Hergert Synthora

Hergert Synthora Safety API

Pre-trade and pre-payment safety checks

Documentation GitHub OpenAPI

Operations 2

POST /service On-chain contract safety check (0.005 USDC) #

POST /preflight Verify-before-pay check on any x402 endpoint (0.010 USDC) #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: SYNTHORA Machine-Payable API Mesh (aggregate) Safety API
  version: 2026.09.03
  description: 'Aggregate OpenAPI for the SYNTHORA x402 mesh: 121 pay-per-call services, each on its own host under *.hergertsynthora.com, path /service, POST JSON. Per-service OpenAPI: https:///openapi.json. Payment: x402, USDC on Base, payTo 0xEf879BFD6C4AccB8F795136de90246e1EC245e06 (Safe 1.3.0). Full machine catalog: https://catalog.hergertsynthora.com/catalog.json'
  contact:
    email: info@hergertsynthora.com
  x-terms: https://hergertsynthora.com/terms
  x-sla: https://api.hergertsynthora.com/sla
servers:
- url: https://pay.hergertsynthora.com
  description: Flagship endpoints
security:
- x402Payment: []
tags:
- name: safety
  description: Pre-trade and pre-payment safety checks
paths:
  /service:
    post:
      operationId: contractGuard
      summary: On-chain contract safety check (0.005 USDC)
      description: 'Pre-trade safety for agents: honeypot, rug-pull, hidden-mint and owner-privilege detection on a Base contract. Returns an Ed25519-signed verdict.'
      tags:
      - safety
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.005000'
        protocols:
        - x402: {}
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ServiceRequest'
            example:
              input: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
      responses:
        '200':
          $ref: '#/components/responses/SignedResult'
        '402':
          $ref: '#/components/responses/PaymentRequired'
  /preflight:
    post:
      operationId: payToPreflight
      summary: Verify-before-pay check on any x402 endpoint (0.010 USDC)
      description: 'Synchronous check that a target x402 endpoint and its payTo are alive and unchanged immediately before you pay, so an agent never sends USDC to a dead, changed or hijacked payTo. Returns an Ed25519-signed verdict: safe | changed | down | unknown.'
      tags:
      - safety
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.010000'
        protocols:
        - x402: {}
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - input
              properties:
                input:
                  type: object
                  required:
                  - endpoint_url
                  - expected_payTo
                  properties:
                    endpoint_url:
                      type: string
                      format: uri
                    expected_payTo:
                      type: string
                      pattern: ^0x[a-fA-F0-9]{40}$
            example:
              input:
                endpoint_url: https://pay.hergertsynthora.com/service
                expected_payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
      responses:
        '200':
          $ref: '#/components/responses/SignedResult'
        '402':
          $ref: '#/components/responses/PaymentRequired'
components:
  schemas:
    SignedResult:
      type: object
      properties:
        ok:
          type: boolean
        niche:
          type: string
        result:
          type: object
        receipt:
          type: object
          description: Ed25519 signature over the result, plus payment reference.
    PaymentRequirements:
      type: object
      properties:
        scheme:
          type: string
          const: exact
        network:
          type: string
          const: eip155:8453
        asset:
          type: string
          const: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
          description: USDC on Base
        amount:
          type: string
          description: Price in USDC base units (6 decimals)
        maxAmountRequired:
          type: string
        payTo:
          type: string
        maxTimeoutSeconds:
          type: integer
    ServiceRequest:
      type: object
      required:
      - input
      properties:
        input:
          type: string
          description: Primary argument. For contract safety, a 0x contract address on Base.
  responses:
    PaymentRequired:
      description: Payment required. Read `accepts` for price and payTo, then retry with the X-PAYMENT header.
      content:
        application/json:
          schema:
            type: object
            properties:
              x402Version:
                type: integer
              error:
                type: string
              accepts:
                type: array
                items:
                  $ref: '#/components/schemas/PaymentRequirements'
    SignedResult:
      description: Paid result, Ed25519-signed.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/SignedResult'
  securitySchemes:
    x402Payment:
      type: apiKey
      in: header
      name: X-PAYMENT
      description: EIP-3009 transferWithAuthorization payload, USDC on Base. Obtained by first calling the endpoint and reading the 402 challenge.
