Remote MCP server giving assistants best-execution swap quotes on Base, payee and contract safety checks, and verified web search, paid per call via x402.
What you can do
Get best-execution swap quotes on Base, comparing Uniswap V3, PancakeSwap V3 and Aerodrome routes with venue, expected output, edge in bps, liquidity flag and block data (read-only). Run a combined payee check before paying an agent: payee verdict, on-chain activity, contract safety and wallet approval-exposure audit. Run verified web search where each result URL is fetched live and page text is matched against the result's title and snippet. Check the quote API health, chain and latest synced block.
When to use it
Useful when an assistant needs to compare swap routes on Base, vet a payee or contract before sending funds, or get web search results that have been independently checked for liveness and content match.
Requirements
A remote streamable HTTP endpoint; no local package, environment variables or headers declared. Some tools are paid per call in USDC via x402 on Base, so a wallet able to pay x402 charges is needed. Network access to the endpoint and to the venues and pages it fetches.
Before you install
flow_paycheck costs $0.50 USDC and flow_search costs $0.01 USDC per call via x402 on Base, so calls spend real funds. Quotes and safety verdicts are informational and should not be treated as guarantees. The server fetches result URLs and third-party pages, sending those requests to outside sites.
Enable the server for the chats that should use its tools.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.flow-executor%2Fflow/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.
Get a best-execution swap quote on Base. Compares Uniswap V3, PancakeSwap V3 and Aerodrome (plus two-hop routes via WETH), returns the winning venue, expected output, edge in bps vs the baseline, a liquidity flag (deep/watch/thin), the exact block number and timestamp, and build latency. Read-only: no funds move.
Before you pay this agent, check. PayCheck ($0.50 USDC via x402 on Base) runs Flow's whole checker stack on a payee in ONE call — the payee verdict (kind, on-chain activity, the full contract-safety engine when the payee is a contract), the wallet approval-exposure audit, contract safety, and the payee's recent USDC settlement history — and returns one finished grade (ALLOW / REVIEW / BLOCK with a 0-100 score), a verify_status (verified / failed / unverified_verifier_down), every check, the evidence under it, and a receipt. The guarantee: the report is produced before settlement; if it cannot be produced, the payment is never settled — no report, no charge. This hosted endpoint does not hold a wallet: an unpaid call returns the endpoint's x402 payment challenge itself, never an invented result. Pay it with any x402 client, or use the @flowexecutor/flow-mcp stdio package with an Early Builder Key.
Parameterspayeerequired
flow_search
Verified Search ($0.01 USDC via x402 on Base): web search where every result is independently checked by Flow before it reaches you — the result URL is fetched live (liveness, final HTTP status recorded) and the fetched page text is matched against the result's own title/snippet terms (content-match score). Each result carries a verify_status (verified / failed / unverified_verifier_down), its httpStatus and contentMatch, and the response carries a receipt counting checked / verified / failed. Bad results are flagged, never silently dropped. The guarantee: the search is produced before settlement; if it cannot be produced, the payment is never settled. This hosted endpoint does not hold a wallet: an unpaid call returns the endpoint's x402 payment challenge itself, never an invented result. Pay it with any x402 client, or use the @flowexecutor/flow-mcp stdio package with an Early Builder Key.
ParametersqueryrequiredmaxResults
flow_health
Check the Flow quote API health: status, chain, and latest synced block number.
Takes no parameters.
Version history
1
v0.1.0LatestOct 12, 2026
Score
75%
75% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Reached in the last 30 daysRequired25 pts
Auth declaredRequired10 pts
Tools listedRequired15 pts
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.