Services
The x402 service directory — but enriched with what a catalog can't show: verified on-chain payment volume, the provider's ERC-8004 identity and trust score, and live status. Ranked by real economic activity, not just listings.
| Service | Provider | Price | Verified vol | 30d calls | Live |
|---|---|---|---|---|---|
blockrun.ai Project mindshare time series. | unverified | $0.0075 | — | 954 | |
www.surplusintelligence.aiInference www.surplusintelligence.ai Get OpenAI-compatible inference from many models at market prices via Surplus Intelligence. | unverified | $0.003302 | — | 899 | |
x402-api.aubr.aiInference x402-api.aubr.ai Send a question about longevity, aging, or lifespan science. Returns a request ID to poll for the AI-generated answer from Aubrai, VitaDAO's decentralized co-scientist. | unverified | $0.02 | — | 783 | |
d2ngmd5yvdfkqu.cloudfront.netInference d2ngmd5yvdfkqu.cloudfront.net LLM-generated narrative recap of recent prediction-market activity. | unverified | $0.001 | — | 625 | |
blockrun.ai Filter wallets by market trades with AND/OR logic | unverified | $0.005 | — | 500 | |
blockrun.ai List Polymarket events with filtering and sorting | unverified | $0.001 | — | 461 | |
blockrun.ai Get the global leaderboard of smart wallets | unverified | $0.001 | — | 332 | |
ot-intel-api.onrender.comInference ot-intel-api.onrender.com OT-contextualised CVE triage for ICS/SCADA environments. Pass ?id=CVE-XXXX-XXXX. Returns OT-adjusted severity (recalculated from NVD CVSS for the affected ICS layer), cyber-physical impact category, patch feasibility without downtime, CISA KEV status, and a prioritised recommended action. Enriched by DeepSeek LLM for ICS-specific context. Every call returns fresh data from NVD, CISA-KEV, and DeepSeek. | unverified | $0.02 | — | 301 | |
ot-intel-api.onrender.comInference ot-intel-api.onrender.com SCADA/ICS internet-exposed device lookup for industrial control systems. Pass ?vendor=siemens&model=s7-1200. Returns default credential risk, at-risk OT protocols (Modbus/502, DNP3/20000, S7comm/102), exploitation notes, and hardening action. Covers Siemens, Schneider, Rockwell, Honeywell, GE, Unitronics, Beckhoff. | unverified | $0.05 | — | 271 | |
ot-intel-api.onrender.comInference ot-intel-api.onrender.com IOC enrichment with ICS/OT campaign context. Pass ?value=1.2.3.4&type=ip (or type=domain). Queries AlienVault OTX (reputation, pulse count, OT-tagged feeds) + AbuseIPDB (abuse confidence score, ISP, Tor node detection) + DeepSeek CTI analysis for known ICS threat actor association and campaign context. Returns structured verdict on whether the IOC is linked to OT-targeting campaigns. Cheapest endpoint at $0.01. | unverified | $0.01 | — | 203 | |
ot-intel-api.onrender.comInference ot-intel-api.onrender.com OT/ICS patch feasibility assessment for a CVE ID. Pass ?id=CVE-XXXX-XXXX. Returns patch availability (from NVD references), vendor advisory URLs, OT-safe workarounds, patch complexity for the affected ICS layer, estimated downtime in minutes, whether safe to patch live, recommended maintenance window, deployment strategy, CISA KEV status, and a risk-vs-disruption score (1–10 with rationale). DeepSeek-enriched. | unverified | $0.05 | — | 197 | |
ot-intel-api.onrender.comInference ot-intel-api.onrender.com ICS threat actor profile lookup. Pass ?name=SANDWORM. Fetches live data from MITRE ATT&CK for ICS (STIX bundle) + CISA ICS advisories, enriched by DeepSeek. Returns: MITRE technique mappings (ICS-specific T-codes), known malware/tools, related groups, recommended OT detections, attribution, physical impact assessment, and last known activity. Works for any known ICS threat actor — not limited to a fixed list. Alias lookup supported (e.g. Volt Typhoon → VOLTZITE, APT44 → SANDWORM). | unverified | $0.03 | — | 193 | |
blockrun.ai Query Polymarket markets with filtering, sorting, and pagination | unverified | $0.001 | — | 182 | |
orbisapi.com Classify BIM model level of detail against LOD standards | unverified | $0.005 | — | 136 | |
blockrun.ai Fetch trading activity (merges, splits, redeems) for a user | unverified | $0.001 | — | 132 | |
orbisapi.com Calculate compliance training completion rates by role | unverified | $0.005 | — | 131 | |
