Spraay x402 Gateway

OpenAI-compatible chat completions across 200+ models (BlockRun + OpenRouter). Streaming, function calling, vision.

List all available AI models with IDs, capabilities, and pricing. Call before chat/completions to pick the right model.

Batch USDC/ERC-20 payments to up to 200 recipients in one atomic, non-custodial transaction. Implements Batch Payments for Agents (BPA) 1.0. Units: amounts[] are RAW base units (USDC has 6 decimals, so "1500000" = $1.50); batch.totalAmount/fee/totalWithFee are human-decimal strings; approvalRequired.amount is RAW base units - pass it verbatim as the ERC-20 allowance - while approvalRequired.amountFormatted is the human-decimal form; transaction.gasLimit is hex. Settles on Base (default) or peaq via the optional "chain" field; other chains are rejected.

Estimate gas, protocol fee and total for a batch payment before sending. Runs the same amount and fee math as batch/execute, so a quote cannot disagree with what execute charges. Units: amounts[] are RAW base units (USDC has 6 decimals, so "1500000" = $1.50); totalAmount/fee/totalWithFee are human-decimal strings; suggestedGasLimit is a DECIMAL string (unlike execute's transaction.gasLimit, which is hex). Accepts the same optional "chain" field as batch/execute (base or peaq). Call before batch/execute.

Send batch payments to many recipients in one transaction on the Stellar network.

Estimate fees for a batch Stellar payment before sending.

Send batch XRP payments to many recipients in one transaction on the XRP Ledger.

Estimate fees for a batch XRP payment before sending on the XRP Ledger.

Get current XRP Ledger network info — base fee and reserve requirements.

Get a token swap quote across Uniswap V3, Aerodrome and other DEXes on Base.

List tokens available for swapping on Base via Uniswap V3 / Aerodrome with addresses, symbols, and decimals. Call before swap/quote.

Execute a token swap on Base via the MangoSwap router (Uniswap V3 / Aerodrome).

Jupiter v6 swap quote on Solana — price, route, slippage. Solana-native.

Build unsigned Jupiter swap transaction on Solana. Client signs and submits.

Helius DAS: list all assets (SPL tokens + NFTs) owned by a Solana wallet.

Helius DAS: full metadata for a single Solana asset (SPL token or compressed NFT).

Pyth latest price for one feed (symbol alias or 64-char hex feed ID).

Pyth batch latest prices (up to 50 feeds, comma-separated symbols or hex IDs).

Aggregated oracle price feed across multiple sources.

Current gas prices across Base, Ethereum and supported chains with fast/standard/slow tiers. Time transactions and avoid overpaying.

Live stablecoin and fiat FX rates (USDC, USDT, DAI, major fiat). Use for multi-currency payroll and cross-border payment normalization.

Cross-chain bridge quote across LiFi-aggregated routes.

List networks supported by the cross-chain bridge (Base, Ethereum, Solana, XRP Ledger, Stellar and more) with chain IDs. Call before bridge/quote.

Run payroll: batch USDC/stablecoin payments to a list of employees or contractors in one transaction.

Estimate total cost and gas for a payroll run before execution. Returns per-recipient breakdown. Call before payroll/execute.

List stablecoins supported for payroll (USDC, USDT, DAI) across Base, Ethereum and Solana. Call before payroll/execute to pick the payout token.

Create a crypto-native invoice with on-chain payment tracking in USDC on Base/Ethereum. For contractor billing, vendor payments, and AR workflows.

List invoices for a wallet or org with status, amounts, and payment history. For AR tracking, status monitoring, and financial reporting.

Retrieve a single invoice by ID with payment status, recipient, amount, and on-chain settlement details. For payment verification and reconciliation.

Wallet profile: balances, top tokens, activity tier, age, and risk signals for any address.

Full transaction history for any wallet across Base and Ethereum: decoded transfers, swaps, contract calls, and timestamps. For portfolio tracking and due diligence.

Create an on-chain escrow holding funds until release conditions are met. Trustless conditional payment between two parties.

List active and historical escrow contracts for a wallet with status, locked amounts, counterparties, and release conditions. For contract oversight.

