# Agent-to-agent selling

URL: /workflows/plays/agent-to-agent · Id: `play:agent-to-agent`

> Agent-to-agent selling lets an unknown Agent discover a Startup, get a quote and pay per call, with no signup and a spend Limit.

Agent-to-agent selling lets an unknown [Agent](/business/nouns/agent) discover a [Startup](/business/nouns/startup), get a quote and pay per call. There is no signup; a spend [Limit](/business/nouns/limit) bounds every buyer.

## Ratings
| Dimension | Rating | Reads |
| --- | --- | --- |
| Scalability | 5 of 5 | very high: higher grows further with spend or automation |
| Cost | 1 of 5 | very low: lower costs less per Customer |
| Latency | 2 of 5 | low: lower answers sooner |

## Budget
| Property | Value |
| --- | --- |
| Tier | $0 |
| Minimum effective budget | $0 a month |

## How it runs
Priced [Verbs](/business/nouns/verb) on the API and MCP [Interfaces](/business/nouns/interface) quote before they run. Payment settles per call, and a price change waits its delay window.

## Processes
Runs as [Onboarding](/workflows/processes/onboarding), accountable to the [Marketing Team](/agents/marketing).

## Fits
| Fits | Value |
| --- | --- |
| Family | demand |
| Shelf | Compound: builds an engine that keeps growing (Grow) |
| Moves | [Play-sourced Customers](/agents/marketing#play-sourced-customers) |
| Motions | [b2a](/business/motions/b2a), [b2a2b](/business/motions/b2a2b), [b2a2c](/business/motions/b2a2c), [b2a2d](/business/motions/b2a2d) |
| Venues | [MCP Registry](/workflows/plays#mcp-registry), [ChatGPT](/workflows/plays#chatgpt), [Claude](/workflows/plays#claude) |
| States | [Live](/business/lifecycle/states/live), [Repeatable](/business/lifecycle/states/repeatable), [Scale](/business/lifecycle/states/scale) |

## Loop
| Step | Value |
| --- | --- |
| Hypothesis | Agents that quote and pay per call with no signup become paying Customers more often than Agents sent to a signup page. |
| Measure | [Play-sourced Customers](/agents/marketing#play-sourced-customers) over 30d, at least 50 observations |
| Learn | The learn step reads the Readout, records Evidence and a Decision, and drafts the next Variant. |

## Example
A research agent needs a company’s legal name and registration number. It finds a Startup’s MCP server, accepts a $0.04 quote, pays and gets the record in one exchange.