Is there a free tier and how do I start?
Yes, the first 1,000 settlements are free with no credit card or API key required. Use the `/v2/hello-world` endpoint to test.
B
Blindoracle MCP Server
@craigmbrown
基本情報
Blindoracle MCP Server について
Privacy-preserving agent settlement for prediction markets via blind signatures. 7 MCP tools: create_forecast, submit_position, resolve_market, verify_identity, check_balance, mint_badge, health_check.
Blindoracle MCP Server の設定
以下の設定を使って、このサーバーを MCP 対応クライアントに追加してください。
{
"mcpServers": {
"blindoracle": {
"type": "http",
"url": "https://craigmbrown.com/api/mcp"
}
}
}Blindoracle MCP Server のツール
39FREE, no arguments, no wallet, no API key: every BlindOracle service with its price, which tools have free calls today, and how to pay (x402 USDC on Base, or a free starter-credit note). Call this first to see what is available.
Poll the result of a previously purchased background job by job_id. Free — no payment required.
FREE over MCP: 5 calls per day, no wallet, no API key. Free only when the call carries NO payment: a call that sends a payment or starter-credit note is charged. queryable trust badge summarizing an agent's verified settlement history — the minimum-viable signal to check before a first transaction. An agent with no history returns an honest zero and badge `none`, never a synthetic score. After the free calls: $0.01 USDC via x402 (network eip155:8453).
FREE over MCP: 5 calls per day, no wallet, no API key. Free only when the call carries NO payment: a call that sends a payment or starter-credit note is charged. Look up an agent's settlement track record before you transact with it: completed vs. failed jobs, dispute history, and trust-score trend, sourced from signed on-chain settlement proofs rather than self-reported claims. After the free calls: $0.01 USDC via x402 (network eip155:8453).
Pre-hire due-diligence check on an agent before you delegate it real spend authority: settlement history, dispute rate, and any flagged incidents, in one signed report. Requires payment of $0.25 USDC via x402 (network eip155:8453).
Adjudication of a contested deliverable: both sides submit evidence and a signed verdict (upheld / overturned / withdrawn; ProofOfAdjudicatedOutcome 30129) is written to the settlement ledger. Disclosure: today the adjudicator is the BlindOracle operator panel — the verdict is unilateral and there is no buyer contest channel yet. It is a documented, evidence-retained decision, not a disinterested third-party referee; the live /v1/services `dispute_disclosure` block is authoritative. No charge if the required source cannot be fetched. Requires payment of $5.0 USDC via x402 (network eip155:8453).
A single-use cryptographic seal proving a specific deliverable was produced by a specific agent at a specific time and has not been altered since — the receipt a counterparty can independently check. Requires payment of $0.05 USDC via x402 (network eip155:8453).
Researches YouTube videos from their real transcripts: pass video URLs in the task or in `urls`, or describe a topic and it finds relevant videos. Returns what you asked for, then per-video thesis, key claims and quotes, each cited to a transcript timestamp [n @ mm:ss]. If no transcript can be fetched, the job is refused and you are not charged. Refuses, with no charge, when fetched transcript cannot be fetched. Requires payment of $0.03 USDC via x402 (network eip155:8453).
Real-time market data, technical indicators, and sentiment for any ticker, run by crypto-market-agent-sonnet against live exchange data rather than cached snapshots. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Broader single-ticker view than any one oracle.* SKU; feeds crypto.investment-plays' risk scoring. May deliver with a first-line DEGRADED notice when live data is unavailable. Requires payment of $0.02 USDC via x402 (network eip155:8453).
Public business-registry record extraction (SEC / state Secretary-of-State / UK Companies House) over a buyer-supplied public records URL, wrapped in the BlindOracle trust envelope. Public records only. Requires payment of $0.1 USDC via x402 (network eip155:8453).
Per-call retrieval of recent SEC EDGAR filings (10-K/10-Q/8-K) for a ticker or CIK, with a tamper-evident BlindOracle trust envelope (content hash + content-trap scan + provenance). Public-domain source. Requires payment of $0.05 USDC via x402 (network eip155:8453).
Clean main-content extraction of a single buyer-supplied URL via Firecrawl, wrapped in the BlindOracle trust envelope. Thin extraction tool; no data inventory held. Requires payment of $0.05 USDC via x402 (network eip155:8453).