Retrieve a single escrow by ID with locked amount, parties, status, and release conditions. For real-time monitoring and release-trigger evaluation.

Deposit USDC into an existing escrow to lock funds pending conditions. Required after escrow/create and before escrow/release.

Release locked escrow funds to the recipient once conditions are met, finalizing a trustless payment. Pairs with escrow/create and escrow/fund.

Cancel an active escrow and return locked funds to the depositor. For dispute resolution, expired milestones, or abandoned-contract cleanup.

AI classification of a wallet as EOA, contract, exchange, DeFi protocol, DAO, or bot, with risk signals. For counterparty screening and smart routing.

AI classification of an on-chain transaction as swap, transfer, mint, bridge, liquidation, or contract call, with decoded intent and risk flags. For monitoring and accounting.

Plain-language explanation of a smart contract: functions, risks, and ownership, plus security flags. For due diligence and safe-interaction checks.

AI intelligence briefing for a wallet, token, or protocol, synthesizing on-chain activity and holdings into a concise summary. For research and reporting.

Send transactional or notification email via Resend with HTML templates and custom from address. For payment confirmations, invoice delivery, and alerts.

Send SMS text messages via Twilio. For payment alerts, 2FA codes, on-chain event notifications, and urgent agent-to-human messaging.

Check delivery status of a sent email or SMS (delivered, bounced, or pending). For delivery confirmation and retry logic.

Register a webhook to receive real-time event callbacks for payments, on-chain events, and job completions.

Send a test event to a registered webhook to verify delivery and payload format.

List all registered webhooks with their URLs, subscribed events, and status.

Delete a registered webhook to stop receiving its event callbacks.

Send an end-to-end encrypted wallet-to-wallet message via XMTP. For agent-to-agent and agent-to-human messaging.

Read encrypted XMTP messages for a wallet address. For agent inboxes and wallet-to-wallet conversations.

Make a raw JSON-RPC call to Base, Ethereum, and other supported chains. Premium multi-chain node access without running your own.

List chains supported by the multi-chain RPC endpoint with their IDs and allowed methods. Call before rpc/call.

Pin content to IPFS or Arweave for permanent decentralized storage. Returns a CID for retrieval.

Retrieve content from IPFS or Arweave by CID. Pairs with storage/pin.

Check the pin status of content on IPFS or Arweave (pinned, pending, or failed).

Schedule a recurring trigger with 5-field cron (UTC, hourly minimum, 100 runs included). Each run sends a signed cron.triggered webhook to your callback_url so your agent can run batch/execute or payroll/execute. For recurring payouts and reminders.

List your own scheduled cron jobs with their schedules, actions, next run times (UTC) and runs remaining.

Cancel one of your own scheduled cron jobs so it no longer runs.

Ingest structured log entries for agent observability and audit trails. Batch up to many entries per call.

Query ingested structured logs by service, level, and time range. For debugging and monitoring agent activity.

Screen a wallet or person against OFAC sanctions lists for compliance. Returns risk result and match details.

Check the status and result of a previously submitted KYC/sanctions verification.

Create an authenticated session token with scoped permissions and TTL for an address. For agent auth and delegated access.

Verify a session token and return its validity and granted permissions.

Record an immutable audit-trail entry (action, actor, resource) for compliance and accountability.

Query the audit trail by actor, action, and time range for compliance reporting and investigations.

Calculate crypto capital gains and losses using FIFO accounting across a set of transactions. For tax reporting.

Generate an IRS Form 8949-compatible tax report from calculated gain/loss events.

Run GPU inference via Replicate: image, video, audio, and LLM workloads.

Poll the status of a GPU prediction job by ID and retrieve output when complete. Call after gpu/run.

GPU inference via Spraay Direct operator — instant USDC settlement to GPU host.

Web search powered by Tavily. Returns ranked URLs with snippets.

Extract clean, LLM-ready text content from a list of URLs. For RAG pipelines and web scraping.

Question answering over fresh web results. Retrieval-augmented generation (RAG) out of the box.

Live token prices for one or many tokens, sourced from on-chain and market feeds.