externalDocs:
  description: Full x402 discovery manifest (222 live payable resources)
  url: https://pay.hergertsynthora.com/.well-known/x402.json
x-discovery:
  ownershipProofs:
  - '0xb107b1c73411f02586b715eba39066d97d331476af401c49a480795c4b53a39f4eb884d52fe8138f02c5d6581c19d6f5bb790e848dbe5bff42074eb44815ab661c'
x-synthora-products:
- host: agentcard.hergertsynthora.com
  url: https://agentcard.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill schemas, endpoint reachability, security schemes, provider transparency — and returns a compatibility_score, schema_errors and warnings. The trust layer for the a'
  openapi: https://agentcard.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: air-quality.hergertsynthora.com
  url: https://air-quality.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA air-quality: live air quality for any city or lat,lon — PM2.5/PM10/ozone/NO2, EU and US AQI, and a WHO-threshold operational verdict (good/moderate/harmful). Source: open-meteo Air Quality (CAMS/ESA Copernicus), free, no key. $0.005 USDC x402 Base.'
  openapi: https://air-quality.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: ais-sanctions-signal.hergertsynthora.com
  url: https://ais-sanctions-signal.hergertsynthora.com/service
  price_usdc: 2.0
  description: 'SYNTHORA AIS x sanctions LIVE SIGNAL: vessels heard by our own AIS listener crossed against sanctions lists and PSC detentions (deterministic, cron 2h). Real signal verified 2026-09-02: HELION (MMSI 538012094, ua_war_sanctions) in Gibraltar. Tier estandar: 2 USDC per call via x402 on Base.'
  openapi: https://ais-sanctions-signal.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: amlscreen.hergertsynthora.com
  url: https://amlscreen.hergertsynthora.com/service
  price_usdc: 0.1
  description: Screen a crypto wallet address against global sanctions and illicit-activity intelligence. Cross-checks the on-chain Chainalysis sanctions oracle, TRM screening, OFAC SDN and GoPlus address flags (mixer, phishing, laundering), returning a sanctioned yes/no, matched lists and an AML risk score. Use i
  openapi: https://amlscreen.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: asset-risk.hergertsynthora.com
  url: https://asset-risk.hergertsynthora.com/service
  price_usdc: 0.03
  description: 'SYNTHORA asset-risk: geoint risk verdict by zone (gibraltar, bab-el-mandeb, bosphorus, algeciras...) or lat/lon+bbox — confidence measured by AGREEMENT between independent sources, discrepancies declared (the moat). $0.03 USDC x402 Base.'
  openapi: https://asset-risk.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: bitcoin-fees.hergertsynthora.com
  url: https://bitcoin-fees.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless. Bitcoin only.'
  openapi: https://bitcoin-fees.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: bridgerisk.hergertsynthora.com
  url: https://bridgerisk.hergertsynthora.com/service
  price_usdc: 0.1
  description: Assess the security risk of a cross-chain bridge before routing funds through it. Combines live DefiLlama TVL and audit status with the full bridge-hack incident history and known-exploit analysis into a 0-100 risk score, a safe/caution/high_risk/critical signal and explicit risk factors. Use it for
  openapi: https://bridgerisk.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: businessrisk.hergertsynthora.com
  url: https://businessrisk.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, t'
  openapi: https://businessrisk.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: chokepoint-risk.hergertsynthora.com
  url: https://chokepoint-risk.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'SYNTHORA chokepoint-risk: SUPERCORRELATED risk verdict per maritime chokepoint (Hormuz, Suez, Panama, Bab el-Mandeb, Malacca, Gibraltar, Taiwan) — crosses REAL TRAFFIC (IMF PortWatch, canonical Polymarket resolution source) x NARRATIVE (GDELT global news spike+tone) x NAVIGABILITY (WaveWatch III sea'
  openapi: https://chokepoint-risk.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: chokepoint-transits.hergertsynthora.com
  url: https://chokepoint-transits.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA chokepoint-transits: daily vessel transits through the 28 global maritime chokepoints (Hormuz, Suez, Panama, Bab el-Mandeb, Malacca...). Latest settled day, 7d moving average, deviation vs 30d baseline, per-vessel-type breakdown (a tanker-only drop at Hormuz is the tradeable signal) and ano'
  openapi: https://chokepoint-transits.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: code-sandbox.hergertsynthora.com
  url: https://code-sandbox.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'Python code execution as a service for agents: send code, get stdout/stderr/exit code. Isolated, hard limits. $0.01 USDC x402 Base.'
