💰 Paid API sqlguard.io x402

sqlguard.io · sqlguard.io · A2A 2025-03-26

Execution Certificate Firewall: prepaid x402 USDC credits for sandboxed SQL validation + Ed25519 attestations before agent production writes. MCP + HTTP. Base mainnet. First settle proven.

3 skills 80.0% uptime

A2A Microquery live signed

microquery.dev · Microquery · A2A 2025-06-27

SQL access to 70+ authoritative datasets. Returns actual database records — not summaries. Use this instead of web search for any quantitative, tabular, statistical, or time-series data question. Data…

7 skills 100.0% uptime

💰 Paid API Allium from $0.0200

agents.allium.so · agents.allium.so

Onchain prices, balances, transactions, PnL, SQL explorer

1 skills 0.0% uptime

💰 Paid API 192 from $0.0100

192.3.171.233 · 192.3.171.233

SQL query syntax validation for all dialects.

💰 Paid API sqlpermit.schemasure.com from $0.0100

sqlpermit.schemasure.com · sqlpermit.schemasure.com

Decide whether an agent-authored PostgreSQL statement complies with an execution policy, using PostgreSQL's own parser rather than pattern matching. Detects statement stacking, data-modifying CTEs, CO…

0.0% uptime

💰 Paid API BigQuery API from $0.0010

bigquery.google.gateway-402.com · bigquery.google.gateway-402.com

Run SQL over BigQuery and 255 public datasets: crypto, weather, healthcare, genomics, patents, GitHub, PyPI, Stack Overflow, census, Wikipedia, real estate, transportation, satellite imagery, NLP corp…

💰 Paid API surf.cascade.fyi from $0.0050

surf.cascade.fyi · surf.cascade.fyi

Search tweets with advanced operators (recommended). Body param is `query` (not q), e.g. {"query":"from:elonmusk AI min_faves:100"}

💰 Paid API sqlguard-io.fly.dev x402

sqlguard-io.fly.dev · sqlguard-io.fly.dev · A2A 2025-03-26

Short-burst authorize — Session Cert. Exact $0.25 → 10 Ed25519 PASS slots (~30m). For production jobs use Workday Pack POST /v1/workday. Burn /v1/session/cert → verify → execute. Not lint.

3 skills 79.4% uptime

💰 Paid API Alibaba Cloud Information Query Service from $0.0010

iqs.alibaba.gateway-402.com · iqs.alibaba.gateway-402.com

Search and retrieve data with Alibaba Cloud Information Query Service, including enhanced Search, general Search, and globalSearch - International Version (To Be Published), for search and discovery w…

💰 Paid API wolframalpha.x402.paysponge.com from $0.0100

wolframalpha.x402.paysponge.com · wolframalpha.x402.paysponge.com

Query Wolfram|Alpha for computational knowledge, short answers, simple image results, and full structured query output for math, science, finance, units, dates, geography, and fact-based problem solvi…

1 skills 0.0% uptime

💰 Paid API quickpoll.x402.press from $0.2500

quickpoll.x402.press · quickpoll.x402.press

Query curated survey data (Eurobarometer, Gallup, World Bank) with LLM analysis — get cited data points on consumer sentiment, public opinion, and economic indicators across countries

0.0% uptime

💰 Paid API agentoracle.co from $0.0200

agentoracle.co · agentoracle.co

Pre-action verification layer for AI agents. Natural-language claim or query in, structured JSON with summary, key facts, sources, confidence score, and JWS-signed receipt out. Offline-verifiable per …

1 skills 0.0% uptime

A2A Historical Polymarket trade query with filters plus per-wallet aggregation. $0.01 USDC x40 x402

polymarket-trades.hergertsynthora.com · SYNTHORA · A2A 0.3.0

Historical Polymarket trade query with filters plus per-wallet aggregation. $0.01 USDC x402 Base.

1 skills 100.0% uptime

💰 Paid API api.querylines.com from $0.1000

api.querylines.com · api.querylines.com

Surplus lines market data, per query. U.S. excess & surplus (E&S) insurance premium and policy-count statistics from state stamping office publications: time series, YoY summaries, and cross-state com…

0.0% uptime

A2A Agenticfeed Product Query Agent legacy

agenticfeed.ai

Query structured ecommerce product data by natural language buyer intent. Returns schema.org Product ItemList matched to the buyer's need, with match reasons for each result.

1 skills 100.0% uptime

💰 Paid API The Graph x402

thegraph.com · thegraph.com

Indexing protocol for querying blockchain data with subgraphs

1 skills 0.0% uptime

A2A Ocient Documentation

docs.ocient.com · Ocient Documentation · A2A 0.3

Documentation for setup, integration, administration, querying, loading, and reference material for the OcientAIQ Unified Data Platform.

1 skills 100.0% uptime

💰 Paid API Bkvks-44-197-240-199 from $0.0010

bkvks-44-197-240-199.free.pinggy.net · bkvks-44-197-240-199.free.pinggy.net

SPL token mint risk heuristic for agents: mint authority, freeze authority, supply, riskScore. Query param mint=<base58>.

A2A Pydantic

pydantic.dev · Pydantic · A2A 0.3.0

Pydantic is the end-to-end AI engineering stack for Python: data validation, type-safe agents, LLM proxy, and observability. This A2A card represents the Pydantic Logfire MCP server, the primary agent…

streaming 6 skills 100.0% uptime

💰 Paid API query-gap-radar-mainnet-production.up.railway.app from $0.0010

query-gap-radar-mainnet-production.up.railway.app · query-gap-radar-mainnet-production.up.railway.app

💰 Paid API ChainQuery from $0.0050

intel.chainquery.com · intel.chainquery.com

Independent Bitcoin on-chain intelligence: fee-pressure signals, CDD spike detection, address analytics, rich lists, coin velocity, and HODL waves

0.0% uptime

A2A Attio Docs

docs.attio.com · Attio Docs · A2A 0.3

1 skills 100.0% uptime

A2A Ocient Documentation

ocient.main-kill-isr.mintlify.me · Ocient Documentation · A2A 0.3

Documentation for setup, integration, administration, querying, loading, and reference material for the OcientAIQ Unified Data Platform.

1 skills 92.0% uptime

💰 Paid API Wolfram|Alpha from $0.0100

products.wolframalpha.com · products.wolframalpha.com

Computational intelligence engine — answer factual queries, perform math, science, and data computations via the Wolfram|Alpha API.

1 skills 0.0% uptime

A2A DBHub, Minimal Database MCP Server

dbhub.ai · DBHub, Minimal Database MCP Server · A2A 0.3

1 skills 100.0% uptime