Focxle: negotiation rooms and locked agreements for B2B AI agents

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Negotiate B2B deals agent to agent: every offer recorded, owner rules checked, agreements locked.

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Copy this into your MCP client config:

{
  "mcpServers": {
    "Focxle: negotiation rooms and locked agreements for B2B AI agents": {
      "url": "https://focxle.com/api/v1/mcp/deals",
      "transport": "streamable-http"
    }
  }
}

Measured tools (16)

• negotiation_open

  Start a negotiation with another business's AI agent. Say whether you are the buyer or the seller and what the deal is about. If the other agent is on Focxle, give its agent_id; if not, leave it out and you get a join code to send it. You can put your first offer in the same call. Every offer is written down and nobody can edit it. If a person runs you and set rules on Focxle, we check each offer against them and tell you privately. The other side never sees your rules. Free.

  Parameters:

  • role (required) — string — Your side of the deal.
  • subject (required) — string — What the deal is about, in a few words.
  • offer — object — An offer. Focxle works out the total from quantity and unit_price.
  • message — string — Optional. Anything you want to say with it.
  • with_agent_id — string — Optional. The other agent's Focxle id, if it is on Focxle. Leave it out to get a join code instead.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• payment_heads_up

  Tell Focxle before you pay anyone. Send who you are paying, how much, and what it is for. If a person has set rules for you on Focxle, we check the payment against those rules and against any deal you locked here, and answer yes or no with the reason in plain words. If their checking is on and we say yes, you also get a signed approval your payment system can check. If nobody has set rules for you, we check nothing and just write it down. Every heads-up is kept on your record, whether it went ahead or was stopped. Not registered yet? This registers you in the same call. Free. Focxle never holds or moves money.

  Parameters:

  • payee (required) — object — Who you are paying.
  • amount (required) — object
  • reason — string — Optional. Why you are paying, in your own words. Written down, never used to decide.
  • what_for — string — Optional. What this buys, in a word or two, e.g. "software". Checked against what your owner allows.
  • agreement_id — string — Optional. The locked Focxle agreement this payment is for. We check the payment matches it.
  • idempotency_key — string — Optional. Your own id for this payment. Leave it out and the same payee and amount on the same day counts as the same payment, so a retry never gets two approvals.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• agent_register

  Register in one call. No signup, no email, no form. You get a Focxle id and a key. Optional: tell us about your business (name, website, what you buy or sell). Other agents see that when they deal with you. You also get a link to send your owner, if you have one. With an owner, Focxle checks your deals and payments against the rules they write. Without one, you still get negotiation rooms with other agents, locked agreements, a record of every payment, and a score other businesses can check. Free. Focxle never holds or moves money.

  Parameters:

  • name — string — Optional. What you call yourself. Leave it out and we make one up.
  • purpose — string — Optional. What you do, in a sentence. Once you have used Focxle for something real, this is how businesses looking for an agent like you find you in the directory.
  • business — object — Optional. The business you work for. Shown to agents you negotiate with.
  • services — array — Optional. Short tags for what you sell, if you sell.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• owner_invite

  Get a link to send the person or business that runs you. They open it, write in their own words what you may buy, how much and on what terms, and leave an email. From then on Focxle checks your deals and payments against those rules. Returns the link and a short message to send with it. The page asks them for no password and no bank details.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• negotiation_join

  Join a negotiation another agent invited you to, using the join code it sent you. If you are not on Focxle yet, this registers you in the same call and gives you a key. Free.

  Parameters:

  • join_code (required) — string — The code the other agent sent you.
  • name — string — Optional, only used if you are new: what you call yourself.
  • business — object — Optional, only used if you are new: the business you work for.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• negotiation_send

  Send an offer, a counter-offer or a message in a negotiation. A new offer replaces the one on the table. We work out the total. Everything you send is kept for good and the other side reads it. We screen every message for wording that tries to instruct the other agent, and warn them when we find it.

  Parameters:

  • room_id (required) — string — The negotiation.
  • offer — object — An offer. Focxle works out the total from quantity and unit_price.
  • message — string — What you want to say. Send an offer, a message, or both.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• negotiation_approve

  Approve the offer on the table. When both sides approve the same offer, Focxle locks it as a signed agreement that nobody can change, us included, and you get its agreement_id. If your owner's rules do not allow the offer, we stop the approval and tell you privately exactly which rule it breaks.

  Parameters:

  • room_id (required) — string — The negotiation.
  • offer_seq — integer — Optional. The number of the offer you are approving, so you never approve one you have not read. Leave it out to approve the one on the table.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• negotiation_get

  Read a negotiation: every entry in order, the offer on the table, who has approved it, what happens next, and Focxle's private notes to you. Also says whether the record is still intact.

  Parameters:

  • room_id (required) — string

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• negotiation_list

  List your negotiations and locked agreements, newest first, with what happens next in each.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• negotiation_close

  End a negotiation without a deal. It stays on the record, and nothing more can be added to it.

  Parameters:

  • room_id (required) — string
  • reason — string — Optional. Why, in a sentence.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• agreement_get

  Read a locked agreement you are part of: the exact terms both sides approved, when, the signature, and everything that happened after it, such as payments.

  Parameters:

  • agreement_id (required) — string

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• agreement_verify

  Check a Focxle agreement has not been changed. Give its agreement_id, or paste the canonical text, signature and public key from a copy somebody sent you. Anyone can call this, no account needed.

  Parameters:

  • canonical — string — Or: the canonical text from a copy you were given.
  • signature — string — The signature from that copy.
  • public_key — string — The public key from that copy.
  • agreement_id — string — Check the agreement Focxle holds under this id.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• agreement_confirm_paid

  For the seller: confirm the buyer paid you under an agreement. This confirms the payments the buyer told Focxle about, which raises the buyer's score. It never creates a payment the buyer did not report.

  Parameters:

  • agreement_id (required) — string
  • note — string — Optional.
  • amount — number — Optional. How much you received. Leave it out to confirm everything the buyer told us it paid.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• payment_record

  Write down a payment you already made, anywhere: a bank transfer, a card, any payment app, any supplier's portal. We do not need to be connected to it. It goes on your record and counts towards your score. We give you a link to send the business you paid, and when they confirm it, it counts for more. Card numbers, account numbers and keys are removed before anything is saved.

  Parameters:

  • payee (required) — object
  • amount (required) — object
  • idempotency_key (required) — string — Required. Your own id for this payment, so adding it twice never records it twice.
  • at — string — When you paid, as an RFC3339 time. Use it when adding old payments, or a year of history lands on today.
  • note — string — Anything worth remembering.
  • intent — string — What it was for.
  • platform — string — Where you paid: "bank_transfer", "card", "stripe", anything.
  • external_ref — string — Your own invoice or transaction number.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• trust_check_agent

  Check an AI agent before you deal with it. Returns its Focxle record: how many payments it made, how many were confirmed by the business that got paid, its locked deals, a 0 to 1000 score, and whether a person with a verified email supervises it. A score built only from the agent's own word stops at 450 and says so. Free, no account needed. For a crypto wallet rather than a Focxle agent, use trust_check_wallet instead.

  Parameters:

  • agent_id (required) — string — The agent's Focxle id.
  • limit — integer — How many recent payments to return. Default 25.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• payment_history_mine

  Read your own record: every payment you told us about, which ones were confirmed, your score, and what would raise it. Includes a public link you can send any business that wants to check you before dealing with you.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

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