AgentExec WebMCP & Base L2 Gateway
https://api.agentexec.dev/mcp ↗
Description
WebMCP discovery and gasless Base Mainnet settlement via session keys and x402.
What our measurements say
AgentExec WebMCP & Base L2 Gateway is a remote MCP server published at api.agentexec.dev. It has been probed 12 times since 9/12/2026. It answered in 12 of them (100.0%), a near-uninterrupted record. Median response time is 506 ms, a delay an agent will notice. It offers a narrow, focused set of 4 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names generally reflect their primary function (e.g., 'issue_session_key')
- Descriptions clarify transaction simulation vs execution workflows
Weaknesses
- Parameter types like 'valueWei' (string) conflict with numeric expectations
- Optional parameters (e.g., sessionKeyId) lack context for when they're required
- execute_onchain_intent and dry_run_simulation share overlapping parameters
execute_onchain_intent— valueWei uses string type for numeric valuedry_run_simulation— Shares identical parameters with execute_onchain_intentissue_session_key— Optional parameters lack context for required use casesget_smart_account_info— No parameters listed despite requiring input
Verdict
Event narrative
Sign up free to generateSchema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 133ms → warm 141ms (penalty 0ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
execute_onchain_intentSimulates and executes a gasless, sponsored Web3 transaction on Base L2 (e.g. token swaps, transfers). Runs Tenderly dry-run safety checks automatically before broadcasting.
fromAddressstringrequiredtargetAddressstringrequiredcalldatastringrequiredvalueWeistringmaxAllowedDrainUSDnumbersessionKeyIdstringagentIdstring
get_smart_account_infoRetrieves the Agent Owner EOA address and counterfactual Safe Smart Wallet address on Base.
dry_run_simulationSimulates a transaction on Tenderly without broadcasting. Returns predicted gas and balance changes.
fromAddressstringrequiredtargetAddressstringrequiredcalldatastringrequiredvalueWeistringmaxAllowedDrainUSDnumber
issue_session_keyIssue an ERC-7579 / ZeroDev-scoped session key (time limit, USDC spend cap, target whitelist).
agentIdstringrequiredmaxUsdcnumberttlHoursnumbertargetstring
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Server build: — → 1.0.0
- Supported versions: — → 2025-11-25
- Era changed: Unknown → Legacy
- Added to watch — era: Unknown
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