5-11 agent panel debate with 11 LLM models, structured voting, forced decision-making May deliver with a first-line DEGRADED notice when buyer question is unavailable. Requires payment of $2.0 USDC via x402 (network eip155:8453).
Independent audit of an agent's actual token spend against its budget and declared task scope — surfaces cost overruns or scope creep a counterparty wouldn't otherwise see. Requires payment of $0.05 USDC via x402 (network eip155:8453).
Automated DD scan: financials, litigation, key personnel, IP, media sentiment, red flags Refuses, with no charge, when ≥5 web sources + registry/EDGAR lookups cannot be fetched. Refuses, with no charge, when the required source (≥5 web sources + registry/EDGAR lookups) cannot be fetched. Requires payment of $1.0 USDC via x402 (network eip155:8453).
Deterministic HEAD/GET check of every URL in the task; PASS/FAIL verdict with per-URL status codes. Post-deploy verification SKU (RQ-BO-DELEGATE-02). Requires payment of $0.01 USDC via x402 (network eip155:8453).
Defines a custom price/event alert and returns its current trigger state — armed, fired, or stale — not just the spec. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Reads off oracle.volatility-monitor and oracle.price-feed; this SKU is the trigger layer, not the data layer. Refuses, with no charge, when live price + buyer threshold fields cannot be fetched. Requires payment of $0.02 USDC via x402 (network eip155:8453).
Consolidated market/asset report combining price, volatility, sentiment, and arbitrage reads for one ticker across venues, run by crypto-market-agent-sonnet. Every delivery settles with ProofOfSettledOutcome (kind 30120, HMAC-signed, data/proof_settled_outcomes.jsonl) — verifiable proof the report was paid for and delivered, not just claimed. Broader scope than any single oracle.* SKU below; narrower and cheaper than security.massat-audit's compliance-grade evidence. May deliver with a first-line DEGRADED notice when live data is unavailable. Requires payment of $0.2 USDC via x402 (network eip155:8453).
Aggregates a token's price across multiple chains and venues (DEX + CEX) into one comparable read, flagging the highest-deviation pair. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Narrower than oracle.comprehensive-report (single metric, not a full report); feeds oracle.market-arbitrage's spread detection. Refuses, with no charge, when live price feed, ≥2 chains cannot be fetched. Requires payment of $0.03 USDC via x402 (network eip155:8453).
Historical trend and pattern analysis for an asset or time series, identifying the specific pattern rather than a generic 'trending up/down' label. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Feeds crypto.investment-plays' entry/exit logic; distinct from oracle.volatility-monitor's real-time (not historical) read. Refuses, with no charge, when price history ≥30d cannot be fetched. Requires payment of $0.08 USDC via x402 (network eip155:8453).
Detects live cross-venue arbitrage spreads for a given asset and returns an actionable entry/exit spread, not just a price delta. Built on oracle.cross-chain-prices' price aggregation. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Pairs with crypto.investment-plays for a full execution plan. Refuses, with no charge, when live prices from ≥2 venues cannot be fetched. Requires payment of $0.1 USDC via x402 (network eip155:8453).
Real-time price feed for a named pair and venue, with the source cited per read instead of a black-box number. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). The base data layer the other oracle.* SKUs (arbitrage, volatility, alerts) are built on. Refuses, with no charge, when live price feed cannot be fetched. Refuses, with no charge, when the required source (live price feed) cannot be fetched. Requires payment of $0.02 USDC via x402 (network eip155:8453).
Social + news sentiment read for a named crypto asset or topic, scored and sourced (not a raw keyword count). Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Same sentiment methodology as research.topic-sentiment-analyzer, scoped to crypto assets instead of general topics. May deliver with a first-line DEGRADED notice when live data is unavailable. Requires payment of $0.06 USDC via x402 (network eip155:8453).
Real-time volatility read for a trading pair with configurable alert thresholds you can act on. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Complements oracle.alert-generator (fires the alert) and oracle.historical-analysis (explains the trend behind the number). Refuses, with no charge, when live price history cannot be fetched. Refuses, with no charge, when the required source (live price history) cannot be fetched. Requires payment of $0.04 USDC via x402 (network eip155:8453).
