"Free PostgreSQL Database Solutions" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pre-trade token safety check for AI agents. Simulates a sell before you buy, then returns one low/medium/high/unknown verdict with the signals behind it: sellability, buy/sell tax, liquidity depth, pair age, same-ticker impersonation, owner powers from bytecode. Ethereum, BSC, Base, Solana. Fail-closed - a check that cannot run answers unknown, never low. Publishes its own measured error rate with the benchmark harness in the repo. Free, no signup, no API key, MIT.
Passport, ID and MRZ recognition via doc.cheap – Free: 100 documents every month, then $0.01 each
Free website privacy scanner for pre-consent cookies, trackers, consent, policy, and HTTPS/TLS.
Free deterministic security scan of public git repos: OSV.dev vulnerable deps, secrets, config lint.
Independent AI-governance measurement MCP. Free reads + x402 evidence. Measurement not cert.
Domain exposures: breaches, infostealers, ULP heap, cookies. Counts and samples, free.
Smart contract security screening for Base. Check any contract or token for risk before interacting with it: Solidity source verification, upgradeable proxies and admin or mint powers, holder concentration, dangerous selectors, and B20 issuer powers. It surfaces the usual rug pull and scam indicators. The free tool needs no wallet and no API key; the paid Flash Audit (3.49 USDC over x402) returns a report with an anchored SHA-256. Payment is the only gate.
Free MCP server of security & dev API tools -- supply-chain, CVE, DNS, WHOIS, OFAC, Cosmos SDK.
Audit MCP configs and skill files for over-broad scope and injection risk. 6 of 8 free.
Webhook delivery for agents and workflows, with encrypted queues, retries and signed relay observations. 100 free admissions per hook/day; extra pack: 0.10 USDC for 100. Setup and n8n guide: https://datoka.dev/hooks. Recipients must deduplicate events.
Incident-reporting deadlines from the law: CRA, NIS2, DORA, GDPR, HIPAA, SEC 8-K. 6 of 9 tools free.
The hubs are the records; A2A-Passport.ai issues the passport.
Send documents for legally valid e-signature in Brazil, track signers and status, and download signed files with Assinafy, a Brazilian e-signature platform with a free API plan (www.assinafy.com.br).
Mint an agent identity in two free calls. Verify anyone. Earn 75% when someone reads you.
Smart contract security screening for Base. Check any contract or token for risk before interacting with it: Solidity source verification, upgradeable proxies and admin or mint powers, holder concentration, dangerous selectors, and B20 issuer powers. It surfaces the usual rug pull and scam indicators. The free tool needs no wallet and no API key; the paid Flash Audit (3.49 USDC over x402) returns a report with an anchored SHA-256. Payment is the only gate.
Neutral fairness computation for agents: two or more parties submit sealed inputs, a published deterministic algorithm runs (fair division, verifiable random selection, Shapley shares), and every party receives an identical signed certificate anyone can re-run and verify for free.
Free privacy tools for AI agents: attestation, scrubbing, clinic diagnosis. No tracking.
PHION 1.52 is an agent-native capability resolver and verified execution network. Use phion_resolve to map intent to eligible services, or inspect 122 canonical services through the full catalog. Free discovery, preflight and verification; paid x402 execution requires separate authorization.
Pre-send EVM address checks: free pre-check, $0.01 check, $0.05 deep scan. x402: payment is auth.
Persistent knowledge graph for AI-augmented teams. Store decisions, findings, and standing rules across agent sessions with semantic search and typed connections. Includes cross-session memory, audit trail, workspace isolation, and secret detection. Built for teams running agents that need to remember. Free until launch with team tier as default, anon trial available.