  openapi: https://code-sandbox.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: codeaudit.hergertsynthora.com
  url: https://codeaudit.hergertsynthora.com/service
  price_usdc: 0.32
  description: 'Multi-LLM Smart Contract Audit: 3 independent LLM perspectives (security, logic, gas) + static pattern scan on Solidity/Vyper source. Severity: clean/low/medium/high/critical. Ed25519-signed, publishable on-chain. POST {"source":"pragma solidity...","language":"solidity"} or {"address":"0x..","chain'
  openapi: https://codeaudit.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: coingecko-crypto-price-history.hergertsynthora.com
  url: https://coingecko-crypto-price-history.hergertsynthora.com/service
  price_usdc: 0.05
  description: Historical daily price, market-cap and volume time-series for a coin in any fiat currency from CoinGecko's keyless market_chart endpoint (JSON). Serves autonomous crypto-vs-fiat trend agents, backtesting bots, and agent-to-agent analytics needing multi-day price series without a key. Pay-per-call vi
  openapi: https://coingecko-crypto-price-history.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: commodity-macro.hergertsynthora.com
  url: https://commodity-macro.hergertsynthora.com/service
  price_usdc: 0.05
  description: Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.
  openapi: https://commodity-macro.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: compliance-eu.hergertsynthora.com
  url: https://compliance-eu.hergertsynthora.com/service
  price_usdc: 0.1
  description: 'EU Compliance Triage: AI Act risk classification + MiCA category detection. Automated regulatory analysis for fintechs, exchanges, AI projects.'
  openapi: https://compliance-eu.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: consensus-fragility.hergertsynthora.com
  url: https://consensus-fragility.hergertsynthora.com/service
  price_usdc: 0.1
  description: 'Consensus Fragility Feed: divergence signals between independent sources. Detect when consensus is fragile before trading.'
  openapi: https://consensus-fragility.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: contract-guard.hergertsynthora.com
  url: https://contract-guard.hergertsynthora.com/service
  price_usdc: 0.32
  description: 'SYNTHORA contract_guard (endpoint canonico historico, alias de contractwatch): veredicto de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-pull, hidden mint. Correlacionado entre fue'
  openapi: https://contract-guard.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: contractwatch.hergertsynthora.com
  url: https://contractwatch.hergertsynthora.com/service
  price_usdc: 0.32
  description: 'SYNTHORA contractwatch: verdict de seguridad de contrato on-chain que SI lee el bytecode (eth_getCode) y slots de proxy (EIP-1967/zeppelinos/UUPS/beacon), owner() y privilegios ocultos: honeypot, rug-pull, hidden mint. Correlacionado entre fuentes independientes y firmado Ed25519. 0.32 USDC via x402'
  openapi: https://contractwatch.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: counterparty-attestation.hergertsynthora.com
  url: https://counterparty-attestation.hergertsynthora.com/service
  price_usdc: 0.5
  description: 'SYNTHORA counterparty-attestation: full signed due-diligence attestation on a counterparty, re-verifiable by third parties. Multi-list matching (OFAC/UN/EU/OpenSanctions) with fuzzy entity resolution, per-list evidence, consulted lists with dates, sha256 + SYNTHORA signature over the full ruling. 0.'
  openapi: https://counterparty-attestation.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: counterparty-clearance.hergertsynthora.com
  url: https://counterparty-clearance.hergertsynthora.com/service
  price_usdc: 0.1
  description: 'SYNTHORA counterparty-clearance (screen): due diligence of a counterparty before paying or contracting. Multi-list matching (OFAC SDN + aliases, UN, OpenSanctions, EU consolidated) + on-chain reputation, fused by the SYNTHORA engine into a signed CLEAR/FLAGGED/BLOCKED ruling with citations to the ex'
  openapi: https://counterparty-clearance.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: cryptonews.hergertsynthora.com
  url: https://cryptonews.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'SYNTHORA cryptonews: real-time crypto news headlines with sentiment, ranked by importance. Aggregates keyless RSS feeds (CryptoPanic, CoinDesk, CoinTelegraph, Decrypt, Bitcoin Magazine) into deduplicated, freshness-and-source-weighted top headlines, each scored with a lexical bull/bear sentiment (ve'
  openapi: https://cryptonews.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: daily-intel-brief.hergertsynthora.com
  url: https://daily-intel-brief.hergertsynthora.com/service
  price_usdc: 0.1
  description: 'SYNTHORA daily-intel-brief: the daily intelligence briefing in ONE call — funding spreads cross-venue, stablecoin depeg radar, US funding stress (SOFR-EFFR), chokepoint status (PortWatch), narrative tension (GDELT), plus executive alerts. Each block declares its verified sources. What a trading agen'
  openapi: https://daily-intel-brief.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: deep-audit.hergertsynthora.com
  url: https://deep-audit.hergertsynthora.com/service
  price_usdc: 0.5
  description: 'SYNTHORA deep-audit: deep OSINT audit of a person / company / domain / username using >=3 tools from SYNTHORA self-hosted OSINT mesh (username footprint, passive domain scan, sanctions/PEP matching, Tor crawler, phone scan, own metasearch) plus web search, synthesized by the SYNTHORA intelligence en'
  openapi: https://deep-audit.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: defi-llama-tvl-ranking.hergertsynthora.com
  url: https://defi-llama-tvl-ranking.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA defi-llama-tvl-ranking: Top DeFi protocols by TVL with rank, chain, category and 1d/7d change, capped list (default 50, max 200 via {"limit":N}). Source: api.llama.fi/protocols (DefiLlama), keyless, timestamped.'