5-11 agent panel debate playing CFO + CIO + CISO + Procurement Lead. Forced vote on any vendor decision. Output includes verdict, vote breakdown, and ERC-8004 proof of deliberation. Refuses, with no charge, when ≥3 web sources about the subject cannot be fetched. Refuses, with no charge, when the required source (≥3 web sources about the subject) cannot be fetched. Requires payment of $2.0 USDC via x402 (network eip155:8453).
Signed, ledger-derived trust evidence about a NAMED BlindOracle agent (pass the agent name or erc8004 id as `subject`): passport status, audit-report count (ProofOfAuditReport 30105), dispute record, settlement-proof attestations, and revocation flags — each field read from the live ledgers, never fabricated. A subject that resolves to no registered passport returns `insufficient_subject` at no charge. It does NOT research external companies; use procurement.vendor-vetting or ops.due-diligence-scan for that. Requires payment of $0.01 USDC via x402 (network eip155:8453).
Structured vendor risk assessment across four lenses: financial health, security posture (OWASP ASI01-10), adverse media and litigation, and supplier reputation. Returns a 0-10 risk score, per-category findings, and red flags. Analyst reasoning over the vendor details you supply: it does not retrieve filings, news, or breach databases, and every report carries an AI-generation disclosure and a verifiable content hash. For an automated audit of a live agent system, see security.massat-audit. Refuses, with no charge, when ≥5 web sources incl. vendor's published terms cannot be fetched. Requires payment of $99.0 USDC via x402 (network eip155:8453).
Structured research brief (exec summary, mechanisms, alternatives, risks, [n] citations) synthesized over live web search results plus any `urls` you supply — each supplied URL is fetched, content-scanned and cited as a numbered source. It is a $0.05 search-and-synthesize pass, not a crawler: URLs not passed in `urls` are not opened, and claims the sources do not cover are marked '(unverified — no source)'. Settlement proof: ProofOfSettledOutcome (kind 30120). Deeper than research.topic-news-scanner; web + supplied documents vs content.youtube-research's video-only pool. Refuses, with no charge, when ≥5 fetched web sources cannot be fetched. Requires payment of $0.05 USDC via x402 (network eip155:8453).
Fast real-time news scan across 44+ curated domains (configs/search_domain_profiles.json), every item source-attributed. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). The quick-scan tier below research.topic-deep-researcher's slower, citation-grade report. Refuses, with no charge, when ≥3 fetched web sources cannot be fetched. Refuses, with no charge, when the required source (≥3 fetched web sources) cannot be fetched. Requires payment of $0.02 USDC via x402 (network eip155:8453).
Opinion and sentiment mapping across social, expert, and community channels for a named topic, scored per-channel rather than one blended number. Settlement proof: ProofOfSettledOutcome (kind 30120, data/proof_settled_outcomes.jsonl). Same methodology as oracle.sentiment-analysis, scoped to general topics rather than crypto assets. Refuses, with no charge, when ≥3 fetched web sources cannot be fetched. Refuses, with no charge, when the required source (≥3 fetched web sources) cannot be fetched. Requires payment of $0.03 USDC via x402 (network eip155:8453).
Neutral third-party notarization of an AI audit result: we did not run the audit, we attest that a specified audit was performed and its findings match what's claimed — the credential a checkpoint can trust without re-running the audit itself. Requires payment of $0.5 USDC via x402 (network eip155:8453).
Verifies an agent's Concordium identity card integrity and badge status against the issuing registry — confirms the credential wasn't forged or revoked before you rely on it. Requires payment of $0.02 USDC via x402 (network eip155:8453).
13-agent coordinated security audit producing a signed ProofOfAuditReport, Merkle-anchored to Base, for enterprises that need documented evidence an agent fleet was assessed before deployment — not a self-attestation. Refuses, with no charge, when the required source (buyer target) cannot be fetched. Requires payment of $25.0 USDC via x402 (network eip155:8453).
Tests whether a counterparty agent's input handling resists prompt-injection and content-trap patterns — a concrete resilience check, not a compliance checkbox. Requires payment of $0.5 USDC via x402 (network eip155:8453).
Independent multi-agent security audit (OWASP ASI01-ASI10 coverage) of a counterparty agent or MCP server before you grant it tool access or spend authority. Findings are Merkle-committed and the audit report is signed. Requires payment of $5.0 USDC via x402 (network eip155:8453).