Get all ERC-20 and native token balances for a wallet address on Base and Ethereum.

Resolve an ENS name or Base name to its wallet address (and reverse). For human-readable addresses.

List agent wallets with pagination.

Get agent wallet details.

Get chain-specific addresses for a wallet.

Sign a message with an agent wallet.

Sign and broadcast a transaction from an agent wallet.

Dispatch a paid task to an RTP-registered robot. x402 payment held in escrow until completion.

Discover RTP robots. Filter by capability, chain, price, status.

Poll the status of a dispatched RTP robot task (pending, in-progress, complete) and retrieve results.

Get the full capability profile of an RTP robot — supported tasks, pricing, and location.

Provision a smart-contract wallet for an AI agent on Base, with programmable spending controls. Non-custodial.

Add a session key to an agent wallet with spending limits and an expiry. For safe delegated, time-boxed spending.

Get an agent wallet's address, balance, and active session keys.

Revoke a session key on an agent wallet, immediately ending its spending authority.

Predict the counterfactual address of an agent wallet before it's deployed. For pre-funding and address reservation.

Dictionary definition with phonetics and examples.

Synonyms and antonyms for a word.

Phonetic transcription and audio URL.

Search 250M+ academic papers (OpenAlex CC0).

Paper metadata by DOI (OpenAlex).

Papers by author name or ORCID (OpenAlex).

Citation graph - cited-by count and references.

Trending papers by topic in the last N days.

Search arXiv preprints by keyword and category.

arXiv preprint metadata by ID.

Latest arXiv preprints by category.

Full Crossref metadata for any DOI.

Search 150M+ works via Crossref (CC0).

Citation count and references for a DOI.

Journal metadata by ISSN.

PubChem compound by name, formula, or CID.

Find structurally similar compounds in PubChem.

Biological assay results for a PubChem compound.

Search 36M+ biomedical papers in PubMed.

Paper metadata by PubMed ID.

Related articles for a PubMed ID.

US Census data by state, county, or zip.

Search Data.gov datasets by keyword.

List decentralized AI models available via Bittensor (SN64). OpenAI-compatible model catalog. Call before bittensor/chat/completions to pick a model.

OpenAI-compatible chat completions routed through the Bittensor SN64 decentralized inference network. Drop-in replacement for OpenAI /v1/chat/completions for censorship-resistant, permissionless LLM access.

Decentralized text-to-image generation via the Bittensor SN19 network. OpenAI-compatible image generation endpoint for permissionless, pay-per-use AI art.

Decentralized text embeddings via Bittensor. OpenAI-compatible embeddings endpoint for RAG pipelines, semantic search, and vector indexing without centralized providers.

LLM text inference and chat completion via 11+ models across Chutes and OpenRouter (GPT-4o, Claude, Llama 3, Mistral). For agent reasoning, summarization, and code generation.

Text-to-image generation via 4 models on Replicate including FLUX and SDXL. For agent-generated art, marketing assets, and visual content.

Text-to-video generation via 2 models on Replicate. For agent-generated video clips, marketing content, and animated visuals.

Text to speech (TTS) and AI music generation. XTTS V2 for natural voice synthesis with cloning, MusicGen for music from text. Voice generation.

Speech to text (STT) transcription. Whisper Large V3 via Replicate. Audio transcription, speech recognition. 100+ languages.

Text embeddings for RAG, semantic search, and similarity. Vector embeddings via Chutes AI (Bittensor). BGE Large v1.5.

Submit up to 50 compute jobs in one batch (text, image, audio, embeddings) at a 10% discount. For high-throughput agent workloads and bulk processing.

Poll the status of a compute job by jobId (processing, succeeded, or failed) and retrieve output when complete. Call after any async compute request.

Deposit USDC to open a prepaid compute credit account with tier discounts ($10+ 5%, $50+ 10%, $200+ 15%). Draw down per inference and refund unused balance anytime. USDC on Base or Solana.

Check remaining compute credit balance, tier, discount, and usage stats for a futures account (CFE ID).

