite-citation-pro-9f7ee13f/llms.txt): $0.35/call via x402. Finds and returns calibrated supporting citations for a factual claim, returning a verdict, support score, and verified source list - [Verity Suite Tally Pro — Arithmetic & Financial Figure Verifier](https://www.zero.xyz/c/verity-suite-tally-pro-arithmetic-financial-figure-verifier-0030b754/llms.txt): $0.15/call via x402. Sanity-checks text containing numbers, math, or financial figures, returning a calibrated verdict on whether the figures are consistent, contain errors, or are unverifiable - [Verity Suite Ground Pro](https://www.zero.xyz/c/verity-suite-ground-pro-03af702c/llms.txt): $0.35/call via x402. Answers a question with a calibrated confidence score, caveats, and cited sources — returning an honest refusal if the answer cannot be determined - [Verity Suite Ground — Calibrated Question Answering](https://www.zero.xyz/c/verity-suite-ground-calibrated-question-answering-abb07dcd/llms.txt): $0.25/call via x402. Answers a question with a calibrated confidence score, caveats, and sources, designed for AI agents that need reliable, fail-closed factual grounding - [Verity Suite Pro Guardrail Check](https://www.zero.xyz/c/verity-suite-pro-guardrail-check-f019b626/llms.txt): $0.2/call via x402. Evaluates a proposed agent action against a policy and context, returning an allow/review/block decision with risk score and reasoning - [Verity Suite Source Quick Assessment](https://www.zero.xyz/c/verity-suite-source-quick-assessment-48e778eb/llms.txt): $0.02/call via x402. Assesses the trustworthiness and reliability of a URL, domain, outlet, organization, or author, returning a calibrated trust verdict and score. - [Verity Suite Guardrail Check](https://www.zero.xyz/c/verity-suite-guardrail-check-155f061c/llms.txt): $0.08/call via x402. Evaluates a proposed agent action against optional policy rules and context, returning a risk score and allow/review/block decision - [Verity Suite Ground Quick](https://www.zero.xyz/c/verity-suite-ground-quick-1dcfd1f2/llms.txt): $0.03/call via x402. Answers a question with a calibrated confidence score, caveats, and sources, returning an honest 'cannot determine' if uncertain - [Verity Suite Source Reliability Assessment](https://www.zero.xyz/c/verity-suite-source-reliability-assessment-85705256/llms.txt): $0.25/call via x402. Assesses the trustworthiness and reliability of a URL, domain, outlet, organization, or author for a given purpose, returning a scored trust verdict with reasons and red flags - [Verity Suite Source Reliability Assessment](https://www.zero.xyz/c/verity-suite-source-reliability-assessment-727788a9/llms.txt): $0.35/call via x402. Assesses the trustworthiness and reliability of a URL, domain, news outlet, organization, or author for a specified purpose, returning a calibrated trust verdict and score. Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. - [Zero catalog index](https://www.zero.xyz/llms.txt)