orbisapi.com Calculate optimal model retraining trigger thresholds | unverified | $0.005 | — | 130 | |
orbisapi.com Detect jailbreak and prompt injection attempt patterns | unverified | $0.005 | — | 130 | |
orbisapi.com Reference for LLM benchmarks: MMLU, HumanEval, GSM8K, and LMSYS Arena. | unverified | $0.005 | — | 126 | |
orbisapi.com Calculate maximum sustainable yield from population model data | unverified | $0.005 | — | 121 | |
blockrun.ai Raw SQL query against 80+ ClickHouse tables (sub-second). | unverified | $0.02 | — | 100 | |
api.stocktrends.com Latest Stock Trends Inference Model (ST-IM) outputs for a symbol: forward return expectations and statistical distributions across 4-week, 13-week, and 40-week horizons. Use /v1/meta/stim for ST-IM provenance, base-period context, and interpretation limits. | unverified | $0.0025 | — | 86 | |
blockrun.ai Token price history. | unverified | $0.0075 | — | 69 | |
blockrun.ai List sports markets grouped by game | unverified | $0.001 | — | 65 | |
x402-api.aubr.aiInference x402-api.aubr.ai Send an HPKE-encrypted prompt to the Aubrai chat agent running inside a Tinfoil TEE. Only the enclave can decrypt your message. | unverified | $0.02 | — | 53 | |
blockrun.ai Discover markets where high-performing wallets are active | unverified | $0.005 | — | 51 | |
blockrun.ai Aggregated wallet profile across chains. | unverified | $0.0075 | — | 50 | |
blockrun.ai Fear & Greed index history. | unverified | $0.0075 | — | 47 | |
blockrun.ai Token rankings (market cap, volume, change). | unverified | $0.0075 | — | 46 | |
x402 Entity-ID ResolverInference entityresolver.xyz Name in, official IDs out. Give it a company or crypto name or ticker ("Apple", "ETH", "Stripe") and get the verified IDs that identify it everywhere: SEC CIK + ticker, GLEIF LEI, Wikidata QID, CoinGecko slug. Every ID is pulled live from the entity's own official registry and tagged with the sources that agreed — so you can check it yourself, not trust an LLM's guess. Ranked by confidence. | unverified | $0.005 | — | 36 | |
nonvisceral-eloisa-mousily.ngrok-free.dev Bundled market state inference API: combines BTC/ETH regime direction, liquidation cascade risk + open interest velocity, and composite crypto sentiment in a single call. Discounted vs $0.07 a-la-carte. Designed for trading agents that need a complete market snapshot per decision cycle. | unverified | $0.06 | — | 36 | |
blockrun.ai Fetch + clean a web page into markdown. | unverified | $0.0075 | — | 34 | |
orbisapi.com Fetch any URL and return clean Markdown with metadata and LLM-ready chunks — flat $0.10 per call, no credit multiplier | unverified | $0.005 | — | 30 | |
orbisapi.comInference orbisapi.com Free LLM inference — Llama 3.3, Gemma 3, Mistral, Qwen via a single endpoint | unverified | $0.001 | — | 29 | |
blockrun.ai Technical indicators (RSI, MACD, Bollinger, EMA). | unverified | $0.0075 | — | 28 | |
blockrun.ai Query historical Polymarket trade data with flexible filtering | unverified | $0.001 | — | 27 | |
orbisapi.com Prioritize radiology images by clinical urgency using AI detection of critical findings in X-rays, CT, and MRI scans. Re | unverified | $0.88 | — | 26 | |
anthropic.yeetful.comInference anthropic.yeetful.com Yeetful — Anthropic Claude Haiku 4.5 inference over MCP Streamable HTTP, hosted at anthropic.yeetful.com. Exposes ask_claude (single-prompt completion) and claude_chat (multi-turn) tools, capped at 256 output tokens per call. Pay-per-call in USDC on Base. Operated by yeetful.com. Keywords: yeetful, anthropic, claude, haiku, mcp, x402, inference, llm. | unverified | $0.01 | — | 25 | |
orbisapi.comInference orbisapi.com Live web data enricher data for agents and LLMs. | unverified | $0.005 | — | 25 | |
blockrun.ai Get OHLCV candlestick data for a Binance trading pair | unverified | $0.005 | — | 23 | |
orbisapi.com Count tokens and estimate LLM costs for 15+ models before every API call — built for AI agents | unverified | $0.005 | — | 22 | |
orbisapi.comInference orbisapi.com Live web data quality scorer data for agents and LLMs. | unverified | $0.005 | — | 22 | |
blockrun.ai AI-curated crypto news feed. | unverified | $0.0075 | — | 21 |
GET api.ioi.md/v0/endpoints · verified volume + provider trust are ioi-only signals