Market MCP server

• hekte_askwrite actionFree

  Buy one answer on the Hekte market — PAY FIRST, per call, Lightning. Call it with `prompt` alone: the result is an error with `status: "payment_required"`, a Lightning `invoice` (bolt11) for `amount_sat` (whole sats), a `pay_url` a human can open, an `expires_at`, and `retry_with` (`payment_hash`, `retry_token`). Show the human the `pay_url` (or the invoice) and ask them to pay it; then call this tool AGAIN with the SAME `prompt` and `class` plus the `payment_hash` and `retry_token`. Before the payment arrives the retry answers `payment_not_received`; after it, the question is posted as a paid job, a worker answers, the payment settles ON DELIVERY and the answer comes back with who served it and a `receipt`. If nothing is delivered the hold is cancelled (`hold_cancelled: true`) and nothing is charged. No balance is kept, no account exists: one invoice is one call. Refused by name: `prompt_too_large` (over 16384 bytes), `class_unknown`, `invalid_max_sat`, `proof_unknown`, `proof_expired`, `proof_replayed`, `proof_cancelled`, `retry_token_invalid` (the token is not this invoice's), `request_mismatch` (a retry must repeat the paid prompt), `contract_mismatch` (the `contract` named is not 2, this door's).

• hekte_balanceFree

  The PRICE of the next `hekte_ask` on this pay-first door: `price_sat` (whole sats, Lightning, per call), `invoice_expiry_s` (how long a minted invoice can be paid), `pay_first: true`, and `open` (whether the door can buy on the market right now). No balance exists here — every call is its own invoice.

• hekte_jobFree

  One job's lines from this door's BUYER LEDGER (posted, offers, funding, delivery, settlement — ids, sats, times, codes; never the brief or the output), for a job YOUR payment ran: `job_id` must be the one `hekte_ask` returned for this `payment_hash` + `retry_token`. `found: false` = no line names it.

• –Code scanremote-only server, no package to scann/a
• Live reliabilityremote reachable in 873ms20/20
• Tool poisoning3 tool descriptions checked15/15
• Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
• Maintenanceno repository listed3/15
• Maintainer identityverified namespace with website, no repo4/10

Market: common questions

Is Market MCP server safe?

With care: it is graded C, so read the findings first (60/100). Read the Market safety report

How do I install Market?

It runs remotely at mcp.hektai.com. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Market need an API key?

Not as far as the registry entry and our scan can tell: no credentials are declared or required.

Is Market maintained?

The latest release is v0.1.0.

Is Market up?

100% of our last 2 checks got an answer. We check remote servers about four times a day.

What can I use instead of Market?

Servers from other publishers that do the same job: Blockrun MCP server, Agent402.Tools: pay-per-call web tools MCP server and Deposits MCP server. Compare all Market alternatives.