All services

Base GPT wrapper API using x402 payments. Default direct call: model gpt-5-mini, max_output_tokens=2000, fixed price 0.01 USDC for up to 1000 input tokens. For all other settings the price is computed per model as (input_tokens * input_price_per_million + max_output_tokens * output_price_per_million) / 1,000,000, with a minimum of 0.001 USDC and always rounded up to 6 decimals. Optional max_input_tokens lets you cap the input tokens used for pricing; if the message is longer than this cap the server returns an error instead of under-pricing. Optional action=message (or omitting action) performs a direct GPT call with the given message. Optional action=create creates a custom agent with the given message as preprompt for 0.001 USDC (no OpenAI call), stores a base_price_usdc using (max_input_tokens_for_agent or 1000) + preprompt + max_output_tokens, and returns a custom_id. Optional action=list lists up to 100 recent custom agents for the paying wallet for 0.001 USDC without calling OpenAI. Custom agents can be called via POST /base/llm/gpt with custom_id, or POST /base/llm/gpt/{custom_id}. Each custom agent has a fixed price per call based on its stored preprompt, model, max_output_tokens and max_input_tokens; if the runtime message is longer than max_input_tokens the server returns an error. This specific request uses model gpt-5-mini with max_output_tokens=2000. Pricing mode: default. Prepaid price (x402) for this request: 0.010000 USDC.

Base text-to-speech API paid via x402. Converts text input into a hosted audio URL. Dynamic pricing for TTS: the prepaid price is computed per request based on the input and charged upfront via x402. Estimated characters for this request: 15. Prepaid price for this request: 0.009000 USDC.

Base coin price mini-endpoint for major tokens only. Returns spot prices and 24h stats for well-known tickers like btc, solana, eth, xmr, ltc and other large-cap coins, never microcaps. Pass an optional ticker to get a single-coin 24h snapshot with price, symbol, changeRate, changePrice, high and low, or omit ticker to receive a compact basket of top tokens in a fixed order. Cost: 0.001 USDC per request.

Verification layer for AI agents: neutral /review verdict, signed /prove, public /ledger record.

invinoveritas /x402/seller-intel — recomputable x402 BUYER intelligence + a verdict on why you're buried: pass a {wallet} for its on-chain behavior (catalog-walker vs real-customer verdict, spend, the sellers winning its money), or your {domain} for a DISCOVERABILITY audit (catalog offset + the daily-crawl mechanics). Seller intelligence no other listing offers. Pass a buyer {wallet} and get its on-chain behavior (catalog-walker vs real-customer verdict, total spend, the sellers winning its money, daily crawl cadence); or pass your {resource}/{domain} and get a DISCOVERABILITY audit — your exact CDP-catalog offset + freshness, how the recency-ranked depth-first daily crawl (~04:00 UTC, NOT keyword-filtered) actually finds listings, why you're buried, and the honest levers. Recomputable from public Base RPC + the CDP catalog. Free framework at GET /x402/seller-intel/preview. POST {wallet} or {resource}; pay-per-call USDC on Base; no subscription. • Or get it all in one governed call — reason + this + memory, passed through governance and remembered to your wallet-keyed home — for less than the sum: POST /residence/act (a home for your agent).

DNS propagation checker. Compares a DNS record across public resolvers (Google, Cloudflare, Quad9, OpenDNS) to spot propagation lag or split-horizon answers.

Web page to clean markdown. Converts any URL into LLM-ready markdown plus structured metadata — a keyless alternative to Firecrawl.

Return timestamped Solana priority-fee quantiles for compute-unit bidding, optionally localized to up to 20 writable accounts. Designed for recurring transaction-bot polling at $0.002 per call.

NHTSA NCAP 5-Star crash-test ratings for a US vehicle by (make, model, modelYear). Returns one item per crash-tested body style with the overall star rating, front/side/rollover sub-ratings, modeled rollover probability, crash-avoidance tech flags (electronic stability control, forward-collision warning, lane-departure warning), and complaint/recall/investigation counts. A vehicle with no crash testing returns an empty list (a valid result, not an error). Backed by NHTSA's public 5-Star Safety Ratings program; data is public-domain US government records.

Full business-entity dossier from a state registry — master record plus officers/principals, registered agent (name, phone, email, address), and filing history — the detail layer that flat registry search omits. v1 state: CT (Connecticut). Resolve by entityId (state registry record id), accountNumber, or name (partial; most recent registration wins). Returns entity status, type, registration date, mailing address, minority/woman/veteran/disability/LGBTQI ownership flags, officers, registered agent, and recent filings. KYB, vendor due-diligence, and counterparty-verification staple, sourced from the official state open-data portal.

AI phone calls - automated voice conversations with AI agents, pay per minute with USDC

Real-time cryptocurrency prices for any coin in any fiat currency

Real-time cryptocurrency prices for any coin in any fiat currency

AI intent execution - natural language commands translated to API actions automatically

AI chat completions - 80+ models (GPT-4o, Claude, Gemini, DeepSeek), pay per token with USDC

LastLook Data — EFFR vs IORB spread. Shows where the effective Fed funds rate trades relative to interest on reserves.

AI image generation - DALL-E 3, Flux, GPT-Image models, pay per image with USDC

DeFi yield aggregator - top lending/staking rates across Aave, Compound, Lido, and more

Exa neural search - AI-native web search with structured results and citations

AI API endpoint - pay per request with USDC on Base and Solana

AI text embeddings - vector representations for semantic search and RAG pipelines, pay per request with USDC

AI text-to-speech - natural voice synthesis with multiple voices, pay per request with USDC

USD Coin

Generate an i402 plan from a natural-language intent. Returns a 402 response with a list of x402 calls the agent should sign and execute.