  openapi: https://defi-llama-tvl-ranking.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: defi-yields.hergertsynthora.com
  url: https://defi-yields.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA defi-yields: stablecoin DeFi yields ranked with a risk outlier detector — APY vs class median (>=3x median = the excess yield IS the risk price). Only pools with TVL >= $10M. Source: DefiLlama, free, no key. $0.005 USDC x402 Base.'
  openapi: https://defi-yields.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: defidata.hergertsynthora.com
  url: https://defidata.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'SYNTHORA defidata: deFi market-data feed: perp open interest, funding rate, mark price and a directional signal across top assets (BTC/ETH/SOL/…), plus optional per-asset verdict. Deterministic, Ed25519-signed. SYNTHORA. First 3 calls FREE per wallet — send header ''X-WALLET: 0x<your Base address>'' ('
  openapi: https://defidata.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: deliver.hergertsynthora.com
  url: https://deliver.hergertsynthora.com/service
  price_usdc: 0.05
  description: Audit a domain's email deliverability and sender reputation. Checks SPF, DKIM selectors, DMARC policy strength (reject/quarantine/none), BIMI, MX and PTR records, returning a spam score and prioritized fixes. Use it to assess inbox placement, email authentication and domain reputation before sending
  openapi: https://deliver.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: demand-radar.hergertsynthora.com
  url: https://demand-radar.hergertsynthora.com/service
  price_usdc: 0.25
  description: 'SYNTHORA demand-radar: live demand analytics measured on the mesh itself (Caddy access logs, weekly aggregate): most-probed x402 endpoints, 402 unpaid interest, 200 conversions, unique IPs, published prices. POST {"vista":"sin_pagar|compradas|nadie_toca|mirados","limit":<=25}.'
  openapi: https://demand-radar.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: derivbundle.hergertsynthora.com
  url: https://derivbundle.hergertsynthora.com/service
  price_usdc: 1.6
  description: 002 call (cheaper + fewer round-trips than buying each separately) 5 live datasets, partial degradation (never fails whole), Ed25519-signed First 3 calls FREE per wallet via X-WALLET header SYNTHORA.
  openapi: https://derivbundle.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: dex-pair-price.hergertsynthora.com
  url: https://dex-pair-price.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'Real-time on-chain DEX price, liquidity and 24h volume for any pool/token on any chain via GeckoTerminal. For DeFi routing agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.'
  openapi: https://dex-pair-price.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: dispute-risk.hergertsynthora.com
  url: https://dispute-risk.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'Resolution/dispute risk score (0-100) for Polymarket markets: UMA status (proposed/disputed), UMA bond and reward, rules-text ambiguity (length, deadline date, declared resolution source), top-3 holder concentration as a vote-manipulation proxy, and days to resolution. Pass a market_slug or conditio'
  openapi: https://dispute-risk.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: domain-risk.hergertsynthora.com
  url: https://domain-risk.hergertsynthora.com/service
  price_usdc: 0.03
  description: 'SYNTHORA domain-risk: domain risk verdict (LIMPIO/SOSPECHOSO/PELIGROSO) with score, confidence and evidence signals — age, infra, reputation crosses. Pre-interaction safety for agents. $0.03 USDC x402 Base.'
  openapi: https://domain-risk.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: ecb-forex-fixing-vs-market.hergertsynthora.com
  url: https://ecb-forex-fixing-vs-market.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA ecb-forex-fixing-vs-market: ECB daily EUR/USD fixing vs live market rate: deviation in basis points, direction and >25bps alert. Sources: official ECB eurofxref-daily.xml + open.er-api.com, both keyless.'
  openapi: https://ecb-forex-fixing-vs-market.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: ecb-macro.hergertsynthora.com
  url: https://ecb-macro.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA ecb-macro: official eurozone macro from the ECB data warehouse — HICP inflation, MRR policy rate, 10Y govt yield, each with previous value, change and direction. For macro/rates agents and prediction markets. Official free source, no key. $0.005 USDC x402 Base.'