Checks a counterparty agent's stated security posture against the MASSAT governance framework's actual requirements — flags claims that don't hold up. Requires payment of $0.25 USDC via x402 (network eip155:8453).
Signed attestation that a specific process was followed (not just that an outcome occurred) — useful when a counterparty needs evidence of *how* something was done, not only *that* it was done. Requires payment of $0.25 USDC via x402 (network eip155:8453).
Professional Simplified-Chinese<->English translation of documents and text. Auto-detects direction, preserves formatting, names, and numbers. Offshore/PIPL-guarded (refuses mainland-CN data subjects). BO trust envelope (content hash + scan + provenance) on every deliverable. Requires payment of $0.05 USDC via x402 (network eip155:8453).
Verify a BlindOracle receipt against the parts a buyer cannot check alone: is the proof_id really in BlindOracle's append-only proof rail, does its payload still hash to the stored row, and does the row's HMAC-SHA256 verify against the signing key. Also recomputes content_sha256 and confirms the Base payment, so one call is a complete answer. Deterministic, no LLM. The self-checkable half is free forever in the published verify-blindoracle-receipt skill (RQ-BO-RECEIPT-VERIFY-01). Requires payment of $0.01 USDC via x402 (network eip155:8453).
概要
What is BlindOracle?
BlindOracle is a private settlement layer for autonomous AI agents, providing SHA256 commitment-based privacy, agent identity via NIP-58 badges, forecast markets with guardian-network consensus, and multi-rail payments (instant, on-chain stablecoin, private token) through a single API.
How to use BlindOracle?
Add BlindOracle as a hosted MCP server by including its URL https://craigmbrown.com/api/mcp in your agent’s MCP configuration. Use HTTP headers (X-Agent-Id, X-402-Payment, X-Payment-Rail) and POST endpoints like /v2/hello-world for a free trial. No API key is needed for the first 1,000 settlements.
Key features of BlindOracle
- Private settlement via SHA256 commitment schemes with blind-signed tokens
- Agent identity with NIP-58 badges and anti-synthetic validation
- Forecast markets with privacy-preserving position commitment
- Multi-rail payments via a single API (instant/onchain/private)
- CaMel 4-Layer security: rate limiting, Byzantine consensus, anti-persuasion, audit trails
- ACE-compliant RWA prediction markets on Robinhood Chain with Chainlink Data Streams
Use cases of BlindOracle
- Deploy privacy-preserving prediction markets for cryptocurrency or stock price outcomes
- Verify and score agent identities for trust in multi-agent systems
- Execute private, unlinkable settlements between AI agents
- Integrate instant cross-rail payments (USDC on Base) into agent workflows
よくある質問
What payment methods does BlindOracle support?
All paid endpoints use x402 micropayments in USDC on Base. Settlement rails include instant (private) and on-chain options, selected via the `X-Payment-Rail` header.
Where does my data and identity live?
Agent identity is managed via NIP-58 badge credentials stored on Nostr (relay.damus.io). Position commitments use SHA256(secret||position||amount) and are never linked to agent identities. Full audit trails are maintained for security.
Do I need to install anything to use the MCP server?
No installation required. Add the hosted MCP server URL `https://craigmbrown.com/api/mcp` to your MCP client configuration. No local software or blockchain node is needed.
What are the rate limits or transportation requirements?
BlindOracle uses HTTP with x402 payment headers. The CaMel security gateway enforces rate limiting, Byzantine consensus (67% threshold), and anti-persuasion deviation detection. There is no separate authentication token for the free trial tier.
「その他」の他のコンテンツ
Blender
ahujasidOpen-source MCP to use Blender with any LLM
23.6K
DeepMark
DeepMark helps teachers deliver rapid, consistent marking with meaningful feedback for every student — in a fraction of the time. What once took a week, now takes one free period.
🚀 Model Context Protocol (MCP) Curriculum for Beginners
microsoftThis open-source curriculum introduces the fundamentals of Model Context Protocol (MCP) through real-world, cross-language examples in .NET, Java, TypeScript, JavaScript, Rust and Python. Designed for developers, it focuses on practical techniques for building modular, scalable,
16.7K
FastMCP v2 🚀
jlowin🚀 The fast, Pythonic way to build MCP servers and clients.
26.0K
EverArt
modelcontextprotocolModel Context Protocol Servers
88.1K
コメント