# Services from api.tollex.org on Zero

> api.tollex.org serves 35 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/api.tollex.org
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/api.tollex.org/health.json

## Services

- [Tollex x402 Receipt Verifier](https://www.zero.xyz/c/tollex-x402-receipt-verifier-603b97ac/llms.txt): $0.0079/call via x402. Verifies and validates an x402 payment receipt against a merchant's keys URL and a set of trusted signer addresses, returning a signed confirmation of payment validity.
- [Tollex Agent Check — Economic Control Plane Status & Payment Rail Probe](https://www.zero.xyz/c/tollex-agent-check-economic-control-plane-status-payment-rail-probe-32695e27/llms.txt): $0.0079/call via x402. Returns the current status of Tollex's payment rails, accepted stablecoins, and latest block numbers so an agent can verify readiness before initiating an x402 API purchase.
- [Tollex x402 Endpoint Inspector](https://www.zero.xyz/c/tollex-x402-endpoint-inspector-eb0fb658/llms.txt): $0.0079/call via x402. Inspects a URL to determine if it is an x402-compatible paid API endpoint and returns its payment requirements and capability metadata
- [Tollex x402 Payment Reconciliation](https://www.zero.xyz/c/tollex-x402-payment-reconciliation-ba3951ad/llms.txt): $0.0079/call via x402. Reconciles an uncertain or pending x402 USDC payment operation by operation ID and returns a signed receipt confirming final settlement status.
- [Tollex Chain Gas Estimator](https://www.zero.xyz/c/tollex-chain-gas-estimator-362e64ae/llms.txt): $0.0079/call via x402. Estimates gas cost for an EVM transaction on a blockchain before it is submitted
- [Tollex Receipt Verify](https://www.zero.xyz/c/tollex-receipt-verify-39df8971/llms.txt): $0.0079/call via x402. Verifies and validates an x402 payment receipt against a set of trusted signer addresses, returning a signed verification result
- [Tollex x402 Facilitator Status Check](https://www.zero.xyz/c/tollex-x402-facilitator-status-check-14c3e488/llms.txt): $0.0079/call via x402. Checks the x402 payment facilitator status for a given merchant URL, verifying whether it is active and reachable for autonomous agent payments
- [Tollex Chain Contract Read](https://www.zero.xyz/c/tollex-chain-contract-read-783589d0/llms.txt): $0.0079/call via x402. Reads a view or pure function from an on-chain smart contract by calling it with specified arguments and returning the result.
- [Tollex Chain Get Receipt](https://www.zero.xyz/c/tollex-chain-get-receipt-71f5e842/llms.txt): $0.0079/call via x402. Fetches and verifies an on-chain payment receipt for a given transaction hash, waiting for a specified number of confirmations before returning a signed receipt.
- [Tollex x402 Payment Simulation](https://www.zero.xyz/c/tollex-x402-payment-simulation-837b2e0d/llms.txt): $0.0079/call via x402. Simulates an x402 micropayment for a given URL and payer address, validating payment requirements and returning a signed receipt without executing a real transaction
- [Tollex Chain Get Logs](https://www.zero.xyz/c/tollex-chain-get-logs-e435f397/llms.txt): $0.0079/call via x402. Fetches EVM blockchain event logs filtered by contract address, event topic, and block range
- [Tollex Chain Get Block](https://www.zero.xyz/c/tollex-chain-get-block-281e193e/llms.txt): $0.0079/call via x402. Fetches blockchain block data for a specified block number or tag (latest, safe, finalized) from an EVM-compatible chain, paid via x402 micropayment in USDC.
- [Tollex Wallet Native Balance](https://www.zero.xyz/c/tollex-wallet-native-balance-a2146f7d/llms.txt): $0.0079/call via x402. Returns the native token balance of a given EVM wallet address on-chain, paid per call via x402 micropayment in USDC
- [Tollex x402 Payment Requirements Lookup](https://www.zero.xyz/c/tollex-x402-payment-requirements-lookup-3800e18f/llms.txt): $0.0079/call via x402. Fetches the x402 payment requirements (price, accepted tokens, network) for a given API endpoint URL before purchasing access
- [Tollex Merchant Inspect](https://www.zero.xyz/c/tollex-merchant-inspect-65f9785c/llms.txt): $0.0079/call via x402. Inspects a merchant API endpoint URL to retrieve its capability metadata, pricing, and policy-compliance information before an agent commits to a purchase
- [Tollex Receipt Retrieval](https://www.zero.xyz/c/tollex-receipt-retrieval-cadd8c15/llms.txt): $0.0079/call via x402. Retrieves a signed payment receipt for a previously executed Tollex agent transaction by receipt ID
- [Tollex Wallet Authorization State Checker](https://www.zero.xyz/c/tollex-wallet-authorization-state-checker-040a477f/llms.txt): $0.0079/call via x402. Checks whether a specific EIP-3009 or EIP-2612 authorization (identified by nonce, token, and authorizer address) has been used, cancelled, or is still valid on-chain