  openapi: https://ecb-macro.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: emerging-protocols.hergertsynthora.com
  url: https://emerging-protocols.hergertsynthora.com/service
  price_usdc: 0.03
  description: 'SYNTHORA emerging-protocols: early detection of young DeFi protocols with accelerating TVL (on-chain momentum) before they get big — for MEV searchers and alpha bots. Ranked by momentum+acceleration+youth, mega-protocol noise filtered. Source: DeFiLlama. $0.03 USDC x402 Base.'
  openapi: https://emerging-protocols.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: endpoint-trust.hergertsynthora.com
  url: https://endpoint-trust.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA endpoint-trust: trust verdict for any x402 endpoint before paying it — 402 correctness, valid accepts/payTo, bazaar extensions, agent-card published, latency. Observed behavior, not declarations. The pre-payment check for buying agents. $0.005 USDC x402 Base.'
  openapi: https://endpoint-trust.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: exchange-rates-verified.hergertsynthora.com
  url: https://exchange-rates-verified.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA exchange-rates-verified: FX rates for 160+ currencies CROSS-VERIFIED between two independent sources (ECB official fixing via frankfurter.app vs market aggregate open.er-api.com) with per-currency deviation in bps and divergence alert >50 bps. The product is the discrepancy: a bad rate brea'
  openapi: https://exchange-rates-verified.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: fear-greed.hergertsynthora.com
  url: https://fear-greed.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'SYNTHORA fear-greed: indice de miedo/codicia con la VARIACION frente a ayer y el cruce de banda, no solo el valor. Fuente: alternative.me, fechada y con hash.'
  openapi: https://fear-greed.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: fed-watch.hergertsynthora.com
  url: https://fed-watch.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA fed-watch: US reference-rate funding pulse — SOFR/EFFR/TGCR/BGCR/OBFR with volumes, percentile dispersion and the SOFR-EFFR spread (the funding-stress signal before it hits the news). Cross-check of 5 independent official NY Fed series. The input for Fed/CPI prediction markets. Free officia'
  openapi: https://fed-watch.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: funding-rates.hergertsynthora.com
  url: https://funding-rates.hergertsynthora.com/service
  price_usdc: 0.05
  description: 'Real-time perpetual funding rates + mark price for any Binance futures symbol. Essential for delta-neutral and basis-trading agents. Free source, deterministic, instant JSON. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream '
  openapi: https://funding-rates.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: funding-spread.hergertsynthora.com
  url: https://funding-spread.hergertsynthora.com/service
  price_usdc: 0.03
  description: 'SYNTHORA funding-spread: perp funding rates CROSSED across Binance, Bybit and OKX for top pairs — the max spread between venues and the theoretical carry direction (long where you receive, short where you pay). Funding arb signal, not a wrapper. 3 free public sources crossed. $0.03 USDC x402 Base.'
  openapi: https://funding-spread.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: gas-oracle-multi.hergertsynthora.com
  url: https://gas-oracle-multi.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA gas-oracle-multi: gas price across 5 chains (ethereum, base, arbitrum, optimism, polygon), each VERIFIED by two independent public RPCs with divergence report — a single RPC can lie or lag; dual-verified is what you time transactions with. Free public RPCs, no key. $0.005 USDC x402 Base.'
  openapi: https://gas-oracle-multi.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: gdelt-tension.hergertsynthora.com
  url: https://gdelt-tension.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA gdelt-tension: geopolitical tension index for any topic/country — news-mention spike vs 7d baseline, average tone shift, escalation flag and the headlines causing it. The early signal for Polymarket geopolitical markets (high variance, high spread). Source: GDELT DOC 2.0 (100+ languages, fr'
  openapi: https://gdelt-tension.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: github-repo-activity.hergertsynthora.com
  url: https://github-repo-activity.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA github-repo-activity: Activity metrics for any public GitHub repo (input owner/repo): stars, forks, open issues, last push, language, archived flag. 10-min in-process cache, stale-on-rate-limit or ok:false. Source: api.github.com, keyless.'
  openapi: https://github-repo-activity.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'
- host: headers-audit.hergertsynthora.com
  url: https://headers-audit.hergertsynthora.com/service
  price_usdc: 0.01
  description: 'SYNTHORA headers-audit: HTTP security headers + TLS audit for any URL — missing headers, score 0-100, cookie flags. $0.005 USDC x402 Base.'
  openapi: https://headers-audit.hergertsynthora.com/openapi.json
  payment:
    protocol: x402
    network: eip155:8453
    asset: USDC
    payTo: '0xEf879BFD6C4AccB8F795136de90246e1EC245e06'


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# Full source: https://raw.githubusercontent.com/api-evangelist/hergertsynthora-com/refs/heads/main/openapi/hergertsynthora-com-safety-api-openapi.yml