Api x402 offerings

Call OpenAI's gpt-5.4-mini via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.04 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-5.6-terra via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.25 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-5.4 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.25 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-5.2 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.20 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-5.4-nano via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-5.1 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.15 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

OpenAI-compatible text embeddings API — standard /v1/embeddings request shape: input as a string or a batch of up to 128 strings (64000 chars total on text-embedding-3-small, the default; 24000 on text-embedding-3-large). Flat $0.005 per call in USDC via x402, no OpenAI account or API key. Returns float vectors for RAG, semantic search, clustering, and dedup.

Call OpenAI's gpt-5.6-luna via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.06 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-4.1 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.09 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

OpenAI-compatible chat completions gateway (alias of /v1/chat/completions for api/v1-style base URLs) — standard request shape, model chosen in the body: any gpt-* chat model (not Claude/embeddings), each at its own price. Priced per model, $0.005–$0.65 per call in USDC via x402, no API key: POST unpaid and the 402 quotes your model's exact price. Supports response_format json_object. Free model catalog: GET /v1/models.

OpenAI-compatible text embeddings API (alias of /v1/embeddings for api/v1-style base URLs) — input as a string or batch of up to 128 strings, model text-embedding-3-small (default) or text-embedding-3-large. Flat $0.005 per call in USDC via x402, no OpenAI account or API key.

Call OpenAI's gpt-4.1-mini via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

Call OpenAI's gpt-4o via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.10 per request in USDC. Standard OpenAI chat.completions shape. EVERY call is bounded by a 16000-token combined input budget (real tokenizer) plus the 48000-char cap; output 2048. Vision: up to 4 https image_url parts (detail low/high/auto).

Call OpenAI's gpt-4.1-nano via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped input and output.

OpenAI-compatible chat completions gateway — standard /v1/chat/completions path and request shape, model chosen in the body: any gpt-* chat model (not Claude/embeddings), each at its own price. Priced per model, $0.005–$0.65 per call in USDC via x402, no API key: POST unpaid and the 402 quotes your model's exact price. Supports response_format json_object. GET /v1/models (free) lists every model with its endpoint and price.

Fetch any URL and get the raw body back — JSON parsed, everything else as text — from safe server-side egress. For data APIs (ArcGIS, government/open-data portals, blob storage) that /web/extract's markdown conversion mangles. No API key, SSRF-guarded, billed only on a usable 2xx response. Pass url as ?url= (GET) or a JSON body (POST).

Which x402 endpoint should I call? Describe the job in plain words; get the 3 best endpoints from different providers, each health-checked live just now, with its current price quote, its inputs and the reasons — ranked over the whole Coinbase Bazaar catalog by fit, real paying demand and health. Uncharged when nothing passes.

OpenAI-compatible chat completions gateway (alias of /v1/chat/completions for api/v1-style base URLs) — standard request shape, model chosen in the body: any gpt-* chat model (not Claude/embeddings),…

Call OpenAI's gpt-5.6-terra via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.25 per request in USDC. Standard OpenAI chat.completions request/response shape, capp…

Call OpenAI's gpt-4.1 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.09 per request in USDC. Standard OpenAI chat.completions request/response shape, capped inp…

Call OpenAI's gpt-4.1-nano via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capp…

Call OpenAI's gpt-5-nano via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.005 per request in USDC. Standard OpenAI chat.completions request/response shape, capped…

Call OpenAI's gpt-5.2 via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.20 per request in USDC. Standard OpenAI chat.completions request/response shape, capped inp…

Call OpenAI's gpt-5.6-luna via a single pay-per-call x402 endpoint — no OpenAI account or API key needed, pay $0.06 per request in USDC. Standard OpenAI chat.completions request/response shape, cappe…