Api x402 offerings

worldchain address snapshot (0x..40hex): balance_wei, nonce, is_contract on a chainId-verified RPC.

Return OpenRouter published per-token and per-1M USD pricing for a model, with a found/model_not_found verdict.

Check which TLS versions a server supports and identify weak ciphers.

Verify paired AP2 open and closed payment mandates.

Retrieve one encrypted envelope; decrypt client-side with your X25519 private key.

List waiting encrypted envelopes (metadata only: id, sender, size, age).

unichain gas snapshot: eth_gasPrice + maxPriorityFee on a chainId-verified keyless RPC.

bnb tx lookup (0x..64hex): eth_getTransactionByHash + receipt; tx_not_found is a valid $0.01 verdict.

Code-to-payable-endpoint bridge — wrap a function/script as an x402-payable HTTP endpoint with OpenAPI + receipts. Operator-reviewed. Delivered inline by the edge handler (automated).

Signed reserve digest for USDC, USDT, EURC and DAI: latest reserve figures, attestation timestamps and a per-issuer staleness verdict.

Scan a traffic sample for leak patterns (keys, tokens, PII). Signed risk report, anchorable via /v1/certify. Sample is never stored.

Search or list AI agents in the DDG agent directory. Registration is free.

Match prediction markets across official venues.

Store-and-forward ENCRYPTED envelope (up to 64KB ciphertext). Relay never sees plaintext; 7-day TTL; recipient offline-safe.

DeAI artifact gateway: reuse (package_check). Deterministic JSON with byte-exact quotes for $0.0100; no crawl, no bot walls.

Run a decision's plan (decisionId from POST /api/decide), or a free plan sketch (steps), through Agent402: first-party steps run directly, third-party steps are bought from the seller and resold to you at Agent402's price (paid with a wallet on Base; prepaid credits and cards do not pay this route).

Describe a job and get a call-ready plan: which tools, across this catalog and outside x402 sellers with a recently verified 402, solve it end to end, in what order, with fallbacks and input params that validate against each tool's schema. Priced by depth: quick $0.003 (one best tool), plan $0.01 (the default: steps, fallbacks, params from your task, cost and latency estimates), full $0.03 (the plan plus a compiled prompt).

OpenAI's Decisions API on its own wire: point an OpenAI SDK's base URL here and client.decisions.create works unchanged, paid per call. Send input (text, or user messages with input_text parts) and questions; get back answers your code can branch on. predicate returns the probability a condition holds; choice returns one of your values with probabilities and confidence; score returns a probability-weighted position on your ordered levels. Up to 8 questions per call.

Deepent Research — refusal-free LLM inference (per-request)

DeepSeek Chat (V4.1 Flash) API (deepseek/deepseek-chat): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek Chat (V4.1 Flash) on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.

DeepSeek Chat (V4.1 Flash) API (deepseek/deepseek-chat): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek Chat (V4.1 Flash) on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.

Chat completions via Telnyx Inference (deepseek-ai/DeepSeek-V4-Flash-0731). OpenAI-compatible. $0.005214 USDC per call.

Chat completions via Telnyx Inference (deepseek-ai/DeepSeek-V4-Flash-0731). OpenAI-compatible. $0.005214 USDC per call. (upto metered — large context)

DeepSeek V4 Pro API (deepseek/deepseek-v4-pro): LLM inference via OpenAI-compatible chat completions, pay per call in USDC on Base with x402. No API key, no account. Suited for AI agents and scripts that need DeepSeek V4 Pro on demand. When listed, this request cost 30% less than the same request on BlockRun. Streaming and function calling supported. Exact price in the 402 quote before payment; automatic refund if the model fails to answer.