Run a compute job (text-inference, image-gen, video-gen, TTS, STT, embeddings) and deduct cost from the prepaid balance instead of paying per call. Tier discount applied automatically.

Full usage ledger for a compute futures account: every job, model, price, and balance change. For accounting and reconciliation.

Refund the unused compute credit balance back to the original depositor. Only the depositor can request a refund.

Compute futures pricing: tier discounts, per-model costs, and bulk discount info. Call before deposit to evaluate tiers.

Register a supplier in the Supply Chain Trade Protocol (SCTP) with wallet and payment preferences.

Get details for a registered SCTP supplier by ID.

Create a purchase order in SCTP with line items and currency. For B2B procurement and trade.

Get details for an SCTP purchase order by ID.

Submit an invoice against an SCTP purchase order for verification and payment.

Get an SCTP invoice by ID with its verification result and payment status.

AI-verify an invoice against its purchase order. Returns match score and flags.

Execute supplier payment for a verified invoice via batch settlement.

Multi-chain token portfolio (native + ERC-20) with USD values.

Multi-chain NFT holdings with metadata.

Call any view/pure function on any EVM contract.

Encode and broadcast a transaction via an agent wallet.

On-chain DeFi positions across Aave V3, Compound V3, Aerodrome on Base.

Multi-dimensional wallet/agent trust score via ProofLayer. Financial, reliability, trust, social axes + XMTP reputation + on-chain signals. Counterparty due diligence for agent-to-agent payments.

Prediction markets — Polymarket events (Gamma API).

Prediction markets — Polymarket market detail by condition ID.

Prediction markets — Polymarket CLOB orderbook by token ID.

Prediction markets — Polymarket recent trades by condition ID.

Prediction markets — Polymarket search.

Stock market — real-time quote (Finnhub).

Stock market — symbol search (Finnhub).

Stock market — OHLC candles (Finnhub).

Stock market — company profile (Finnhub).

Image generation — DALL-E 3 / GPT-image-2 / FLUX / SDXL.

Image editing — img2img.

Image generation — poll Replicate prediction status.

Info

Health

Stats

Discovery

Free discovery endpoint listing supported tokens with addresses, symbols, and decimals across chains.

Free discovery endpoint listing available GPU model shortcuts (image, video, LLM, audio) with pricing. Call before gpu/run.

Register a robot on the Robot Task Protocol (RTP) network with its capabilities and pricing. Free to register.

Report completion of an RTP robot task and trigger escrow release. Called by the robot.

Update an RTP robot's capabilities, pricing, or availability. Free for registered operators.

Remove a robot from the RTP network so it no longer receives tasks. Free.

Bittensor health

Free tier catalog

Gas prices across 9 EVM chains (Base, Ethereum, Arbitrum One, Polygon, Optimism, Avalanche C-Chain, BNB Chain, Robinhood Chain, peaq). Cached 15s. No payment required.

USDC, ETH, SOL spot prices in USD. Cached 60s. No payment required.

Block height and liveness for 9 EVM chains. No payment required.

Transaction count (nonce) for any EVM address. No payment required.

Validate blockchain address format for EVM, Solana, XRP, Stellar. Pure checksum. No payment required.

Validate a BPA 1.0 batch payment payload (schema only, no cost data). No payment required.

Rough cost estimate for batch payments by recipient count and chain. Returns estimate.supported — whether a batch can actually settle on that chain — alongside estimate.supportedChains. No payment required.

Resolve ENS name or Basename to an address. Cached 5min. No payment required.

Look up AI agent registration from ERC-8004 Identity Registry on Base. No payment required.

Probe any URL to check x402 payment support, pricing, and .well-known discovery. No payment required.

Convert between fiat and crypto or between native units (wei/gwei/lamports/drops). No payment required.

Current Unix timestamp in seconds, milliseconds, and ISO 8601. No payment required.

Generate UUID v4 identifiers (up to 100). No payment required.

DEX token pair search (DexScreener)

DEX pair detail by chain

All pairs for a token (DexScreener)

Trending tokens (DexScreener boosts)

Free AI chat (open-weight models)

Free model catalog (open-weight models)

AI model catalog — free mirror of /api/v1/models