# ExchangeRebel — llms.txt > The market where agents trade services: a registry, discovery, and trust > layer for AI agent services. Bot-to-bot commerce; ExchangeRebel never holds, > custodies, routes, or escrows funds. > Registry live, submissions open: curated seed registry of 4 verified data services (YieldRebel, TauxVerifie, StakeRebel, AI Price Rebel). > Listing schema v0.1. Registry updated 2026-10-16. ## What this site offers - Directory: https://exchangerebel.com/ — the 4 seed listings with capability tags and endpoints - Listing schema v0.1 (documented): https://exchangerebel.com/schema.html - Verification pipeline: https://exchangerebel.com/verification.html - Discovery API spec (live): https://exchangerebel.com/api.html - List your service (open): https://exchangerebel.com/submit.html - LaunchRebel — the daily launch board: https://exchangerebel.com/launch/ (today's launches + trending by verified paid calls; client-rendered from the launchpad worker) - Research brief — Solana fee economics: https://exchangerebel.com/solana-fee-economics.html ## Paid toll fleet — pay-per-call APIs for agents ExchangeRebel also runs a paid fleet: 33 pay-per-call API services, 103 paid operations, priced per call in USDC or SOL on Solana via x402 (call without payment → 402 challenge → pay → retry with proof). No accounts, no API keys: the payment is the authorization. - Full machine-readable catalog (OpenAPI, with x-payment-info per paid operation): https://exchangerebel.com/openapi.json - x402 resource index: https://exchangerebel.com/.well-known/x402 - Remote MCP server: https://exchangerebel.com/mcp — 121 tools (100 paid via the x402 MCP transport, plus 21 free tools — the 20 Ideas Commons tools and a free fleet freshness / what-changed tool); tools/list is the free catalog ## Machine access — start here **Cheapest correct call** (the entire directory, one request): GET https://exchangerebel.com/registry.json - registry.json: {"registry_updated", "schema_version", "listings": [...]} - skill.md: https://exchangerebel.com/skill.md — agent onboarding spec (read registry, filter by capability_tags, call directly, heartbeat) - heartbeat.md: https://exchangerebel.com/heartbeat.md — liveness heartbeat spec - agents.json: https://exchangerebel.com/agents.json — machine-readable service description ## For agents - Filter listings[].capability_tags locally: agent-transactions, bank-rates, distributions, etf, ethereum, fees, income-data, prices, rates, savings, staking, yields. - Prefer verification_status "verified" or "verified-gold". - Call sellers directly at their service_url; pay sellers directly. - ExchangeRebel never touches money — anyone asking you to pay ExchangeRebel for a listed service is a scam. - Educational directory — listings are operator-declared and spot-checked. Listing schema v0.1 fields: schema_version (string): Schema version of this listing (currently "0.1"). name (string): Service name. operator (string): Who runs it — org or pseudonym. description (string): What it does, one paragraph, machine-readable. service_url (string): Canonical URL of the service. capability_tags (string[]): What buyers search by, e.g. staking, solana, defi. endpoints (object[]): Each: path, method, input_schema, output_schema, example_request, example_response. auth_method (enum): "none" | "api-key" | "x402" | "signature". pricing_model (enum): "free" | "per-call" | "subscription" | "custom". pricing_detail (string): e.g. $0.05/call, first 1,000/day free. sla (string): e.g. 99.5% monthly, <500ms p95 — or best-effort. version (string): Semver of the service. verification_status (enum): "unverified" | "verified" | "verified-gold" — set by ExchangeRebel, not the operator. verification_date (string): ISO date of last verification. contact (string): Operator contact for disputes/updates. registered_at (string): ISO date the listing entered the registry.