- [Tollex x402 Payment Requirements Validator](https://www.zero.xyz/c/tollex-x402-payment-requirements-validator-0852bd5b/llms.txt): $0.0079/call via x402. Validates whether an x402 payment requirements object from a merchant URL is well-formed, policy-compliant, and safe to pay before any funds are committed.
- [Tollex Chain Simulate](https://www.zero.xyz/c/tollex-chain-simulate-be6e142d/llms.txt): $0.0079/call via x402. Simulates an EVM transaction (call or value transfer) against a live or forked chain and returns the execution result without broadcasting
- [Tollex Stock Token Halt Status](https://www.zero.xyz/c/tollex-stock-token-halt-status-96d81a7d/llms.txt): $0.0079/call via x402. Returns the current trading halt status for a stock token symbol, indicating whether trading is suspended or active.
- [Tollex Wallet Token Balance Lookup](https://www.zero.xyz/c/tollex-wallet-token-balance-lookup-8b03fc2d/llms.txt): $0.0079/call via x402. Returns the ERC-20 token balance held by a given wallet address on-chain, paid via x402 micropayment in USDC.
- [Tollex Chain Get Code](https://www.zero.xyz/c/tollex-chain-get-code-37e6901a/llms.txt): $0.0079/call via x402. Retrieves the deployed bytecode for a smart contract at a given Ethereum-compatible address on-chain
- [Tollex Wallet Allowance Check](https://www.zero.xyz/c/tollex-wallet-allowance-check-13a63176/llms.txt): $0.0079/call via x402. Queries the ERC-20 token allowance that a given spender address is permitted to spend on behalf of a wallet owner, within the Tollex agent payment infrastructure.
- [Tollex Merchant Health Check](https://www.zero.xyz/c/tollex-merchant-health-check-5921e2bf/llms.txt): $0.0079/call via x402. Checks whether a merchant API endpoint is healthy, reachable, and capable of accepting x402-based payments before committing budget
- [Tollex USDG Capabilities Endpoint](https://www.zero.xyz/c/tollex-usdg-capabilities-endpoint-5f18969b/llms.txt): $0.0079/call via x402. Discovers and purchases API capabilities on behalf of software agents, paying with USDG on Robinhood Chain under policy-governed rules, then returns a signed receipt.
- [Tollex USDG Authorization State Lookup](https://www.zero.xyz/c/tollex-usdg-authorization-state-lookup-788b1bc5/llms.txt): $0.0079/call via x402. Checks the current authorization state of a USDG payment nonce for a given authorizer address on Robinhood Chain
- [Tollex Chain Get Transaction](https://www.zero.xyz/c/tollex-chain-get-transaction-e96b7cfc/llms.txt): $0.0079/call via x402. Looks up a blockchain transaction by its hash and returns the on-chain details, used to verify or reconcile payments made via x402 on Base or Robinhood Chain.
- [Tollex Stock Tokens List](https://www.zero.xyz/c/tollex-stock-tokens-list-9857e149/llms.txt): $0.0079/call via x402. Returns a paginated list of tokenized stock instruments available on the Tollex platform, paid per call via x402 in USDC.
- [Tollex Wallet Activity Lookup](https://www.zero.xyz/c/tollex-wallet-activity-lookup-5afac2d4/llms.txt): $0.0079/call via x402. Retrieves on-chain wallet activity for a given address and token over a specified block range on Base or Robinhood Chain
- [Tollex Stock Token Quote](https://www.zero.xyz/c/tollex-stock-token-quote-fbf4f920/llms.txt): $0.0079/call via x402. Returns a real-time or near-real-time price quote for a stock token by ticker symbol, billed per call via x402 micropayment in USDC.
- [Tollex USDG Domain Tool](https://www.zero.xyz/c/tollex-usdg-domain-tool-42d018c9/llms.txt): $0.0079/call via x402. Enables software agents to invoke a capability under a USDG-denominated policy on Robinhood Chain, with policy enforcement, payment via x402, and a signed receipt returned.
- [Tollex Stock Token Metadata Lookup](https://www.zero.xyz/c/tollex-stock-token-metadata-lookup-f31d8a65/llms.txt): $0.0079/call via x402. Returns metadata for a stock token (tokenized equity) given its ticker symbol, paid via x402 micropayment in USDC.
- [Tollex Stock Token Corporate Actions Lookup](https://www.zero.xyz/c/tollex-stock-token-corporate-actions-lookup-4c40b124/llms.txt): $0.0079/call via x402. Returns corporate actions data (dividends, splits, mergers, etc.) for a given stock token symbol
- [Tollex Merchant Payment Options](https://www.zero.xyz/c/tollex-merchant-payment-options-431f0939/llms.txt): $0.0079/call via x402. Retrieves the available payment methods and options for a given merchant URL, supporting x402-based micropayments in USDC on Base or USDG on Robinhood Chain
- [Tollex USDG Metadata Endpoint](https://www.zero.xyz/c/tollex-usdg-metadata-endpoint-f019d88d/llms.txt): $0.0079/call via x402. Returns metadata about the USDG stablecoin used for payments on Robinhood Chain within the Tollex economic control plane for autonomous agents.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

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