aid: hostdefi name: HostDeFi description: 'HostDeFi is a non-custodial Solana token-risk service that scans a mint before a purchase — mint and freeze authority state, liquidity depth and lock status, holder concentration, dangerous Token-2022 extensions, sell simulation and contract flags. The public contract is an OpenAPI 3.1 document of 26 operations served from hostdefi.com/api with API-key authentication. HostDeFi also exposes an x402 machine-payment surface: an authority quick-check endpoint that returns HTTP 402 with a signed payment challenge, priced in USDC and payable on either Solana or Base, so an agent can buy a single check without an account.' type: Index url: https://raw.githubusercontent.com/api-evangelist/hostdefi/refs/heads/main/apis.yml created: '2026-08-21' modified: '2026-08-21' specificationVersion: '0.23' tags: - Solana - Blockchain - Token Risk - Security - DeFi - x402 - Agent Commerce - Crypto - MCP - Machine Payments tags_raw: - solana - token risk - defi - rug pull - x402 apis: - aid: hostdefi:hostdefi-token-risk-api name: HostDeFi Token Risk API description: Token risk scanning for Solana mints — authority state, liquidity, holder concentration, Token-2022 extension flags and sell simulation. 26 operations, API-key authentication. humanURL: https://hostdefi.com/docs/api/ baseURL: https://hostdefi.com/api tags: - Solana - Token Risk - Security properties: - type: OpenAPI url: openapi/hostdefi-token-risk-api-openapi.yml - type: Documentation url: https://hostdefi.com/docs/api/ - type: APIReference url: https://hostdefi.com/api/v1/openapi.json - type: FinOps url: finops/hostdefi-x402-challenge.json - type: MCPServer url: mcp/hostdefi-tools-list.json common: - type: MCPServer url: mcp/hostdefi-tools-list.json - type: FinOps url: finops/hostdefi-x402-manifest.json - type: LLMsTxt url: llms/hostdefi-llms.txt - type: Website url: https://hostdefi.com - type: DeveloperPortal url: https://hostdefi.com/docs/api/ maintainers: - FN: HostDeFi email: apisio@hostdefi.com url: https://hostdefi.com x-provenance: added: '2026-08-21' method: searched source: https://hostdefi.com/llms.txt note: 'Submitted via apis.io/add on 2026-08-20 (twice, as "HostDeFi" and "HostDeFi Token Risk API" — one provider, two records at the gate). The submitted APIs.json URL, https://hostdefi.com/apis.json, returns 404 against a control that also 404s, so the 404 is real; that is a bad pointer in the submission, not an absent surface. NO API-CATALOG IS RECORDED, DELIBERATELY. https://hostdefi.com/.well-known/api-catalog returns HTTP 200, but the body is the site''s HTML homepage, not a linkset. Recording it as an APICatalog would hand HostDeFi credit for a discovery document it does not serve. The path answering 200 is not the same as the artifact existing. The x402 surface was verified live. GET /api/v1/x402/authority/solana/{mint} without a payment header returns HTTP 402 with x402Version 1 and two `accepts` entries — USDC on Solana and on Base, maxAmountRequired 5000, 60-second timeout, with a named feePayer. The saved challenge in finops/ is that response verbatim. The REST API was probed at /api/v1/health and returned 200. One thing for the provider rather than for us: the published contract lists a second server, https://awake-integrity-production-faa0.up.railway.app, which also answers /v1/health with 200. That looks like a staging backend reachable from a production specification. CORRECTION, recorded because it matters more than the finding. This record was first built by hand from llms.txt plus probed paths, and it UNDER-reported the provider. The Add-API gate''s own stub named two artifacts the hand pass missed, and both are real: a hosted MCP server at https://hostdefi.com/api/v1/mcp, which answers tools/list anonymously with NINE tools, and an x402 discovery manifest at https://hostdefi.com/.well-known/x402 serving application/json with x402Versions [1,2], a payTo address and a facilitator. The MCP tools carry their own prices in their descriptions: scan_token and get_x402_pricing are free, token_risk_verdict $0.01/call, pregrad_signals $0.03, radar_alerts $0.01, x402_provider_risk $0.02, swap_evm_quote $0.01, swap_evm_price $0.002, and buy_api_key $5 as a single payment that mints a 30-day Agent-plan key -- an agent can buy its own credential. Guessing paths and reading llms.txt was not sufficient here; the gate''s discovery was better than the hand pass.'